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How to write a case study — examples, templates, and tools

It’s a marketer’s job to communicate the effectiveness of a product or service to potential and current customers to convince them to buy and keep business moving. One of the best methods for doing this is to share success stories that are relatable to prospects and customers based on their pain points, experiences, and overall needs.

That’s where case studies come in. Case studies are an essential part of a content marketing plan. These in-depth stories of customer experiences are some of the most effective at demonstrating the value of a product or service. Yet many marketers don’t use them, whether because of their regimented formats or the process of customer involvement and approval.

A case study is a powerful tool for showcasing your hard work and the success your customer achieved. But writing a great case study can be difficult if you’ve never done it before or if it’s been a while. This guide will show you how to write an effective case study and provide real-world examples and templates that will keep readers engaged and support your business.

In this article, you’ll learn:

What is a case study?

How to write a case study, case study templates, case study examples, case study tools.

A case study is the detailed story of a customer’s experience with a product or service that demonstrates their success and often includes measurable outcomes. Case studies are used in a range of fields and for various reasons, from business to academic research. They’re especially impactful in marketing as brands work to convince and convert consumers with relatable, real-world stories of actual customer experiences.

The best case studies tell the story of a customer’s success, including the steps they took, the results they achieved, and the support they received from a brand along the way. To write a great case study, you need to:

• Celebrate the customer and make them — not a product or service — the star of the story.
• Craft the story with specific audiences or target segments in mind so that the story of one customer will be viewed as relatable and actionable for another customer.
• Write copy that is easy to read and engaging so that readers will gain the insights and messages intended.
• Follow a standardized format that includes all of the essentials a potential customer would find interesting and useful.
• Support all of the claims for success made in the story with data in the forms of hard numbers and customer statements.

Case studies are a type of review but more in depth, aiming to show — rather than just tell — the positive experiences that customers have with a brand. Notably, 89% of consumers read reviews before deciding to buy, and 79% view case study content as part of their purchasing process. When it comes to B2B sales, 52% of buyers rank case studies as an important part of their evaluation process.

Telling a brand story through the experience of a tried-and-true customer matters. The story is relatable to potential new customers as they imagine themselves in the shoes of the company or individual featured in the case study. Showcasing previous customers can help new ones see themselves engaging with your brand in the ways that are most meaningful to them.

Besides sharing the perspective of another customer, case studies stand out from other content marketing forms because they are based on evidence. Whether pulling from client testimonials or data-driven results, case studies tend to have more impact on new business because the story contains information that is both objective (data) and subjective (customer experience) — and the brand doesn’t sound too self-promotional.

Case studies are unique in that there’s a fairly standardized format for telling a customer’s story. But that doesn’t mean there isn’t room for creativity. It’s all about making sure that teams are clear on the goals for the case study — along with strategies for supporting content and channels — and understanding how the story fits within the framework of the company’s overall marketing goals.

Here are the basic steps to writing a good case study.

1. Identify your goal

Start by defining exactly who your case study will be designed to help. Case studies are about specific instances where a company works with a customer to achieve a goal. Identify which customers are likely to have these goals, as well as other needs the story should cover to appeal to them.

The answer is often found in one of the buyer personas that have been constructed as part of your larger marketing strategy. This can include anything from new leads generated by the marketing team to long-term customers that are being pressed for cross-sell opportunities. In all of these cases, demonstrating value through a relatable customer success story can be part of the solution to conversion.

2. Choose your client or subject

Who you highlight matters. Case studies tie brands together that might otherwise not cross paths. A writer will want to ensure that the highlighted customer aligns with their own company’s brand identity and offerings. Look for a customer with positive name recognition who has had great success with a product or service and is willing to be an advocate.

The client should also match up with the identified target audience. Whichever company or individual is selected should be a reflection of other potential customers who can see themselves in similar circumstances, having the same problems and possible solutions.

Some of the most compelling case studies feature customers who:

• Switch from one product or service to another while naming competitors that missed the mark.
• Experience measurable results that are relatable to others in a specific industry.
• Represent well-known brands and recognizable names that are likely to compel action.
• Advocate for a product or service as a champion and are well-versed in its advantages.

Whoever or whatever customer is selected, marketers must ensure they have the permission of the company involved before getting started. Some brands have strict review and approval procedures for any official marketing or promotional materials that include their name. Acquiring those approvals in advance will prevent any miscommunication or wasted effort if there is an issue with their legal or compliance teams.

3. Conduct research and compile data

Substantiating the claims made in a case study — either by the marketing team or customers themselves — adds validity to the story. To do this, include data and feedback from the client that defines what success looks like. This can be anything from demonstrating return on investment (ROI) to a specific metric the customer was striving to improve. Case studies should prove how an outcome was achieved and show tangible results that indicate to the customer that your solution is the right one.

This step could also include customer interviews. Make sure that the people being interviewed are key stakeholders in the purchase decision or deployment and use of the product or service that is being highlighted. Content writers should work off a set list of questions prepared in advance. It can be helpful to share these with the interviewees beforehand so they have time to consider and craft their responses. One of the best interview tactics to keep in mind is to ask questions where yes and no are not natural answers. This way, your subject will provide more open-ended responses that produce more meaningful content.

4. Choose the right format

There are a number of different ways to format a case study. Depending on what you hope to achieve, one style will be better than another. However, there are some common elements to include, such as:

• An engaging headline
• A subject and customer introduction
• The unique challenge or challenges the customer faced
• The solution the customer used to solve the problem
• The results achieved
• Data and statistics to back up claims of success
• A strong call to action (CTA) to engage with the vendor

It’s also important to note that while case studies are traditionally written as stories, they don’t have to be in a written format. Some companies choose to get more creative with their case studies and produce multimedia content, depending on their audience and objectives. Case study formats can include traditional print stories, interactive web or social content, data-heavy infographics, professionally shot videos, podcasts, and more.

5. Write your case study

We’ll go into more detail later about how exactly to write a case study, including templates and examples. Generally speaking, though, there are a few things to keep in mind when writing your case study.

• Be clear and concise. Readers want to get to the point of the story quickly and easily, and they’ll be looking to see themselves reflected in the story right from the start.
• Provide a big picture. Always make sure to explain who the client is, their goals, and how they achieved success in a short introduction to engage the reader.
• Construct a clear narrative. Stick to the story from the perspective of the customer and what they needed to solve instead of just listing product features or benefits.
• Leverage graphics. Incorporating infographics, charts, and sidebars can be a more engaging and eye-catching way to share key statistics and data in readable ways.
• Offer the right amount of detail. Most case studies are one or two pages with clear sections that a reader can skim to find the information most important to them.
• Include data to support claims. Show real results — both facts and figures and customer quotes — to demonstrate credibility and prove the solution works.

6. Promote your story

Marketers have a number of options for distribution of a freshly minted case study. Many brands choose to publish case studies on their website and post them on social media. This can help support SEO and organic content strategies while also boosting company credibility and trust as visitors see that other businesses have used the product or service.

Marketers are always looking for quality content they can use for lead generation. Consider offering a case study as gated content behind a form on a landing page or as an offer in an email message. One great way to do this is to summarize the content and tease the full story available for download after the user takes an action.

Sales teams can also leverage case studies, so be sure they are aware that the assets exist once they’re published. Especially when it comes to larger B2B sales, companies often ask for examples of similar customer challenges that have been solved.

Now that you’ve learned a bit about case studies and what they should include, you may be wondering how to start creating great customer story content. Here are a couple of templates you can use to structure your case study.

Template 1 — Challenge-solution-result format

• Start with an engaging title. This should be fewer than 70 characters long for SEO best practices. One of the best ways to approach the title is to include the customer’s name and a hint at the challenge they overcame in the end.
• Create an introduction. Lead with an explanation as to who the customer is, the need they had, and the opportunity they found with a specific product or solution. Writers can also suggest the success the customer experienced with the solution they chose.
• Present the challenge. This should be several paragraphs long and explain the problem the customer faced and the issues they were trying to solve. Details should tie into the company’s products and services naturally. This section needs to be the most relatable to the reader so they can picture themselves in a similar situation.
• Share the solution. Explain which product or service offered was the ideal fit for the customer and why. Feel free to delve into their experience setting up, purchasing, and onboarding the solution.
• Explain the results. Demonstrate the impact of the solution they chose by backing up their positive experience with data. Fill in with customer quotes and tangible, measurable results that show the effect of their choice.
• Ask for action. Include a CTA at the end of the case study that invites readers to reach out for more information, try a demo, or learn more — to nurture them further in the marketing pipeline. What you ask of the reader should tie directly into the goals that were established for the case study in the first place.

Template 2 — Data-driven format

• Start with an engaging title. Be sure to include a statistic or data point in the first 70 characters. Again, it’s best to include the customer’s name as part of the title.
• Create an overview. Share the customer’s background and a short version of the challenge they faced. Present the reason a particular product or service was chosen, and feel free to include quotes from the customer about their selection process.
• Present data point 1. Isolate the first metric that the customer used to define success and explain how the product or solution helped to achieve this goal. Provide data points and quotes to substantiate the claim that success was achieved.
• Present data point 2. Isolate the second metric that the customer used to define success and explain what the product or solution did to achieve this goal. Provide data points and quotes to substantiate the claim that success was achieved.
• Present data point 3. Isolate the final metric that the customer used to define success and explain what the product or solution did to achieve this goal. Provide data points and quotes to substantiate the claim that success was achieved.
• Summarize the results. Reiterate the fact that the customer was able to achieve success thanks to a specific product or service. Include quotes and statements that reflect customer satisfaction and suggest they plan to continue using the solution.
• Ask for action. Include a CTA at the end of the case study that asks readers to reach out for more information, try a demo, or learn more — to further nurture them in the marketing pipeline. Again, remember that this is where marketers can look to convert their content into action with the customer.

While templates are helpful, seeing a case study in action can also be a great way to learn. Here are some examples of how Adobe customers have experienced success.

Juniper Networks

One example is the Adobe and Juniper Networks case study , which puts the reader in the customer’s shoes. The beginning of the story quickly orients the reader so that they know exactly who the article is about and what they were trying to achieve. Solutions are outlined in a way that shows Adobe Experience Manager is the best choice and a natural fit for the customer. Along the way, quotes from the client are incorporated to help add validity to the statements. The results in the case study are conveyed with clear evidence of scale and volume using tangible data.

The story of Lenovo’s journey with Adobe is one that spans years of planning, implementation, and rollout. The Lenovo case study does a great job of consolidating all of this into a relatable journey that other enterprise organizations can see themselves taking, despite the project size. This case study also features descriptive headers and compelling visual elements that engage the reader and strengthen the content.

Tata Consulting

When it comes to using data to show customer results, this case study does an excellent job of conveying details and numbers in an easy-to-digest manner. Bullet points at the start break up the content while also helping the reader understand exactly what the case study will be about. Tata Consulting used Adobe to deliver elevated, engaging content experiences for a large telecommunications client of its own — an objective that’s relatable for a lot of companies.

Case studies are a vital tool for any marketing team as they enable you to demonstrate the value of your company’s products and services to others. They help marketers do their job and add credibility to a brand trying to promote its solutions by using the experiences and stories of real customers.

When you’re ready to get started with a case study:

• Think about a few goals you’d like to accomplish with your content.
• Make a list of successful clients that would be strong candidates for a case study.
• Reach out to the client to get their approval and conduct an interview.
• Gather the data to present an engaging and effective customer story.

Adobe can help

There are several Adobe products that can help you craft compelling case studies. Adobe Experience Platform helps you collect data and deliver great customer experiences across every channel. Once you’ve created your case studies, Experience Platform will help you deliver the right information to the right customer at the right time for maximum impact.

To learn more, watch the Adobe Experience Platform story .

Keep in mind that the best case studies are backed by data. That’s where Adobe Real-Time Customer Data Platform and Adobe Analytics come into play. With Real-Time CDP, you can gather the data you need to build a great case study and target specific customers to deliver the content to the right audience at the perfect moment.

Watch the Real-Time CDP overview video to learn more.

Finally, Adobe Analytics turns real-time data into real-time insights. It helps your business collect and synthesize data from multiple platforms to make more informed decisions and create the best case study possible.

Request a demo to learn more about Adobe Analytics.

https://business.adobe.com/blog/perspectives/b2b-ecommerce-10-case-studies-inspire-you

https://business.adobe.com/blog/basics/business-case

https://business.adobe.com/blog/basics/what-is-real-time-analytics

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• Knowledge Base

Methodology

• What Is a Case Study? | Definition, Examples & Methods

What Is a Case Study? | Definition, Examples & Methods

Published on May 8, 2019 by Shona McCombes . Revised on November 20, 2023.

A case study is a detailed study of a specific subject, such as a person, group, place, event, organization, or phenomenon. Case studies are commonly used in social, educational, clinical, and business research.

A case study research design usually involves qualitative methods , but quantitative methods are sometimes also used. Case studies are good for describing , comparing, evaluating and understanding different aspects of a research problem .

Table of contents

When to do a case study, step 1: select a case, step 2: build a theoretical framework, step 3: collect your data, step 4: describe and analyze the case, other interesting articles.

A case study is an appropriate research design when you want to gain concrete, contextual, in-depth knowledge about a specific real-world subject. It allows you to explore the key characteristics, meanings, and implications of the case.

Case studies are often a good choice in a thesis or dissertation . They keep your project focused and manageable when you don’t have the time or resources to do large-scale research.

You might use just one complex case study where you explore a single subject in depth, or conduct multiple case studies to compare and illuminate different aspects of your research problem.

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Once you have developed your problem statement and research questions , you should be ready to choose the specific case that you want to focus on. A good case study should have the potential to:

• Provide new or unexpected insights into the subject
• Challenge or complicate existing assumptions and theories
• Propose practical courses of action to resolve a problem
• Open up new directions for future research

TipIf your research is more practical in nature and aims to simultaneously investigate an issue as you solve it, consider conducting action research instead.

Unlike quantitative or experimental research , a strong case study does not require a random or representative sample. In fact, case studies often deliberately focus on unusual, neglected, or outlying cases which may shed new light on the research problem.

Example of an outlying case studyIn the 1960s the town of Roseto, Pennsylvania was discovered to have extremely low rates of heart disease compared to the US average. It became an important case study for understanding previously neglected causes of heart disease.

However, you can also choose a more common or representative case to exemplify a particular category, experience or phenomenon.

Example of a representative case studyIn the 1920s, two sociologists used Muncie, Indiana as a case study of a typical American city that supposedly exemplified the changing culture of the US at the time.

While case studies focus more on concrete details than general theories, they should usually have some connection with theory in the field. This way the case study is not just an isolated description, but is integrated into existing knowledge about the topic. It might aim to:

• Exemplify a theory by showing how it explains the case under investigation
• Expand on a theory by uncovering new concepts and ideas that need to be incorporated
• Challenge a theory by exploring an outlier case that doesn’t fit with established assumptions

To ensure that your analysis of the case has a solid academic grounding, you should conduct a literature review of sources related to the topic and develop a theoretical framework . This means identifying key concepts and theories to guide your analysis and interpretation.

There are many different research methods you can use to collect data on your subject. Case studies tend to focus on qualitative data using methods such as interviews , observations , and analysis of primary and secondary sources (e.g., newspaper articles, photographs, official records). Sometimes a case study will also collect quantitative data.

Example of a mixed methods case studyFor a case study of a wind farm development in a rural area, you could collect quantitative data on employment rates and business revenue, collect qualitative data on local people’s perceptions and experiences, and analyze local and national media coverage of the development.

The aim is to gain as thorough an understanding as possible of the case and its context.

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In writing up the case study, you need to bring together all the relevant aspects to give as complete a picture as possible of the subject.

How you report your findings depends on the type of research you are doing. Some case studies are structured like a standard scientific paper or thesis , with separate sections or chapters for the methods , results and discussion .

Others are written in a more narrative style, aiming to explore the case from various angles and analyze its meanings and implications (for example, by using textual analysis or discourse analysis ).

In all cases, though, make sure to give contextual details about the case, connect it back to the literature and theory, and discuss how it fits into wider patterns or debates.

If you want to know more about statistics , methodology , or research bias , make sure to check out some of our other articles with explanations and examples.

• Normal distribution
• Degrees of freedom
• Null hypothesis
• Discourse analysis
• Control groups
• Mixed methods research
• Non-probability sampling
• Quantitative research
• Ecological validity

Research bias

• Rosenthal effect
• Implicit bias
• Cognitive bias
• Selection bias
• Negativity bias
• Status quo bias

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All You Wanted to Know About How to Write a Case Study

What do you study in your college? If you are a psychology, sociology, or anthropology student, we bet you might be familiar with what a case study is. This research method is used to study a certain person, group, or situation. In this guide from our dissertation writing service , you will learn how to write a case study professionally, from researching to citing sources properly. Also, we will explore different types of case studies and show you examples — so that you won’t have any other questions left.

What Is a Case Study?

A case study is a subcategory of research design which investigates problems and offers solutions. Case studies can range from academic research studies to corporate promotional tools trying to sell an idea—their scope is quite vast.

What Is the Difference Between a Research Paper and a Case Study?

While research papers turn the reader’s attention to a certain problem, case studies go even further. Case study guidelines require students to pay attention to details, examining issues closely and in-depth using different research methods. For example, case studies may be used to examine court cases if you study Law, or a patient's health history if you study Medicine. Case studies are also used in Marketing, which are thorough, empirically supported analysis of a good or service's performance. Well-designed case studies can be valuable for prospective customers as they can identify and solve the potential customers pain point.

Case studies involve a lot of storytelling – they usually examine particular cases for a person or a group of people. This method of research is very helpful, as it is very practical and can give a lot of hands-on information. Most commonly, the length of the case study is about 500-900 words, which is much less than the length of an average research paper.

The structure of a case study is very similar to storytelling. It has a protagonist or main character, which in your case is actually a problem you are trying to solve. You can use the system of 3 Acts to make it a compelling story. It should have an introduction, rising action, a climax where transformation occurs, falling action, and a solution.

Here is a rough formula for you to use in your case study:

Problem (Act I): > Solution (Act II) > Result (Act III) > Conclusion.

Types of Case Studies

The purpose of a case study is to provide detailed reports on an event, an institution, a place, future customers, or pretty much anything. There are a few common types of case study, but the type depends on the topic. The following are the most common domains where case studies are needed:

• Historical case studies are great to learn from. Historical events have a multitude of source info offering different perspectives. There are always modern parallels where these perspectives can be applied, compared, and thoroughly analyzed.
• Problem-oriented case studies are usually used for solving problems. These are often assigned as theoretical situations where you need to immerse yourself in the situation to examine it. Imagine you’re working for a startup and you’ve just noticed a significant flaw in your product’s design. Before taking it to the senior manager, you want to do a comprehensive study on the issue and provide solutions. On a greater scale, problem-oriented case studies are a vital part of relevant socio-economic discussions.
• Cumulative case studies collect information and offer comparisons. In business, case studies are often used to tell people about the value of a product.
• Critical case studies explore the causes and effects of a certain case.
• Illustrative case studies describe certain events, investigating outcomes and lessons learned.

Need a compelling case study? EssayPro has got you covered. Our experts are ready to provide you with detailed, insightful case studies that capture the essence of real-world scenarios. Elevate your academic work with our professional assistance.

Case Study Format

The case study format is typically made up of eight parts:

• Executive Summary. Explain what you will examine in the case study. Write an overview of the field you’re researching. Make a thesis statement and sum up the results of your observation in a maximum of 2 sentences.
• Background. Provide background information and the most relevant facts. Isolate the issues.
• Case Evaluation. Isolate the sections of the study you want to focus on. In it, explain why something is working or is not working.
• Proposed Solutions. Offer realistic ways to solve what isn’t working or how to improve its current condition. Explain why these solutions work by offering testable evidence.
• Conclusion. Summarize the main points from the case evaluations and proposed solutions. 6. Recommendations. Talk about the strategy that you should choose. Explain why this choice is the most appropriate.
• Implementation. Explain how to put the specific strategies into action.
• References. Provide all the citations.

How to Write a Case Study

Let's discover how to write a case study.

Setting Up the Research

When writing a case study, remember that research should always come first. Reading many different sources and analyzing other points of view will help you come up with more creative solutions. You can also conduct an actual interview to thoroughly investigate the customer story that you'll need for your case study. Including all of the necessary research, writing a case study may take some time. The research process involves doing the following:

• Define your objective. Explain the reason why you’re presenting your subject. Figure out where you will feature your case study; whether it is written, on video, shown as an infographic, streamed as a podcast, etc.
• Determine who will be the right candidate for your case study. Get permission, quotes, and other features that will make your case study effective. Get in touch with your candidate to see if they approve of being part of your work. Study that candidate’s situation and note down what caused it.
• Identify which various consequences could result from the situation. Follow these guidelines on how to start a case study: surf the net to find some general information you might find useful.
• Make a list of credible sources and examine them. Seek out important facts and highlight problems. Always write down your ideas and make sure to brainstorm.
• Focus on several key issues – why they exist, and how they impact your research subject. Think of several unique solutions. Draw from class discussions, readings, and personal experience. When writing a case study, focus on the best solution and explore it in depth. After having all your research in place, writing a case study will be easy. You may first want to check the rubric and criteria of your assignment for the correct case study structure.

Read Also: ' WHAT IS A CREDIBLE SOURCES ?'

Although your instructor might be looking at slightly different criteria, every case study rubric essentially has the same standards. Your professor will want you to exhibit 8 different outcomes:

• Correctly identify the concepts, theories, and practices in the discipline.
• Identify the relevant theories and principles associated with the particular study.
• Evaluate legal and ethical principles and apply them to your decision-making.
• Recognize the global importance and contribution of your case.
• Construct a coherent summary and explanation of the study.
• Demonstrate analytical and critical-thinking skills.
• Explain the interrelationships between the environment and nature.
• Integrate theory and practice of the discipline within the analysis.

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Case Study Outline

Let's look at the structure of an outline based on the issue of the alcoholic addiction of 30 people.

Introduction

• Statement of the issue: Alcoholism is a disease rather than a weakness of character.
• Presentation of the problem: Alcoholism is affecting more than 14 million people in the USA, which makes it the third most common mental illness there.
• Explanation of the terms: In the past, alcoholism was commonly referred to as alcohol dependence or alcohol addiction. Alcoholism is now the more severe stage of this addiction in the disorder spectrum.
• Hypotheses: Drinking in excess can lead to the use of other drugs.
• Importance of your story: How the information you present can help people with their addictions.
• Background of the story: Include an explanation of why you chose this topic.
• Presentation of analysis and data: Describe the criteria for choosing 30 candidates, the structure of the interview, and the outcomes.
• Strong argument 1: ex. X% of candidates dealing with anxiety and depression...
• Strong argument 2: ex. X amount of people started drinking by their mid-teens.
• Strong argument 3: ex. X% of respondents’ parents had issues with alcohol.
• Concluding statement: I have researched if alcoholism is a disease and found out that…
• Recommendations: Ways and actions for preventing alcohol use.

Writing a Case Study Draft

After you’ve done your case study research and written the outline, it’s time to focus on the draft. In a draft, you have to develop and write your case study by using: the data which you collected throughout the research, interviews, and the analysis processes that were undertaken. Follow these rules for the draft:

• Your draft should contain at least 4 sections: an introduction; a body where you should include background information, an explanation of why you decided to do this case study, and a presentation of your main findings; a conclusion where you present data; and references.
• In the introduction, you should set the pace very clearly. You can even raise a question or quote someone you interviewed in the research phase. It must provide adequate background information on the topic. The background may include analyses of previous studies on your topic. Include the aim of your case here as well. Think of it as a thesis statement. The aim must describe the purpose of your work—presenting the issues that you want to tackle. Include background information, such as photos or videos you used when doing the research.
• Describe your unique research process, whether it was through interviews, observations, academic journals, etc. The next point includes providing the results of your research. Tell the audience what you found out. Why is this important, and what could be learned from it? Discuss the real implications of the problem and its significance in the world.
• Include quotes and data (such as findings, percentages, and awards). This will add a personal touch and better credibility to the case you present. Explain what results you find during your interviews in regards to the problem and how it developed. Also, write about solutions which have already been proposed by other people who have already written about this case.
• At the end of your case study, you should offer possible solutions, but don’t worry about solving them yourself.

Use Data to Illustrate Key Points in Your Case Study

Even though your case study is a story, it should be based on evidence. Use as much data as possible to illustrate your point. Without the right data, your case study may appear weak and the readers may not be able to relate to your issue as much as they should. Let's see the examples from essay writing service :

‍ With data: Alcoholism is affecting more than 14 million people in the USA, which makes it the third most common mental illness there. Without data: A lot of people suffer from alcoholism in the United States.

Try to include as many credible sources as possible. You may have terms or sources that could be hard for other cultures to understand. If this is the case, you should include them in the appendix or Notes for the Instructor or Professor.

Finalizing the Draft: Checklist

After you finish drafting your case study, polish it up by answering these ‘ask yourself’ questions and think about how to end your case study:

• Check that you follow the correct case study format, also in regards to text formatting.
• Check that your work is consistent with its referencing and citation style.
• Micro-editing — check for grammar and spelling issues.
• Macro-editing — does ‘the big picture’ come across to the reader? Is there enough raw data, such as real-life examples or personal experiences? Have you made your data collection process completely transparent? Does your analysis provide a clear conclusion, allowing for further research and practice?

Problems to avoid:

• Overgeneralization – Do not go into further research that deviates from the main problem.
• Failure to Document Limitations – Just as you have to clearly state the limitations of a general research study, you must describe the specific limitations inherent in the subject of analysis.
• Failure to Extrapolate All Possible Implications – Just as you don't want to over-generalize from your case study findings, you also have to be thorough in the consideration of all possible outcomes or recommendations derived from your findings.

How to Create a Title Page and Cite a Case Study

Let's see how to create an awesome title page.

Your title page depends on the prescribed citation format. The title page should include:

• A title that attracts some attention and describes your study
• The title should have the words “case study” in it
• The title should range between 5-9 words in length
• Your name and contact information
• Your finished paper should be only 500 to 1,500 words in length.With this type of assignment, write effectively and avoid fluff

Here is a template for the APA and MLA format title page:

There are some cases when you need to cite someone else's study in your own one – therefore, you need to master how to cite a case study. A case study is like a research paper when it comes to citations. You can cite it like you cite a book, depending on what style you need.

Citation Example in MLA ‍ Hill, Linda, Tarun Khanna, and Emily A. Stecker. HCL Technologies. Boston: Harvard Business Publishing, 2008. Print.

Citation Example in APA ‍ Hill, L., Khanna, T., & Stecker, E. A. (2008). HCL Technologies. Boston: Harvard Business Publishing.

Citation Example in Chicago Hill, Linda, Tarun Khanna, and Emily A. Stecker. HCL Technologies.

Case Study Examples

To give you an idea of a professional case study example, we gathered and linked some below.

Eastman Kodak Case Study

Case Study Example: Audi Trains Mexican Autoworkers in Germany

To conclude, a case study is one of the best methods of getting an overview of what happened to a person, a group, or a situation in practice. It allows you to have an in-depth glance at the real-life problems that businesses, healthcare industry, criminal justice, etc. may face. This insight helps us look at such situations in a different light. This is because we see scenarios that we otherwise would not, without necessarily being there. If you need custom essays , try our research paper writing services .

Get Help Form Qualified Writers

Crafting a case study is not easy. You might want to write one of high quality, but you don’t have the time or expertise. If you’re having trouble with your case study, help with essay request - we'll help. EssayPro writers have read and written countless case studies and are experts in endless disciplines. Request essay writing, editing, or proofreading assistance from our custom case study writing service , and all of your worries will be gone.

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What Is A Case Study?

How to cite a case study in apa, how to write a case study, related articles.

How to Write a Case Study: Bookmarkable Guide & Template

Published: November 30, 2023

Earning the trust of prospective customers can be a struggle. Before you can even begin to expect to earn their business, you need to demonstrate your ability to deliver on what your product or service promises.

Sure, you could say that you're great at X or that you're way ahead of the competition when it comes to Y. But at the end of the day, what you really need to win new business is cold, hard proof.

One of the best ways to prove your worth is through a compelling case study. In fact, HubSpot’s 2020 State of Marketing report found that case studies are so compelling that they are the fifth most commonly used type of content used by marketers.

Below, I'll walk you through what a case study is, how to prepare for writing one, what you need to include in it, and how it can be an effective tactic. To jump to different areas of this post, click on the links below to automatically scroll.

Case Study Definition

Case study templates, how to write a case study.

• How to Format a Case Study

Business Case Study Examples

A case study is a specific challenge a business has faced, and the solution they've chosen to solve it. Case studies can vary greatly in length and focus on several details related to the initial challenge and applied solution, and can be presented in various forms like a video, white paper, blog post, etc.

In professional settings, it's common for a case study to tell the story of a successful business partnership between a vendor and a client. Perhaps the success you're highlighting is in the number of leads your client generated, customers closed, or revenue gained. Any one of these key performance indicators (KPIs) are examples of your company's services in action.

When done correctly, these examples of your work can chronicle the positive impact your business has on existing or previous customers and help you attract new clients.

Free Case Study Templates

Showcase your company's success using these three free case study templates.

• Data-Driven Case Study Template
• Product-Specific Case Study Template
• General Case Study Template

You're all set!

Click this link to access this resource at any time.

Why write a case study? 

I know, you’re thinking “ Okay, but why do I need to write one of these? ” The truth is that while case studies are a huge undertaking, they are powerful marketing tools that allow you to demonstrate the value of your product to potential customers using real-world examples. Here are a few reasons why you should write case studies. 

1. Explain Complex Topics or Concepts

Case studies give you the space to break down complex concepts, ideas, and strategies and show how they can be applied in a practical way. You can use real-world examples, like an existing client, and use their story to create a compelling narrative that shows how your product solved their issue and how those strategies can be repeated to help other customers get similar successful results.  

2. Show Expertise

Case studies are a great way to demonstrate your knowledge and expertise on a given topic or industry. This is where you get the opportunity to show off your problem-solving skills and how you’ve generated successful outcomes for clients you’ve worked with. 

3. Build Trust and Credibility

In addition to showing off the attributes above, case studies are an excellent way to build credibility. They’re often filled with data and thoroughly researched, which shows readers you’ve done your homework. They can have confidence in the solutions you’ve presented because they’ve read through as you’ve explained the problem and outlined step-by-step what it took to solve it. All of these elements working together enable you to build trust with potential customers.

4. Create Social Proof

Using existing clients that have seen success working with your brand builds social proof . People are more likely to choose your brand if they know that others have found success working with you. Case studies do just that — putting your success on display for potential customers to see. 

All of these attributes work together to help you gain more clients. Plus you can even use quotes from customers featured in these studies and repurpose them in other marketing content. Now that you know more about the benefits of producing a case study, let’s check out how long these documents should be. 

How long should a case study be?

The length of a case study will vary depending on the complexity of the project or topic discussed. However, as a general guideline, case studies typically range from 500 to 1,500 words. 

Whatever length you choose, it should provide a clear understanding of the challenge, the solution you implemented, and the results achieved. This may be easier said than done, but it's important to strike a balance between providing enough detail to make the case study informative and concise enough to keep the reader's interest.

The primary goal here is to effectively communicate the key points and takeaways of the case study. It’s worth noting that this shouldn’t be a wall of text. Use headings, subheadings, bullet points, charts, and other graphics to break up the content and make it more scannable for readers. We’ve also seen brands incorporate video elements into case studies listed on their site for a more engaging experience. 

Ultimately, the length of your case study should be determined by the amount of information necessary to convey the story and its impact without becoming too long. Next, let’s look at some templates to take the guesswork out of creating one. 

To help you arm your prospects with information they can trust, we've put together a step-by-step guide on how to create effective case studies for your business with free case study templates for creating your own.

Tell us a little about yourself below to gain access today:

And to give you more options, we’ll highlight some useful templates that serve different needs. But remember, there are endless possibilities when it comes to demonstrating the work your business has done.

1. General Case Study Template

Do you have a specific product or service that you’re trying to sell, but not enough reviews or success stories? This Product Specific case study template will help.

This template relies less on metrics, and more on highlighting the customer’s experience and satisfaction. As you follow the template instructions, you’ll be prompted to speak more about the benefits of the specific product, rather than your team’s process for working with the customer.

4. Bold Social Media Business Case Study Template

You can find templates that represent different niches, industries, or strategies that your business has found success in — like a bold social media business case study template.

In this template, you can tell the story of how your social media marketing strategy has helped you or your client through collaboration or sale of your service. Customize it to reflect the different marketing channels used in your business and show off how well your business has been able to boost traffic, engagement, follows, and more.

5. Lead Generation Business Case Study Template

It’s important to note that not every case study has to be the product of a sale or customer story, sometimes they can be informative lessons that your own business has experienced. A great example of this is the Lead Generation Business case study template.

If you’re looking to share operational successes regarding how your team has improved processes or content, you should include the stories of different team members involved, how the solution was found, and how it has made a difference in the work your business does.

Now that we’ve discussed different templates and ideas for how to use them, let’s break down how to create your own case study with one.

• Get started with case study templates.
• Determine the case study's objective.
• Establish a case study medium.
• Find the right case study candidate.
• Contact your candidate for permission to write about them.
• Ensure you have all the resources you need to proceed once you get a response.
• Download a case study email template.
• Define the process you want to follow with the client.
• Ensure you're asking the right questions.
• Layout your case study format.
• Publish and promote your case study.

1. Get started with case study templates.

Telling your customer's story is a delicate process — you need to highlight their success while naturally incorporating your business into their story.

If you're just getting started with case studies, we recommend you download HubSpot's Case Study Templates we mentioned before to kickstart the process.

2. Determine the case study's objective.

All business case studies are designed to demonstrate the value of your services, but they can focus on several different client objectives.

Your first step when writing a case study is to determine the objective or goal of the subject you're featuring. In other words, what will the client have succeeded in doing by the end of the piece?

The client objective you focus on will depend on what you want to prove to your future customers as a result of publishing this case study.

Your case study can focus on one of the following client objectives:

• Complying with government regulation
• Lowering business costs
• Becoming profitable
• Generating more leads
• Closing on more customers
• Generating more revenue
• Expanding into a new market
• Becoming more sustainable or energy-efficient

3. Establish a case study medium.

Next, you'll determine the medium in which you'll create the case study. In other words, how will you tell this story?

Case studies don't have to be simple, written one-pagers. Using different media in your case study can allow you to promote your final piece on different channels. For example, while a written case study might just live on your website and get featured in a Facebook post, you can post an infographic case study on Pinterest and a video case study on your YouTube channel.

Here are some different case study mediums to consider:

Written Case Study

Consider writing this case study in the form of an ebook and converting it to a downloadable PDF. Then, gate the PDF behind a landing page and form for readers to fill out before downloading the piece, allowing this case study to generate leads for your business.

Video Case Study

Plan on meeting with the client and shooting an interview. Seeing the subject, in person, talk about the service you provided them can go a long way in the eyes of your potential customers.

Infographic Case Study

Use the long, vertical format of an infographic to tell your success story from top to bottom. As you progress down the infographic, emphasize major KPIs using bigger text and charts that show the successes your client has had since working with you.

Podcast Case Study

Podcasts are a platform for you to have a candid conversation with your client. This type of case study can sound more real and human to your audience — they'll know the partnership between you and your client was a genuine success.

4. Find the right case study candidate.

Writing about your previous projects requires more than picking a client and telling a story. You need permission, quotes, and a plan. To start, here are a few things to look for in potential candidates.

Product Knowledge

It helps to select a customer who's well-versed in the logistics of your product or service. That way, he or she can better speak to the value of what you offer in a way that makes sense for future customers.

Remarkable Results

Clients that have seen the best results are going to make the strongest case studies. If their own businesses have seen an exemplary ROI from your product or service, they're more likely to convey the enthusiasm that you want prospects to feel, too.

One part of this step is to choose clients who have experienced unexpected success from your product or service. When you've provided non-traditional customers — in industries that you don't usually work with, for example — with positive results, it can help to remove doubts from prospects.

Recognizable Names

While small companies can have powerful stories, bigger or more notable brands tend to lend credibility to your own. In fact, 89% of consumers say they'll buy from a brand they already recognize over a competitor, especially if they already follow them on social media.

Customers that came to you after working with a competitor help highlight your competitive advantage and might even sway decisions in your favor.

5. Contact your candidate for permission to write about them.

To get the case study candidate involved, you have to set the stage for clear and open communication. That means outlining expectations and a timeline right away — not having those is one of the biggest culprits in delayed case study creation.

Most importantly at this point, however, is getting your subject's approval. When first reaching out to your case study candidate, provide them with the case study's objective and format — both of which you will have come up with in the first two steps above.

To get this initial permission from your subject, put yourself in their shoes — what would they want out of this case study? Although you're writing this for your own company's benefit, your subject is far more interested in the benefit it has for them.

Benefits to Offer Your Case Study Candidate

Here are four potential benefits you can promise your case study candidate to gain their approval.

Brand Exposure

Explain to your subject to whom this case study will be exposed, and how this exposure can help increase their brand awareness both in and beyond their own industry. In the B2B sector, brand awareness can be hard to collect outside one's own market, making case studies particularly useful to a client looking to expand their name's reach.

Employee Exposure

Allow your subject to provide quotes with credits back to specific employees. When this is an option for them, their brand isn't the only thing expanding its reach — their employees can get their name out there, too. This presents your subject with networking and career development opportunities they might not have otherwise.

Product Discount

This is a more tangible incentive you can offer your case study candidate, especially if they're a current customer of yours. If they agree to be your subject, offer them a product discount — or a free trial of another product — as a thank-you for their help creating your case study.

Backlinks and Website Traffic

Here's a benefit that is sure to resonate with your subject's marketing team: If you publish your case study on your website, and your study links back to your subject's website — known as a "backlink" — this small gesture can give them website traffic from visitors who click through to your subject's website.

Additionally, a backlink from you increases your subject's page authority in the eyes of Google. This helps them rank more highly in search engine results and collect traffic from readers who are already looking for information about their industry.

6. Ensure you have all the resources you need to proceed once you get a response.

So you know what you’re going to offer your candidate, it’s time that you prepare the resources needed for if and when they agree to participate, like a case study release form and success story letter.

Let's break those two down.

Case Study Release Form

This document can vary, depending on factors like the size of your business, the nature of your work, and what you intend to do with the case studies once they are completed. That said, you should typically aim to include the following in the Case Study Release Form:

• A clear explanation of why you are creating this case study and how it will be used.
• A statement defining the information and potentially trademarked information you expect to include about the company — things like names, logos, job titles, and pictures.
• An explanation of what you expect from the participant, beyond the completion of the case study. For example, is this customer willing to act as a reference or share feedback, and do you have permission to pass contact information along for these purposes?
• A note about compensation.

Success Story Letter

As noted in the sample email, this document serves as an outline for the entire case study process. Other than a brief explanation of how the customer will benefit from case study participation, you'll want to be sure to define the following steps in the Success Story Letter.

7. Download a case study email template.

While you gathered your resources, your candidate has gotten time to read over the proposal. When your candidate approves of your case study, it's time to send them a release form.

A case study release form tells you what you'll need from your chosen subject, like permission to use any brand names and share the project information publicly. Kick-off this process with an email that runs through exactly what they can expect from you, as well as what you need from them. To give you an idea of what that might look like, check out this sample email:

8. Define the process you want to follow with the client.

Before you can begin the case study, you have to have a clear outline of the case study process with your client. An example of an effective outline would include the following information.

The Acceptance

First, you'll need to receive internal approval from the company's marketing team. Once approved, the Release Form should be signed and returned to you. It's also a good time to determine a timeline that meets the needs and capabilities of both teams.

The Questionnaire

To ensure that you have a productive interview — which is one of the best ways to collect information for the case study — you'll want to ask the participant to complete a questionnaire before this conversation. That will provide your team with the necessary foundation to organize the interview, and get the most out of it.

The Interview

Once the questionnaire is completed, someone on your team should reach out to the participant to schedule a 30- to 60-minute interview, which should include a series of custom questions related to the customer's experience with your product or service.

The Draft Review

After the case study is composed, you'll want to send a draft to the customer, allowing an opportunity to give you feedback and edits.

The Final Approval

Once any necessary edits are completed, send a revised copy of the case study to the customer for final approval.

Once the case study goes live — on your website or elsewhere — it's best to contact the customer with a link to the page where the case study lives. Don't be afraid to ask your participants to share these links with their own networks, as it not only demonstrates your ability to deliver positive results and impressive growth, as well.

9. Ensure you're asking the right questions.

Before you execute the questionnaire and actual interview, make sure you're setting yourself up for success. A strong case study results from being prepared to ask the right questions. What do those look like? Here are a few examples to get you started:

• What are your goals?
• What challenges were you experiencing before purchasing our product or service?
• What made our product or service stand out against our competitors?
• What did your decision-making process look like?
• How have you benefited from using our product or service? (Where applicable, always ask for data.)

Keep in mind that the questionnaire is designed to help you gain insights into what sort of strong, success-focused questions to ask during the actual interview. And once you get to that stage, we recommend that you follow the "Golden Rule of Interviewing." Sounds fancy, right? It's actually quite simple — ask open-ended questions.

If you're looking to craft a compelling story, "yes" or "no" answers won't provide the details you need. Focus on questions that invite elaboration, such as, "Can you describe ...?" or, "Tell me about ..."

In terms of the interview structure, we recommend categorizing the questions and flowing them into six specific sections that will mirror a successful case study format. Combined, they'll allow you to gather enough information to put together a rich, comprehensive study.

Open with the customer's business.

The goal of this section is to generate a better understanding of the company's current challenges and goals, and how they fit into the landscape of their industry. Sample questions might include:

• How long have you been in business?
• How many employees do you have?
• What are some of the objectives of your department at this time?

Cite a problem or pain point.

To tell a compelling story, you need context. That helps match the customer's need with your solution. Sample questions might include:

• What challenges and objectives led you to look for a solution?
• What might have happened if you did not identify a solution?
• Did you explore other solutions before this that did not work out? If so, what happened?

Discuss the decision process.

Exploring how the customer decided to work with you helps to guide potential customers through their own decision-making processes. Sample questions might include:

• How did you hear about our product or service?
• Who was involved in the selection process?
• What was most important to you when evaluating your options?

Explain how a solution was implemented.

The focus here should be placed on the customer's experience during the onboarding process. Sample questions might include:

• How long did it take to get up and running?
• Did that meet your expectations?
• Who was involved in the process?

Explain how the solution works.

The goal of this section is to better understand how the customer is using your product or service. Sample questions might include:

• Is there a particular aspect of the product or service that you rely on most?
• Who is using the product or service?

End with the results.

In this section, you want to uncover impressive measurable outcomes — the more numbers, the better. Sample questions might include:

• How is the product or service helping you save time and increase productivity?
• In what ways does that enhance your competitive advantage?
• How much have you increased metrics X, Y, and Z?

10. Lay out your case study format.

When it comes time to take all of the information you've collected and actually turn it into something, it's easy to feel overwhelmed. Where should you start? What should you include? What's the best way to structure it?

To help you get a handle on this step, it's important to first understand that there is no one-size-fits-all when it comes to the ways you can present a case study. They can be very visual, which you'll see in some of the examples we've included below, and can sometimes be communicated mostly through video or photos, with a bit of accompanying text.

Here are the sections we suggest, which we'll cover in more detail down below:

• Title: Keep it short. Develop a succinct but interesting project name you can give the work you did with your subject.
• Subtitle: Use this copy to briefly elaborate on the accomplishment. What was done? The case study itself will explain how you got there.
• Executive Summary : A 2-4 sentence summary of the entire story. You'll want to follow it with 2-3 bullet points that display metrics showcasing success.
• About the Subject: An introduction to the person or company you served, which can be pulled from a LinkedIn Business profile or client website.
• Challenges and Objectives: A 2-3 paragraph description of the customer's challenges, before using your product or service. This section should also include the goals or objectives the customer set out to achieve.
• How Product/Service Helped: A 2-3 paragraph section that describes how your product or service provided a solution to their problem.
• Results: A 2-3 paragraph testimonial that proves how your product or service specifically benefited the person or company and helped achieve its goals. Include numbers to quantify your contributions.
• Supporting Visuals or Quotes: Pick one or two powerful quotes that you would feature at the bottom of the sections above, as well as a visual that supports the story you are telling.
• Future Plans: Everyone likes an epilogue. Comment on what's ahead for your case study subject, whether or not those plans involve you.
• Call to Action (CTA): Not every case study needs a CTA, but putting a passive one at the end of your case study can encourage your readers to take an action on your website after learning about the work you've done.

When laying out your case study, focus on conveying the information you've gathered in the most clear and concise way possible. Make it easy to scan and comprehend, and be sure to provide an attractive call-to-action at the bottom — that should provide readers an opportunity to learn more about your product or service.

11. Publish and promote your case study.

Once you've completed your case study, it's time to publish and promote it. Some case study formats have pretty obvious promotional outlets — a video case study can go on YouTube, just as an infographic case study can go on Pinterest.

But there are still other ways to publish and promote your case study. Here are a couple of ideas:

Lead Gen in a Blog Post

As stated earlier in this article, written case studies make terrific lead-generators if you convert them into a downloadable format, like a PDF. To generate leads from your case study, consider writing a blog post that tells an abbreviated story of your client's success and asking readers to fill out a form with their name and email address if they'd like to read the rest in your PDF.

Then, promote this blog post on social media, through a Facebook post or a tweet.

Published as a Page on Your Website

As a growing business, you might need to display your case study out in the open to gain the trust of your target audience.

Rather than gating it behind a landing page, publish your case study to its own page on your website, and direct people here from your homepage with a "Case Studies" or "Testimonials" button along your homepage's top navigation bar.

Format for a Case Study

The traditional case study format includes the following parts: a title and subtitle, a client profile, a summary of the customer’s challenges and objectives, an account of how your solution helped, and a description of the results. You might also want to include supporting visuals and quotes, future plans, and calls-to-action.

Image Source

The title is one of the most important parts of your case study. It should draw readers in while succinctly describing the potential benefits of working with your company. To that end, your title should:

• State the name of your custome r. Right away, the reader must learn which company used your products and services. This is especially important if your customer has a recognizable brand. If you work with individuals and not companies, you may omit the name and go with professional titles: “A Marketer…”, “A CFO…”, and so forth.
• State which product your customer used . Even if you only offer one product or service, or if your company name is the same as your product name, you should still include the name of your solution. That way, readers who are not familiar with your business can become aware of what you sell.
• Allude to the results achieved . You don’t necessarily need to provide hard numbers, but the title needs to represent the benefits, quickly. That way, if a reader doesn’t stay to read, they can walk away with the most essential information: Your product works.

The example above, “Crunch Fitness Increases Leads and Signups With HubSpot,” achieves all three — without being wordy. Keeping your title short and sweet is also essential.

2. Subtitle

Your subtitle is another essential part of your case study — don’t skip it, even if you think you’ve done the work with the title. In this section, include a brief summary of the challenges your customer was facing before they began to use your products and services. Then, drive the point home by reiterating the benefits your customer experienced by working with you.

The above example reads:

“Crunch Fitness was franchising rapidly when COVID-19 forced fitness clubs around the world to close their doors. But the company stayed agile by using HubSpot to increase leads and free trial signups.”

We like that the case study team expressed the urgency of the problem — opening more locations in the midst of a pandemic — and placed the focus on the customer’s ability to stay agile.

3. Executive Summary

The executive summary should provide a snapshot of your customer, their challenges, and the benefits they enjoyed from working with you. Think it’s too much? Think again — the purpose of the case study is to emphasize, again and again, how well your product works.

The good news is that depending on your design, the executive summary can be mixed with the subtitle or with the “About the Company” section. Many times, this section doesn’t need an explicit “Executive Summary” subheading. You do need, however, to provide a convenient snapshot for readers to scan.

In the above example, ADP included information about its customer in a scannable bullet-point format, then provided two sections: “Business Challenge” and “How ADP Helped.” We love how simple and easy the format is to follow for those who are unfamiliar with ADP or its typical customer.

4. About the Company

Readers need to know and understand who your customer is. This is important for several reasons: It helps your reader potentially relate to your customer, it defines your ideal client profile (which is essential to deter poor-fit prospects who might have reached out without knowing they were a poor fit), and it gives your customer an indirect boon by subtly promoting their products and services.

Feel free to keep this section as simple as possible. You can simply copy and paste information from the company’s LinkedIn, use a quote directly from your customer, or take a more creative storytelling approach.

In the above example, HubSpot included one paragraph of description for Crunch Fitness and a few bullet points. Below, ADP tells the story of its customer using an engaging, personable technique that effectively draws readers in.

5. Challenges and Objectives

The challenges and objectives section of your case study is the place to lay out, in detail, the difficulties your customer faced prior to working with you — and what they hoped to achieve when they enlisted your help.

In this section, you can be as brief or as descriptive as you’d like, but remember: Stress the urgency of the situation. Don’t understate how much your customer needed your solution (but don’t exaggerate and lie, either). Provide contextual information as necessary. For instance, the pandemic and societal factors may have contributed to the urgency of the need.

Take the above example from design consultancy IDEO:

“Educational opportunities for adults have become difficult to access in the United States, just when they’re needed most. To counter this trend, IDEO helped the city of South Bend and the Drucker Institute launch Bendable, a community-powered platform that connects people with opportunities to learn with and from each other.”

We love how IDEO mentions the difficulties the United States faces at large, the efforts its customer is taking to address these issues, and the steps IDEO took to help.

6. How Product/Service Helped

This is where you get your product or service to shine. Cover the specific benefits that your customer enjoyed and the features they gleaned the most use out of. You can also go into detail about how you worked with and for your customer. Maybe you met several times before choosing the right solution, or you consulted with external agencies to create the best package for them.

Whatever the case may be, try to illustrate how easy and pain-free it is to work with the representatives at your company. After all, potential customers aren’t looking to just purchase a product. They’re looking for a dependable provider that will strive to exceed their expectations.

In the above example, IDEO describes how it partnered with research institutes and spoke with learners to create Bendable, a free educational platform. We love how it shows its proactivity and thoroughness. It makes potential customers feel that IDEO might do something similar for them.

The results are essential, and the best part is that you don’t need to write the entirety of the case study before sharing them. Like HubSpot, IDEO, and ADP, you can include the results right below the subtitle or executive summary. Use data and numbers to substantiate the success of your efforts, but if you don’t have numbers, you can provide quotes from your customers.

We can’t overstate the importance of the results. In fact, if you wanted to create a short case study, you could include your title, challenge, solution (how your product helped), and result.

8. Supporting Visuals or Quotes

Let your customer speak for themselves by including quotes from the representatives who directly interfaced with your company.

Visuals can also help, even if they’re stock images. On one side, they can help you convey your customer’s industry, and on the other, they can indirectly convey your successes. For instance, a picture of a happy professional — even if they’re not your customer — will communicate that your product can lead to a happy client.

In this example from IDEO, we see a man standing in a boat. IDEO’s customer is neither the man pictured nor the manufacturer of the boat, but rather Conservation International, an environmental organization. This imagery provides a visually pleasing pattern interrupt to the page, while still conveying what the case study is about.

9. Future Plans

This is optional, but including future plans can help you close on a more positive, personable note than if you were to simply include a quote or the results. In this space, you can show that your product will remain in your customer’s tech stack for years to come, or that your services will continue to be instrumental to your customer’s success.

Alternatively, if you work only on time-bound projects, you can allude to the positive impact your customer will continue to see, even after years of the end of the contract.

10. Call to Action (CTA)

Not every case study needs a CTA, but we’d still encourage it. Putting one at the end of your case study will encourage your readers to take an action on your website after learning about the work you've done.

It will also make it easier for them to reach out, if they’re ready to start immediately. You don’t want to lose business just because they have to scroll all the way back up to reach out to your team.

To help you visualize this case study outline, check out the case study template below, which can also be downloaded here .

You drove the results, made the connection, set the expectations, used the questionnaire to conduct a successful interview, and boiled down your findings into a compelling story. And after all of that, you're left with a little piece of sales enabling gold — a case study.

To show you what a well-executed final product looks like, have a look at some of these marketing case study examples.

1. "Shopify Uses HubSpot CRM to Transform High Volume Sales Organization," by HubSpot

What's interesting about this case study is the way it leads with the customer. This reflects a major HubSpot value, which is to always solve for the customer first. The copy leads with a brief description of why Shopify uses HubSpot and is accompanied by a short video and some basic statistics on the company.

Notice that this case study uses mixed media. Yes, there is a short video, but it's elaborated upon in the additional text on the page. So, while case studies can use one or the other, don't be afraid to combine written copy with visuals to emphasize the project's success.

2. "New England Journal of Medicine," by Corey McPherson Nash

When branding and design studio Corey McPherson Nash showcases its work, it makes sense for it to be visual — after all, that's what they do. So in building the case study for the studio's work on the New England Journal of Medicine's integrated advertising campaign — a project that included the goal of promoting the client's digital presence — Corey McPherson Nash showed its audience what it did, rather than purely telling it.

Notice that the case study does include some light written copy — which includes the major points we've suggested — but lets the visuals do the talking, allowing users to really absorb the studio's services.

3. "Designing the Future of Urban Farming," by IDEO

Here's a design company that knows how to lead with simplicity in its case studies. As soon as the visitor arrives at the page, he or she is greeted with a big, bold photo, and two very simple columns of text — "The Challenge" and "The Outcome."

Immediately, IDEO has communicated two of the case study's major pillars. And while that's great — the company created a solution for vertical farming startup INFARM's challenge — it doesn't stop there. As the user scrolls down, those pillars are elaborated upon with comprehensive (but not overwhelming) copy that outlines what that process looked like, replete with quotes and additional visuals.

4. "Secure Wi-Fi Wins Big for Tournament," by WatchGuard

Then, there are the cases when visuals can tell almost the entire story — when executed correctly. Network security provider WatchGuard can do that through this video, which tells the story of how its services enhanced the attendee and vendor experience at the Windmill Ultimate Frisbee tournament.

5. Rock and Roll Hall of Fame Boosts Social Media Engagement and Brand Awareness with HubSpot

In the case study above , HubSpot uses photos, videos, screenshots, and helpful stats to tell the story of how the Rock and Roll Hall of Fame used the bot, CRM, and social media tools to gain brand awareness.

6. Small Desk Plant Business Ups Sales by 30% With Trello

This case study from Trello is straightforward and easy to understand. It begins by explaining the background of the company that decided to use it, what its goals were, and how it planned to use Trello to help them.

It then goes on to discuss how the software was implemented and what tasks and teams benefited from it. Towards the end, it explains the sales results that came from implementing the software and includes quotes from decision-makers at the company that implemented it.

7. Facebook's Mercedes Benz Success Story

Facebook's Success Stories page hosts a number of well-designed and easy-to-understand case studies that visually and editorially get to the bottom line quickly.

Each study begins with key stats that draw the reader in. Then it's organized by highlighting a problem or goal in the introduction, the process the company took to reach its goals, and the results. Then, in the end, Facebook notes the tools used in the case study.

Showcasing Your Work

You work hard at what you do. Now, it's time to show it to the world — and, perhaps more important, to potential customers. Before you show off the projects that make you the proudest, we hope you follow these important steps that will help you effectively communicate that work and leave all parties feeling good about it.

Editor's Note: This blog post was originally published in February 2017 but was updated for comprehensiveness and freshness in July 2021.

Don't forget to share this post!

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Writing a Case Study

What is a case study?

A Case study is: 

• An in-depth research design that primarily uses a qualitative methodology but sometimes​​ includes quantitative methodology.
• Used to examine an identifiable problem confirmed through research.
• Used to investigate an individual, group of people, organization, or event.
• Used to mostly answer "how" and "why" questions.

What are the different types of case studies?

Note: These are the primary case studies. As you continue to research and learn

about case studies you will begin to find a robust list of different types. 

Who are your case study participants?

What is triangulation ? 

Validity and credibility are an essential part of the case study. Therefore, the researcher should include triangulation to ensure trustworthiness while accurately reflecting what the researcher seeks to investigate.

How to write a Case Study?

When developing a case study, there are different ways you could present the information, but remember to include the five parts for your case study.

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What Is a Case Study?

Weighing the pros and cons of this method of research

Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

Cara Lustik is a fact-checker and copywriter.

Verywell / Colleen Tighe

• Pros and Cons

What Types of Case Studies Are Out There?

Where do you find data for a case study, how do i write a psychology case study.

A case study is an in-depth study of one person, group, or event. In a case study, nearly every aspect of the subject's life and history is analyzed to seek patterns and causes of behavior. Case studies can be used in many different fields, including psychology, medicine, education, anthropology, political science, and social work.

The point of a case study is to learn as much as possible about an individual or group so that the information can be generalized to many others. Unfortunately, case studies tend to be highly subjective, and it is sometimes difficult to generalize results to a larger population.

While case studies focus on a single individual or group, they follow a format similar to other types of psychology writing. If you are writing a case study, we got you—here are some rules of APA format to reference.  

At a Glance

A case study, or an in-depth study of a person, group, or event, can be a useful research tool when used wisely. In many cases, case studies are best used in situations where it would be difficult or impossible for you to conduct an experiment. They are helpful for looking at unique situations and allow researchers to gather a lot of˜ information about a specific individual or group of people. However, it's important to be cautious of any bias we draw from them as they are highly subjective.

What Are the Benefits and Limitations of Case Studies?

A case study can have its strengths and weaknesses. Researchers must consider these pros and cons before deciding if this type of study is appropriate for their needs.

One of the greatest advantages of a case study is that it allows researchers to investigate things that are often difficult or impossible to replicate in a lab. Some other benefits of a case study:

• Allows researchers to capture information on the 'how,' 'what,' and 'why,' of something that's implemented
• Gives researchers the chance to collect information on why one strategy might be chosen over another
• Permits researchers to develop hypotheses that can be explored in experimental research

On the other hand, a case study can have some drawbacks:

• It cannot necessarily be generalized to the larger population
• Cannot demonstrate cause and effect
• It may not be scientifically rigorous
• It can lead to bias

Researchers may choose to perform a case study if they want to explore a unique or recently discovered phenomenon. Through their insights, researchers develop additional ideas and study questions that might be explored in future studies.

It's important to remember that the insights from case studies cannot be used to determine cause-and-effect relationships between variables. However, case studies may be used to develop hypotheses that can then be addressed in experimental research.

Case Study Examples

There have been a number of notable case studies in the history of psychology. Much of  Freud's work and theories were developed through individual case studies. Some great examples of case studies in psychology include:

• Anna O : Anna O. was a pseudonym of a woman named Bertha Pappenheim, a patient of a physician named Josef Breuer. While she was never a patient of Freud's, Freud and Breuer discussed her case extensively. The woman was experiencing symptoms of a condition that was then known as hysteria and found that talking about her problems helped relieve her symptoms. Her case played an important part in the development of talk therapy as an approach to mental health treatment.
• Phineas Gage : Phineas Gage was a railroad employee who experienced a terrible accident in which an explosion sent a metal rod through his skull, damaging important portions of his brain. Gage recovered from his accident but was left with serious changes in both personality and behavior.
• Genie : Genie was a young girl subjected to horrific abuse and isolation. The case study of Genie allowed researchers to study whether language learning was possible, even after missing critical periods for language development. Her case also served as an example of how scientific research may interfere with treatment and lead to further abuse of vulnerable individuals.

Such cases demonstrate how case research can be used to study things that researchers could not replicate in experimental settings. In Genie's case, her horrific abuse denied her the opportunity to learn a language at critical points in her development.

This is clearly not something researchers could ethically replicate, but conducting a case study on Genie allowed researchers to study phenomena that are otherwise impossible to reproduce.

There are a few different types of case studies that psychologists and other researchers might use:

• Collective case studies : These involve studying a group of individuals. Researchers might study a group of people in a certain setting or look at an entire community. For example, psychologists might explore how access to resources in a community has affected the collective mental well-being of those who live there.
• Descriptive case studies : These involve starting with a descriptive theory. The subjects are then observed, and the information gathered is compared to the pre-existing theory.
• Explanatory case studies : These   are often used to do causal investigations. In other words, researchers are interested in looking at factors that may have caused certain things to occur.
• Exploratory case studies : These are sometimes used as a prelude to further, more in-depth research. This allows researchers to gather more information before developing their research questions and hypotheses .
• Instrumental case studies : These occur when the individual or group allows researchers to understand more than what is initially obvious to observers.
• Intrinsic case studies : This type of case study is when the researcher has a personal interest in the case. Jean Piaget's observations of his own children are good examples of how an intrinsic case study can contribute to the development of a psychological theory.

The three main case study types often used are intrinsic, instrumental, and collective. Intrinsic case studies are useful for learning about unique cases. Instrumental case studies help look at an individual to learn more about a broader issue. A collective case study can be useful for looking at several cases simultaneously.

The type of case study that psychology researchers use depends on the unique characteristics of the situation and the case itself.

There are a number of different sources and methods that researchers can use to gather information about an individual or group. Six major sources that have been identified by researchers are:

• Archival records : Census records, survey records, and name lists are examples of archival records.
• Direct observation : This strategy involves observing the subject, often in a natural setting . While an individual observer is sometimes used, it is more common to utilize a group of observers.
• Documents : Letters, newspaper articles, administrative records, etc., are the types of documents often used as sources.
• Interviews : Interviews are one of the most important methods for gathering information in case studies. An interview can involve structured survey questions or more open-ended questions.
• Participant observation : When the researcher serves as a participant in events and observes the actions and outcomes, it is called participant observation.
• Physical artifacts : Tools, objects, instruments, and other artifacts are often observed during a direct observation of the subject.

If you have been directed to write a case study for a psychology course, be sure to check with your instructor for any specific guidelines you need to follow. If you are writing your case study for a professional publication, check with the publisher for their specific guidelines for submitting a case study.

Here is a general outline of what should be included in a case study.

Section 1: A Case History

This section will have the following structure and content:

Background information : The first section of your paper will present your client's background. Include factors such as age, gender, work, health status, family mental health history, family and social relationships, drug and alcohol history, life difficulties, goals, and coping skills and weaknesses.

Description of the presenting problem : In the next section of your case study, you will describe the problem or symptoms that the client presented with.

Describe any physical, emotional, or sensory symptoms reported by the client. Thoughts, feelings, and perceptions related to the symptoms should also be noted. Any screening or diagnostic assessments that are used should also be described in detail and all scores reported.

Your diagnosis : Provide your diagnosis and give the appropriate Diagnostic and Statistical Manual code. Explain how you reached your diagnosis, how the client's symptoms fit the diagnostic criteria for the disorder(s), or any possible difficulties in reaching a diagnosis.

Section 2: Treatment Plan

This portion of the paper will address the chosen treatment for the condition. This might also include the theoretical basis for the chosen treatment or any other evidence that might exist to support why this approach was chosen.

• Cognitive behavioral approach : Explain how a cognitive behavioral therapist would approach treatment. Offer background information on cognitive behavioral therapy and describe the treatment sessions, client response, and outcome of this type of treatment. Make note of any difficulties or successes encountered by your client during treatment.
• Humanistic approach : Describe a humanistic approach that could be used to treat your client, such as client-centered therapy . Provide information on the type of treatment you chose, the client's reaction to the treatment, and the end result of this approach. Explain why the treatment was successful or unsuccessful.
• Psychoanalytic approach : Describe how a psychoanalytic therapist would view the client's problem. Provide some background on the psychoanalytic approach and cite relevant references. Explain how psychoanalytic therapy would be used to treat the client, how the client would respond to therapy, and the effectiveness of this treatment approach.
• Pharmacological approach : If treatment primarily involves the use of medications, explain which medications were used and why. Provide background on the effectiveness of these medications and how monotherapy may compare with an approach that combines medications with therapy or other treatments.

This section of a case study should also include information about the treatment goals, process, and outcomes.

When you are writing a case study, you should also include a section where you discuss the case study itself, including the strengths and limitiations of the study. You should note how the findings of your case study might support previous research. 

In your discussion section, you should also describe some of the implications of your case study. What ideas or findings might require further exploration? How might researchers go about exploring some of these questions in additional studies?

Need More Tips?

Here are a few additional pointers to keep in mind when formatting your case study:

• Never refer to the subject of your case study as "the client." Instead, use their name or a pseudonym.
• Read examples of case studies to gain an idea about the style and format.
• Remember to use APA format when citing references .

Crowe S, Cresswell K, Robertson A, Huby G, Avery A, Sheikh A. The case study approach .  BMC Med Res Methodol . 2011;11:100.

Crowe S, Cresswell K, Robertson A, Huby G, Avery A, Sheikh A. The case study approach . BMC Med Res Methodol . 2011 Jun 27;11:100. doi:10.1186/1471-2288-11-100

Gagnon, Yves-Chantal.  The Case Study as Research Method: A Practical Handbook . Canada, Chicago Review Press Incorporated DBA Independent Pub Group, 2010.

Yin, Robert K. Case Study Research and Applications: Design and Methods . United States, SAGE Publications, 2017.

By Kendra Cherry, MSEd Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

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The ultimate guide to writing a good case study

Your prospect has done their research. They’ve made a list of requirements. They’ve compared several possible solutions (including yours). They’ve been to your website and had conversations with a salesperson. And they’ve narrowed their search down to your product and your competitor. On paper, both products look similar. But your prospect is still on the fence.

So what’s it going to take for them to go with yours? 

Probably something that convinces them that your product gets results. 

Enter the case study—tiebreaker extraordinaire, and your best friend. 

In this post, we’ll look at:

• What a case study is and why you need one
• 3 elements of a good case study
• How to prep for a case study
• 5 steps to writing your case study
• Tips for making a good case study great
• 5 real-life case study examples

🔍  Are you looking for some case study examples? Check out this free eBook housing five case study examples.

📙 Get the eBook

What is a case study and why should you create one?

A case study is basically a document (it can be a video too) that outlines how a customer used your product to overcome a problem. It’s real-world proof that your product works and gets results.

If your product or service has helped customers get great results, a case study will help you showcase those results to your future customers. They’re an excellent way to attract more business, and can mean the difference between a lost opportunity and a really good end-of-quarter. 

What makes a good case study? 

First, it’s helpful to highlight what makes case studies bad: most are painfully boring. What they have in research and detail, they lack in a cohesive, consumable story. They list numbers and contain data, but the reader isn’t sure what it all means or why it’s relevant to their problem. They end up existing as technical documents that do little to persuade or excite anyone—and that’s unfortunate because they have the potential to be a powerful sales tool that can help you close big deals in the decision-making phase. 

So how do you write a good one, then? Here are three characteristics every good case study should have:

It’s digestible

There’s no hard rule on how long a case study should be. But it’s always a good idea to ask “ How short can we make it? ” A good case study avoids the unnecessary minutiae, knows what it’s trying to say, and communicates it quickly and without ambiguity. With a few exceptions, effective case studies are concise and, clear. 

It’s thorough

On the other side of the length equation, being thorough is also important. While the case study is all about making impressive claims about how a product helped someone achieve a certain result, it also needs to explain how it happened. Good case studies include key details that show how the customer got from A to B using the product—something you don’t get with customer reviews . Don’t make your reader work too hard to visualize the story. If you can use images and videos, use them!

It’s a story

Yes, case studies are sales tools. But the ones really worth reading tell a compelling story with a beginning, middle, and end. They beg to be read all the way through. Often, they present a problem that creates tension and demands a solution. And remember, in this story, the customer is the hero—not you. 

6 steps to find a good case study

Before you start actually writing, there’s a bit of prep work you’ll need to do to make sure your case study is amazing. (This is where good customer service teamwork will really come in handy since your customer support team will have the best intel.)

1. Choose your customer

You may have many customers who’ve seen great results using your product. But you can’t just pick a name out of a hat and showcase their results; they may not be right for your audience or their results may not be typical. For example, don’t feature an enterprise company when most of your customers are small businesses. Or claiming that your clients have a 90% customer retention rate when most of them see 70% on average (still impressive, though).  When considering which customer to use, start by creating a list of customers that meet these criteria:

They’ve seen good results with your product or service

The numbers are what really matter. So choose customers that have seen strong results using your product. But be careful about showcasing exceptionally good results if they’re not likely to be repeated by most.

RingCentral: W2O

They have a respected and recognizable brand

Strong brands give your product instant social proof. They prove that you’re established and trustworthy. That alone can make you a front-runner in the decision-making process. After all, if Big Brand X trusts you, so can a prospect.

They’re a typical customer

Good results don’t carry as much weight when they’re achieved by companies in other industries or verticals. Identify current customers that are similar to your target audience. If you sell enterprise software, choose enterprise customers. If you’re a consultant in the healthcare industry, choose a customer that works in healthcare. 

With your list in hand, you can start reaching out. Picking up the phone can be a lot more effective than sending an email. It’s more personal, lets you build rapport, and is harder to ignore than an email. 

Try to get in touch with customers who use or are very familiar with your product or service—someone who can speak to results. Tell them you’re interested in writing a case study and you’d love to hear more about the results they’ve achieved. Be clear about what the process involves on their part—whether it’s a list of questions in an email, a phone call, or if it involves a camera and crew.  

If you’ve provided value, your customer is more likely to see you as a partner rather than a vendor and, hopefully, will be happy to participate. Remember, you’re also shining a spotlight on their own success. So it’s a win-win.  

That said, you may hear “no” a few times, too. Don’t get discouraged. Some customers will decline for different reasons, regardless of the results they’ve achieved with your product. 

Don’t just use a personal phone to call your customers and interview them. Use a communications app that has a phone calling feature instead. Not only would it show your business as the caller ID (instead of a shady phone number they’re not familiar with), some apps let you record conversations too to make it easy to go back and analyze your conversations (just remember to ask first).

2. Begin your research

Start collecting information about your customer. This is easier if you work as a team. From sales to marketing to customer service, everyone who’s been in touch with customer will have insight about their experience. They can help you understand what your customers do and sell, and what challenges they’re facing. Identify the stakeholders you need to speak with—anyone in the company who uses your product—from the CEO to the marketing intern. Collect stats, even ones you don’t think are relevant—they may be later. 

3. Ask the right questions

Smart questions get insightful answers. Here are some examples of great questions to start with: 

“What were some of the bigger challenges you faced before using our product?”

“How does our product help you reach your individual goals?”

“Which key metrics have improved most since using our product/service?”

“Which parts of your business have been impacted most, and how?”

“How long did it take to roll out our product?”

But don’t stop there. Use these questions to segue into deeper, more targeted questions that underscore the real-world benefits of your product. Let the conversation flow naturally—this is the magic of interviews. You can’t always plan for what interesting topics come up next.

4. Identify your target audience

Beyond your customer’s industry, consider who the target audience of the case study is. Who will see it? Who does it need to influence? While it’s often high-level executives who make large purchase decisions, employees at all levels can act as a champion for your product or brand. Your case study may have to persuade an IT worker that your product or service is going to make their job easier, while it needs to convince the CFO that they’ll see a real return on investment. 

5. Identify the top three things you want to highlight

During the initial research phase, you’ve likely uncovered a lot of interesting information about your customer and their experiences with your product. While it might be tempting to use it all, your case study should quickly and clearly communicate the value of your product. Go through this information and identify the three most important business results you want to communicate in the case study. 

Stats and key performance indicators (KPIs) to consider using in your case study:

• Ramp up time: How long did it take to get started with your product? Did it improve any other facet of their workflow? 
• Sales results: How did the product impact your customer’s bottom line?
• Total return on investment (ROI): How long did it take to earn more than they spent on your product? 
• Productivity increases: Which teams saw improvements in process and workflow? And now much? 

Here’s how RollWorks shows off the amazing ROI that their customers, Payscale, got with them .

6. Choose your format

A case study doesn’t have to exist only as a PDF attachment in a late-stage deal email (although there’s nothing wrong with that). Consider the format. Think about who’s going to read it (or watch it). Do you want to turn this into fancy interactive content ? Does your prospect have the time and interest to dig into the details? Or do they just want the facts? Choose the format that you think best engages the audience that you’re selling to.

Report format

This long-form document has been the gold standard for B2B case studies for many years. This format is effective when the subject matter is complex and demands detail. Remember, a CTO who’s evaluating large-scale business communications platforms for a multi-year deal is going to want more information than a marketing manager who’s evaluating a new social media ad platform:

Here’s how Zendesk presented their case study with IDC as a report .

Keeping things short and sweet is often the best way to get your message heard. By focusing on the key points, you can highlight the biggest wins at just a glance. Most report format case studies can be easily condensed into a one-page document. This is ideal for prospects (and salespeople) who are short on time and prefer something they can quickly scan—like this Adzerk case study with Reddit :

Few things can tell a story the way that video can, and case studies are no exception. They give you an unmatched level of creative freedom and storytelling using music, lighting, pacing, and voice that can evoke emotions and persuade someone using more than just numbers and facts. And at just a couple of minutes long, they can do a lot of heavy lifting in not a lot of time. 

Dropbox: Expedia

Infographic

People love infographics. They’re an excellent way to convey important data in a simple, eye-pleasing way. If your case study requires you to use a lot of data to prove a point—or if visualizing data can make the results more clear—building an infographic case study can be a great investment. 

5 key steps for writing your case study

Congrats. You’ve done the research. You’ve made the calls. You’ve pored over all the details. Now, all you have to do is write. Here are five simple steps that’ll help you create a powerful case study that champions your customer and clearly showcases the real-world value of your products or services. 

1. Introduce the customer

Set the stage for your case study with an introduction. Briefly explain who your customer is with a bit of background information that can include their industry, product, company size, and location. You don’t have to dig into the nuts and bolts of their business, but you do want the reader to understand who they are and what they do. The more color you can provide here, the more impactful it’ll be when you show the awesome results this customer saw because they chose you.

2. State the problem

Every product or service is a solution to a problem. Explain the problem (or problems) that you helped your customer overcome. Describe the larger impact of the issue. Maybe it was customers leaving. Perhaps it was bad leads—or good leads that were never followed up on. Use this as an opportunity to clearly show what was at stake, and make sure you leave the jargon out of it. Frame the problem in simple terms that any reader can understand. 

3. Introduce your product

This is where you begin solving the problem. Briefly introduce your product and what it does. Start on a general level, then apply it to the challenge the customer was experiencing. Talk about which teams or individuals used your product and how they used it. Be sure to make the connection between the customer’s problem and your solution crystal clear. 

4. Show results

The big reveal. What kind of results was your customer able to achieve using your product or service? Speak to how they solved the problem descriptively, but also with cold, hard numbers. Not everything can be measured in numbers (sometimes, peace of mind is a powerful benefit all on its own), but whenever you can, back up your story with the stats. At the very least, this will make it easy for a CFO—or a prospect who wants to buy—to justify buying your product.

For example: 

The customer saw a 33% increase in web traffic, a large influx of social media activity, and a 10% boost in revenue over the duration of the campaign . 

5. Prove it

Don’t forget to show your math. How you get the results is just as important as the results themselves.  What specific steps were taken to get those results? Not only will this help validate your claims, it makes it easier to envision how the reader may be able to achieve them, too. 

8 tips to write a great case study

1. avoid jargon .

As a subject matter expert in your line of work, it can be tempting to go into as much jargony detail as possible. This is normal as it’s often the language we use at work every day. But remember that your customer probably doesn’t speak that language. When in doubt, use an app like Hemingway to make sure you’re writing at a level that most people can understand.  

2. Spend time on your title

It’s tempting to use the case study’s most interesting or impressive KPI as your title. But that also gives away the ending before the story begins, and skips details that are important for context in the process. Try writing a title that piques interest without being a spoiler. 

3. Edit. Then edit again. 

Once you’ve got your first draft completed (and the jargon removed), edit the case study. A few best practices here:

• Look for and eliminate unnecessary adjectives. 
• Speak in an active voice. 
• Look for details that get in the way of the story. 

And then do it all over again until you can’t edit it down anymore without losing the essence of the story. 

4. A picture is worth a thousand words

This is especially true when you’re talking about a block of text that’s trying to communicate a chunk of data. Well-designed charts, graphs, images, or infographics can do the heavy lifting of several pages of text in just seconds. They can also help break up large pieces of text, making the case study easier to read—and nicer to look at. After all, the end goal is to have these read all the way through.

Here’s an example of a graphic from a longer CPA Canada infographic (that includes a short case study embedded inside it): 

5. Pull quotes

Hard data and results are good. But a customer quote is a great piece of social proof and adds a human element to your case study. And that makes your results more believable. Customer quotes can also be used outside of your testimonial too—try adding it on your website, landing pages, or email marketing campaigns or welcome emails to get more people to check out your products and buy online. Here’s an example of what that looks like:

6. Make it scannable

Some people will take the time to read your case study front to back and absorb every detail. Some won’t give it more than a single glance. And sometimes, that person is the decision-maker. Make the most important results easy to spot, read, and retain at a glance. Write headings that are descriptive—if someone just scanned them, would they be able to get the gist of the story? Consider putting a summary at the very beginning of the study, or call out impressive results in a larger font size. 

7. Record your interviews

Ditch the pen and paper. If you’re conducting one-on-one interviews over the phone, you can save yourself a lot of time and energy by recording the conversation (with your customer’s consent, of course). There are tools that can make this easier too—you might find one or two in your marketing stack . For example, you could use RingCentral’s Zapier integration to transcribe your conversation into a text file. 

8. Don’t forget the call to action (CTA)

Your prospect is excited because your case study has done an excellent job of showing how your product or service can help drive results for customers. Now, how do they get in touch with you to learn more? Whether it’s a button that links to your website, an email address, or a phone number, make sure there’s an easy way of getting in touch with you in the case study. 

5 examples of great case studies from real-life companies

Mailchimp: make a connection in real life with postcards.

What we like about it: The title doesn’t give everything away all at once, and the case study tells a story with a beginning, middle, and end. The sections are clearly titled and organized, and the results are easy to find. As a bonus: the video adds a believable human element.

LinkedIn: How Adobe achieves alignment and ABM success with LinkedIn

What we like about it: It’s detailed without being a novella. It understands and speaks to the enterprise customer. The key points are in bullet format and easy to read. The important wins are highlighted. And the video makes the content easy to engage with. 

Hootsuite: How Meliá became one of the most influential hotel chains on social media

What we like about it: The title makes you want to read the whole customer story. They’ve embdedded a well-produced video high on the page, so you can choose to watch it before you read on. The design and layout of the page makes the content and images easy to consume, and the results can’t be missed. Also, they weren’t shy about adding CTAs. 

Slack: So yeah, we tried Slack

What we like about it: This case study follows the tried and true format of customer, problem, solution, and results. It uses humor and relatable characters throughout to support the story and keep your attention. And it’s only two minutes long so it gets the point across quickly. 

Assetworks: South Carolina School Board Insurance Trust

What we like about it: This case study tackles the otherwise complex and technical topic, and simplifies it as an infographic using images to make the results clear. It’s concise and easy to follow because you can see the math without actually doing any math. 

The final word on building a great case study…

Sure, an ad or boosted social media post (more on social media best practices here) can make someone aware of your brand or that your product exists, and a landing page can tell them how your product can solve their problem. 

But there’s nothing quite as powerful as someone else singing your praises. 

And that’s exactly what a case study does. Spend the time to do it right and it has the potential to deliver huge ROI no matter how big or small your company is. And not just once—but over and over again.

Originally published Feb 05, 2020, updated Oct 19, 2022

53 marketing quotes to inspire & motivate you

You can find inspirational or motivational quotes for pretty much any area of life. There are some great quotes out there for things like fitness, healthy eating, and relationships. You’ll often see some people put quotes on their desk to keep them focused at work. Others will even tattoo their favorite quotes so they always ...

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Case Study Format

Following are the main Components/Parts of a Case Study;

Executive Summary

Introduction, alternatives and decision criteria, recommendations and implementation plan, conclusion and references, citing sources.

Writing a case study is not a simple process as it can take several months to write it successfully. There are many stages you need to complete first and after that, you finally come at the stage of writing your case study like selecting the topic, a lot of research ( qualitative research, quantitative research or interview with subjects etc), etc. While writing a case study, bear in mind that all the case studies aren’t the same for sure and vary largely in size, type, and design. It is necessary for a writer to follow a proper case study format while writing it, no matter what.

If you are going to write your very first case study, you need to know that every case study has a specific format, as mentioned above. Students or businesses all over the globe must follow that format in order to make their case study successful. However, one may choose to be a little bit different but the basics remain the same for everyone. Here we are going to discuss different case study sections. The purpose of every section in case study format is different from other and comprise of several unique key elements.

You may also study: How To Write a Case Study

It will definitely assist you to write your own case study with the utmost ease. The sections that are included in the case study are executive summary, introduction, analysis, alternatives and decision criteria, recommendations and implementation plan, conclusions and references, citing sources.

Before moving towards a detailed view of the case study format , let us have a look at the case study benefits.

Value of Case Study

Have you ever think why case studies are developed? This is the question you must ask yourself before writing your very first case study. Knowing the answers and keeping all that stuff in mind will let you write a successful and worth-reading case study.

It is the best way to put the students or learners in an active learning mode. Instead of just testing their memory, case study challenges the students to test their learning via practice, which is usually the easiest approach. In short, case studies proffer students a great opportunity to analyze and resolve the real-world problem with a practical approach. It makes the interpretation as well as problem-solving tasks easy for the learners.

A detailed look at the Case Study Format

Executive summary for a case study is usually similar to the general summary. It is basically a short snapshot that shed the image of your entire case precisely, which consists of a page, most of the time. It doesn’t include too much detail about your case but focuses on key elements or main highlights of your case study. Reading the executive summary of your case study must give the reader an idea about the entire case study and its key elements. There are two approaches adopted to write case studies.

• The first approach is to write the case study’s executive summary in short paragraphs.
• On the other hand, the second approach is to write it in form of points.

Key Points to Cover in an Executive Summary

There are a few things which are necessary to include in your case study’s executive summary i.e. problem statement, recommendation, evidence and supporting arguments, and last but not the least conclusion.

All these things comprise to form a perfect executive summary, which let the reader walk through the entire case study, just by reading it.

• The first thing to include in a case study format is an executive summary, as mentioned above. The very first thing to add in executive summary is problem statement. It let the reader know about the key issue discussed in the entire case in just a few lines. Problem statement usually comprises of one or two statement but may vary according to the case.
• The second thing to add is recommendation after stating the problem statement. What is this recommendation about? It presents one or a few ideas to resolve the problem stated in problem statement.
• The next thing to add in the executive summary is supporting arguments and evidence. It is all about highlighting key areas of your entire case and the arguments of the case. Moreover, it also states one or a few pieces of evidence that support your recommendation section.
• This is the last thing to add in the executive summary is conclusion that definitely concludes everything stated here in this portion. You must let the reader know the key message you want to deliver. Also, state why it is essential to resolve this problem and what are the expected outcomes if the reader follows your recommendations you stated in your case study.

The introduction section of the case study is somehow different from the introduction section of research paper . What is this section intended to have? It is usually here to formulate the stage for your entire case study. It must not only introduce the report of your case but also should state the key problem being faced and discussed thoroughly in a clear and accurate tone.

One thing which is worth-mentioning here is that case study is not like a scientific research report, which is only read by the experts or scientists. It must be written in such a way that a layperson could read and understand it well. Reading the introduction section of case study must let the user know about full case study i.e. what it is about, what are the key areas discussed in this and how the reader will get benefit from it etc. It must not be short enough to miss the necessary details. On the other hand, it must not be long enough that it becomes boring.

Don’t include irrelevant or unnecessary details in it. Just be precise and accurate, and try to include the following:

• A perfect and well-written introductory sentence.
• A short but precise problem statement.
• All necessary problem details.
• The best recommendations for the stated problem.
• And last but not the least: roadmap of the entire case study.

The next section of the case study, when it comes to case study format is analysis. It is usually a detailed section of your case study and it is supposed to examine the problem (which is identified in the previous section) in detail.

When it comes to the right way to structure the analysis section, make sure to ask from your instructor about this, whether there is any format to follow specifically when writing it i.e. SWOT or PEST etc? If your instructor tells you to write it generally, here are a few important things you need to know.

• Start with examining the problem and try to focus on its most crucial or sensitive parts. Here, you are not meant to include any irrelevant or unnecessary details. Your main focus should be the main problem and its critical areas.
• Make sure to mention the causes as well as effects, or any other detail you think is necessary to include. Also, make use of headings to highlight every single portion.
• Here, you are also meant to provide a meaningful conclusion to your analysis. It must conclude all the points, ideas and thoughts you discussed previously into some meaningful ending.

This section of the case study format addresses two key areas. The first one is alternatives and the second one is the decision criteria.

As the name suggests, alternatives must mention all the potential ways the identified problem can be addressed. It let the reader think about the different directions (which are successful as well) to solve the problem. Knowing all the alternatives or the available options to solve the problem, the reader can definitely identify the best possible solution to the problem, as per knowledge and thinking criteria.

One thing which is worth mentioning here is that all the presented solutions to the problems in the alternatives portion must be mutually exclusive. Why is it important to present the mutually exclusive alternatives? What are basically mutually exclusive alternatives?

Mutually exclusive alternatives refer to the situation in which selecting one alternative eliminate all others. There is a specific and a single solution to the identified problem. Mutually exclusive alternatives prevent a scenario in which it becomes essential to implement several available alternatives. When the alternatives will be mutually exclusive, it means that choosing one will eliminate the chances of selection of all others and thus, one alternative will be implemented.

The second thing which needs to be stated here in this portion is decision criteria. It means that you must state precisely your decisive factor i.e. key requirements one need to meet successfully for solving the problem. It is the most important thing here in this portion and you must state it in easy to read and simple words so that the reader could understand it well.

In this section of the case study format , the reader is well aware of all the recommendations for sure. So, there is no need to introduce the reader to the basics of the recommendations again. Rather, you are supposed to let the reader know the specifics of recommendation for solving the identified problem. In this regard, the reader will automatically get all the aspects of the recommended solution to the problem and will see how it will take you to the path of success i.e. towards the path of resolving the problem. For executing the recommendation in a successful manner, here you need to proffer the reader a well thought-out and a comprehensive implementation plan so that the reader could execute the recommended solution, making sure the success.

The recommendations and implementation plan is supposed to include a few things must, which are the following:

A detailed overview of what your recommendation entails, which are necessary steps to follow to implement this successfully and also, the required expertise or a list of equipment needed.

When it comes to the implementation plan, here are a few things which are essential to state here:

• The most important parts of the entire plan of implementation, and who will be accountable for those parts separately.
• Whether it is short term, long term or medium term implementation plan.
• The overall cost required to implement the recommendation.
• The effects of the implementation of recommendation on the entire organization.
• The last but not the least thing to mention here is the potential things which could fail while implementation and plan to recover that failure, if any.

This is the portion of your case study where you are going to make a final ending note for your reader in a few easy to understand yet powerful statements. These statements must emphasize the proposed recommendations. As per common observation, a few instructors don’t suggest you to include this portion of conclusion in your case study but it is helpful in providing a strong endnote to your case study.

There are a few things which are essential to add in this conclusion section, which are the following:

• If the purpose of your case is complex, make sure to summarize it here, in point form, so that the reader could have a review at the entire case again, before approaching the conclusion.
• If you haven’t yet stated the importance of your findings, make sure to do it here in this conclusion section.
• A few concluding sentences that shed the case’s summary and let the reader know what he has learned from this. Moreover, choose to finalize with a few memorable and impactful sentences.

However, the conclusion is the most important section of your case study as you are going to give your entire case an end note, so here are a few things you must keep in your mind while writing this portion.

• A few people give an abrupt ending to the case study, which is one of the biggest mistakes ever. The reason is that the ending must be impactful and must not leave the reader disappointed. So, formulate a few sentences to create a path towards a natural close.
• While stating your recommendation, try to summarize the ways problem will be resolved at hand.
• Make sure everything you write in conclusion portion is convincing enough to persuade the reader to believe that the recommended solution will work the best for solving the particular problem.

As per universal rule, you must cite any idea, though, or expression that is not yours and is presented by someone else. These citations are must to include at the end of your case study. The plagiarism policies or academic misconduct policies vary from one institute to another so you must familiarize yourself with the ones of your institute. Other than this, try your level best to make your case study written in a perfect manner and make sure to cite all of the following:

• Ideas presented by others, which are originally not by you.
• Use of quotations is not recommended while writing the case study. But, if you do, make sure to cite it properly.
• Any summarized work by any other writer.
• Definitions, models or theories etc presented by others must also be properly cited.
• Any information from company websites, annual reports, or press releases must also be cited in a proper manner.

What is the Proper Way to Write Citations?

If you are going to write the citation for the very first time, you need to know that these aren’t written generally. Rather, there is a specific format to follow while writing them. There are a few citations styles which are used by the students universally but before finalizing, you must ask your instructor to suggest you the best one.

A few most commonly used citation styles are the following:

An Ideal Case Study should be LOGICAL, ALL INCLUSIVE & THOROUGH

There are a few characteristics your case study must possess, which are the following:

The first and foremost thing is that each and every section or part of your case study must be logical. Any guesses or estimations must not be included in your case study as everything is supposed to be logical and authentic. However, you can choose to write your observation generally in your case study but it must not state any sort of assumptions made from that.

All INCLUSIVE

The next thing is that your case study must not miss any data or findings. It should be all inclusive i.e. you aren’t given the authority to choose data or findings to include or skip. You are liable to put everything in it. Otherwise, it could fail to be a successful case study.

The last thing to mention here is that your case study must be thorough. You aren’t just meant to write down all the observations during your research but rather, you must proffer the in-depth detail to every observation as well.

So, this is all about writing your case study as well as the right case study format to follow while writing it. Keep all the above-listed things in mind and start your writing process now.

Case Study Format Example 01:

Case study format example 02:, case study format example 03:.

Lots of Luck!

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Writing A Case Study

A Complete Case Study Writing Guide With Examples

People also read

Simple Case Study Format for Students to Follow

Understand the Types of Case Study Here

Brilliant Case Study Examples and Templates For Your Help

Many writers find themselves grappling with the challenge of crafting persuasive and engaging case studies. 

The process can be overwhelming, leaving them unsure where to begin or how to structure their study effectively. And, without a clear plan, it's tough to show the value and impact in a convincing way.

But don’t worry!

In this blog, we'll guide you through a systematic process, offering step-by-step instructions on crafting a compelling case study. 

Along the way, we'll share valuable tips and illustrative examples to enhance your understanding. So, let’s get started.

• 1. What is a Case Study? 
• 2. Types of Case Studies
• 3. How To Write a Case Study - 9 Steps
• 4. Case Study Methods
• 5. Case Study Format
• 6. Case Study Examples
• 7. Benefits and Limitations of Case Studies

What is a Case Study? 

A case study is a detailed analysis and examination of a particular subject, situation, or phenomenon. It involves comprehensive research to gain a deep understanding of the context and variables involved. 

Typically used in academic, business, and marketing settings, case studies aim to explore real-life scenarios, providing insights into challenges, solutions, and outcomes. They serve as valuable tools for learning, decision-making, and showcasing success stories.

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Types of Case Studies

Case studies come in various forms, each tailored to address specific objectives and areas of interest. Here are some of the main types of case studies :

• Illustrative Case Studies: These focus on describing a particular situation or event, providing a detailed account to enhance understanding.
• Exploratory Case Studies: Aimed at investigating an issue and generating initial insights, these studies are particularly useful when exploring new or complex topics.
• Explanatory Case Studies: These delve into the cause-and-effect relationships within a given scenario, aiming to explain why certain outcomes occurred.
• Intrinsic Case Studies: Concentrating on a specific case that holds intrinsic value, these studies explore the unique qualities of the subject itself.
• Instrumental Case Studies: These are conducted to understand a broader issue and use the specific case as a means to gain insights into the larger context.
• Collective Case Studies: Involving the study of multiple cases, this type allows for comparisons and contrasts, offering a more comprehensive view of a phenomenon or problem.

How To Write a Case Study - 9 Steps

Crafting an effective case study involves a structured approach to ensure clarity, engagement, and relevance. 

Here's a step-by-step guide on how to write a compelling case study:

Step 1: Define Your Objective

Before diving into the writing process, clearly define the purpose of your case study. Identify the key questions you want to answer and the specific goals you aim to achieve. 

Whether it's to showcase a successful project, analyze a problem, or demonstrate the effectiveness of a solution, a well-defined objective sets the foundation for a focused and impactful case study.

Step 2: Conduct Thorough Research

Gather all relevant information and data related to your chosen case. This may include interviews, surveys, documentation, and statistical data. 

Ensure that your research is comprehensive, covering all aspects of the case to provide a well-rounded and accurate portrayal. 

The more thorough your research, the stronger your case study's foundation will be.

Step 3: Introduction: Set the Stage

Begin your case study with a compelling introduction that grabs the reader's attention. Clearly state the subject and the primary issue or challenge faced. 

Engage your audience by setting the stage for the narrative, creating intrigue, and highlighting the significance of the case.

Step 4: Present the Background Information

Provide context by presenting the background information of the case. Explore relevant history, industry trends, and any other factors that contribute to a deeper understanding of the situation. 

This section sets the stage for readers, allowing them to comprehend the broader context before delving into the specifics of the case.

Step 5: Outline the Challenges Faced

Identify and articulate the challenges or problems encountered in the case. Clearly define the obstacles that needed to be overcome, emphasizing their significance. 

This section sets the stakes for your audience and prepares them for the subsequent exploration of solutions.

Step 6: Detail the Solutions Implemented

Describe the strategies, actions, or solutions applied to address the challenges outlined. Be specific about the decision-making process, the rationale behind the chosen solutions, and any alternatives considered. 

This part of the case study demonstrates problem-solving skills and showcases the effectiveness of the implemented measures.

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Step 7: Showcase Measurable Results

Present tangible outcomes and results achieved as a direct consequence of the implemented solutions. Use data, metrics, and success stories to quantify the impact. 

Whether it's increased revenue, improved efficiency, or positive customer feedback, measurable results add credibility and validation to your case study.

Step 8: Include Engaging Visuals

Enhance the readability and visual appeal of your case study by incorporating relevant visuals such as charts, graphs, images, and infographics. 

Visual elements not only break up the text but also provide a clearer representation of data and key points, making your case study more engaging and accessible.

Step 9: Provide a Compelling Conclusion

Wrap up your case study with a strong and conclusive summary. Revisit the initial objectives, recap key findings, and emphasize the overall success or significance of the case. 

This section should leave a lasting impression on your readers, reinforcing the value of the presented information.

Case Study Methods

The methods employed in case study writing are diverse and flexible, catering to the unique characteristics of each case. Here are common methods used in case study writing:

Conducting one-on-one or group interviews with individuals involved in the case to gather firsthand information, perspectives, and insights.

• Observation

Directly observing the subject or situation to collect data on behaviors, interactions, and contextual details.

• Document Analysis

Examining existing documents, records, reports, and other written materials relevant to the case to gather information and insights.

• Surveys and Questionnaires

Distributing structured surveys or questionnaires to relevant stakeholders to collect quantitative data on specific aspects of the case.

• Participant Observation

Combining direct observation with active participation in the activities or events related to the case to gain an insider's perspective.

• Triangulation

Using multiple methods (e.g., interviews, observation, and document analysis) to cross-verify and validate the findings, enhancing the study's reliability.

• Ethnography

Immersing the researcher in the subject's environment over an extended period, focusing on understanding the cultural context and social dynamics.

Case Study Format

Effectively presenting your case study is as crucial as the content itself. Follow these formatting guidelines to ensure clarity and engagement:

• Opt for fonts that are easy to read, such as Arial, Calibri, or Times New Roman.
• Maintain a consistent font size, typically 12 points for the body text.
• Aim for double-line spacing to maintain clarity and prevent overwhelming the reader with too much text.
• Utilize bullet points to present information in a concise and easily scannable format.
• Use numbered lists when presenting a sequence of steps or a chronological order of events.
• Bold or italicize key phrases or important terms to draw attention to critical points.
• Use underline sparingly, as it can sometimes be distracting in digital formats.
• Choose the left alignment style.
• Use hierarchy to distinguish between different levels of headings, making it easy for readers to navigate.

If you're still having trouble organizing your case study, check out this blog on case study format for helpful insights.

Case Study Examples

If you want to understand how to write a case study, examples are a fantastic way to learn. That's why we've gathered a collection of intriguing case study examples for you to review before you begin writing.

Case Study Research Example

Case Study Template

Case Study Introduction Example

Amazon Case Study Example

Business Case Study Example

APA Format Case Study Example

Psychology Case Study Example

Medical Case Study Example

UX Case Study Example

Looking for more examples? Check out our blog on case study examples for your inspiration!

Benefits and Limitations of Case Studies

Case studies are a versatile and in-depth research method, providing a nuanced understanding of complex phenomena. 

However, like any research approach, case studies come with their set of benefits and limitations. Some of them are given below:

Tips for Writing an Effective Case Study

Here are some important tips for writing a good case study:

• Clearly articulate specific, measurable research questions aligned with your objectives.
• Identify whether your case study is exploratory, explanatory, intrinsic, or instrumental.
• Choose a case that aligns with your research questions, whether it involves an individual case or a group of people through multiple case studies.
• Explore the option of conducting multiple case studies to enhance the breadth and depth of your findings.
• Present a structured format with clear sections, ensuring readability and alignment with the type of research.
• Clearly define the significance of the problem or challenge addressed in your case study, tying it back to your research questions.
• Collect and include quantitative and qualitative data to support your analysis and address the identified research questions.
• Provide sufficient detail without overwhelming your audience, ensuring a comprehensive yet concise presentation.
• Emphasize how your findings can be practically applied to real-world situations, linking back to your research objectives.
• Acknowledge and transparently address any limitations in your study, ensuring a comprehensive and unbiased approach.

To sum it up, creating a good case study involves careful thinking to share valuable insights and keep your audience interested. 

Stick to basics like having clear questions and understanding your research type. Choose the right case and keep things organized and balanced.

Remember, your case study should tackle a problem, use relevant data, and show how it can be applied in real life. Be honest about any limitations, and finish with a clear call-to-action to encourage further exploration.

However, if you are having issues understanding how to write a case study, it is best to hire the professionals.  Hiring a paper writing service online will ensure that you will get best grades on your essay without any stress of a deadline. 

So be sure to check out case study writing service online and stay up to the mark with your grades. 

Frequently Asked Questions

What is the purpose of a case study.

The objective of a case study is to do intensive research on a specific matter, such as individuals or communities. It's often used for academic purposes where you want the reader to know all factors involved in your subject while also understanding the processes at play.

What are the sources of a case study?

Some common sources of a case study include:

• Archival records
• Direct observations and encounters
• Participant observation
• Facts and statistics
• Physical artifacts

What is the sample size of a case study?

A normally acceptable size of a case study is 30-50. However, the final number depends on the scope of your study and the on-ground demographic realities.

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Dr. Barbara is a highly experienced writer and author who holds a Ph.D. degree in public health from an Ivy League school. She has worked in the medical field for many years, conducting extensive research on various health topics. Her writing has been featured in several top-tier publications.

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Definition and Introduction

Case analysis is a problem-based teaching and learning method that involves critically analyzing complex scenarios within an organizational setting for the purpose of placing the student in a “real world” situation and applying reflection and critical thinking skills to contemplate appropriate solutions, decisions, or recommended courses of action. It is considered a more effective teaching technique than in-class role playing or simulation activities. The analytical process is often guided by questions provided by the instructor that ask students to contemplate relationships between the facts and critical incidents described in the case.

Cases generally include both descriptive and statistical elements and rely on students applying abductive reasoning to develop and argue for preferred or best outcomes [i.e., case scenarios rarely have a single correct or perfect answer based on the evidence provided]. Rather than emphasizing theories or concepts, case analysis assignments emphasize building a bridge of relevancy between abstract thinking and practical application and, by so doing, teaches the value of both within a specific area of professional practice.

Given this, the purpose of a case analysis paper is to present a structured and logically organized format for analyzing the case situation. It can be assigned to students individually or as a small group assignment and it may include an in-class presentation component. Case analysis is predominately taught in economics and business-related courses, but it is also a method of teaching and learning found in other applied social sciences disciplines, such as, social work, public relations, education, journalism, and public administration.

Ellet, William. The Case Study Handbook: A Student's Guide . Revised Edition. Boston, MA: Harvard Business School Publishing, 2018; Christoph Rasche and Achim Seisreiner. Guidelines for Business Case Analysis . University of Potsdam; Writing a Case Analysis . Writing Center, Baruch College; Volpe, Guglielmo. "Case Teaching in Economics: History, Practice and Evidence." Cogent Economics and Finance 3 (December 2015). doi:https://doi.org/10.1080/23322039.2015.1120977.

How to Approach Writing a Case Analysis Paper

The organization and structure of a case analysis paper can vary depending on the organizational setting, the situation, and how your professor wants you to approach the assignment. Nevertheless, preparing to write a case analysis paper involves several important steps. As Hawes notes, a case analysis assignment “...is useful in developing the ability to get to the heart of a problem, analyze it thoroughly, and to indicate the appropriate solution as well as how it should be implemented” [p.48]. This statement encapsulates how you should approach preparing to write a case analysis paper.

Before you begin to write your paper, consider the following analytical procedures:

• Review the case to get an overview of the situation . A case can be only a few pages in length, however, it is most often very lengthy and contains a significant amount of detailed background information and statistics, with multilayered descriptions of the scenario, the roles and behaviors of various stakeholder groups, and situational events. Therefore, a quick reading of the case will help you gain an overall sense of the situation and illuminate the types of issues and problems that you will need to address in your paper. If your professor has provided questions intended to help frame your analysis, use them to guide your initial reading of the case.
• Read the case thoroughly . After gaining a general overview of the case, carefully read the content again with the purpose of understanding key circumstances, events, and behaviors among stakeholder groups. Look for information or data that appears contradictory, extraneous, or misleading. At this point, you should be taking notes as you read because this will help you develop a general outline of your paper. The aim is to obtain a complete understanding of the situation so that you can begin contemplating tentative answers to any questions your professor has provided or, if they have not provided, developing answers to your own questions about the case scenario and its connection to the course readings,lectures, and class discussions.
• Determine key stakeholder groups, issues, and events and the relationships they all have to each other . As you analyze the content, pay particular attention to identifying individuals, groups, or organizations described in the case and identify evidence of any problems or issues of concern that impact the situation in a negative way. Other things to look for include identifying any assumptions being made by or about each stakeholder, potential biased explanations or actions, explicit demands or ultimatums , and the underlying concerns that motivate these behaviors among stakeholders. The goal at this stage is to develop a comprehensive understanding of the situational and behavioral dynamics of the case and the explicit and implicit consequences of each of these actions.
• Identify the core problems . The next step in most case analysis assignments is to discern what the core [i.e., most damaging, detrimental, injurious] problems are within the organizational setting and to determine their implications. The purpose at this stage of preparing to write your analysis paper is to distinguish between the symptoms of core problems and the core problems themselves and to decide which of these must be addressed immediately and which problems do not appear critical but may escalate over time. Identify evidence from the case to support your decisions by determining what information or data is essential to addressing the core problems and what information is not relevant or is misleading.
• Explore alternative solutions . As noted, case analysis scenarios rarely have only one correct answer. Therefore, it is important to keep in mind that the process of analyzing the case and diagnosing core problems, while based on evidence, is a subjective process open to various avenues of interpretation. This means that you must consider alternative solutions or courses of action by critically examining strengths and weaknesses, risk factors, and the differences between short and long-term solutions. For each possible solution or course of action, consider the consequences they may have related to their implementation and how these recommendations might lead to new problems. Also, consider thinking about your recommended solutions or courses of action in relation to issues of fairness, equity, and inclusion.
• Decide on a final set of recommendations . The last stage in preparing to write a case analysis paper is to assert an opinion or viewpoint about the recommendations needed to help resolve the core problems as you see them and to make a persuasive argument for supporting this point of view. Prepare a clear rationale for your recommendations based on examining each element of your analysis. Anticipate possible obstacles that could derail their implementation. Consider any counter-arguments that could be made concerning the validity of your recommended actions. Finally, describe a set of criteria and measurable indicators that could be applied to evaluating the effectiveness of your implementation plan.

Use these steps as the framework for writing your paper. Remember that the more detailed you are in taking notes as you critically examine each element of the case, the more information you will have to draw from when you begin to write. This will save you time.

NOTE : If the process of preparing to write a case analysis paper is assigned as a student group project, consider having each member of the group analyze a specific element of the case, including drafting answers to the corresponding questions used by your professor to frame the analysis. This will help make the analytical process more efficient and ensure that the distribution of work is equitable. This can also facilitate who is responsible for drafting each part of the final case analysis paper and, if applicable, the in-class presentation.

Framework for Case Analysis . College of Management. University of Massachusetts; Hawes, Jon M. "Teaching is Not Telling: The Case Method as a Form of Interactive Learning." Journal for Advancement of Marketing Education 5 (Winter 2004): 47-54; Rasche, Christoph and Achim Seisreiner. Guidelines for Business Case Analysis . University of Potsdam; Writing a Case Study Analysis . University of Arizona Global Campus Writing Center; Van Ness, Raymond K. A Guide to Case Analysis . School of Business. State University of New York, Albany; Writing a Case Analysis . Business School, University of New South Wales.

Structure and Writing Style

A case analysis paper should be detailed, concise, persuasive, clearly written, and professional in tone and in the use of language . As with other forms of college-level academic writing, declarative statements that convey information, provide a fact, or offer an explanation or any recommended courses of action should be based on evidence. If allowed by your professor, any external sources used to support your analysis, such as course readings, should be properly cited under a list of references. The organization and structure of case analysis papers can vary depending on your professor’s preferred format, but its structure generally follows the steps used for analyzing the case.

Introduction

The introduction should provide a succinct but thorough descriptive overview of the main facts, issues, and core problems of the case . The introduction should also include a brief summary of the most relevant details about the situation and organizational setting. This includes defining the theoretical framework or conceptual model on which any questions were used to frame your analysis.

Following the rules of most college-level research papers, the introduction should then inform the reader how the paper will be organized. This includes describing the major sections of the paper and the order in which they will be presented. Unless you are told to do so by your professor, you do not need to preview your final recommendations in the introduction. U nlike most college-level research papers , the introduction does not include a statement about the significance of your findings because a case analysis assignment does not involve contributing new knowledge about a research problem.

Background Analysis

Background analysis can vary depending on any guiding questions provided by your professor and the underlying concept or theory that the case is based upon. In general, however, this section of your paper should focus on:

• Providing an overarching analysis of problems identified from the case scenario, including identifying events that stakeholders find challenging or troublesome,
• Identifying assumptions made by each stakeholder and any apparent biases they may exhibit,
• Describing any demands or claims made by or forced upon key stakeholders, and
• Highlighting any issues of concern or complaints expressed by stakeholders in response to those demands or claims.

These aspects of the case are often in the form of behavioral responses expressed by individuals or groups within the organizational setting. However, note that problems in a case situation can also be reflected in data [or the lack thereof] and in the decision-making, operational, cultural, or institutional structure of the organization. Additionally, demands or claims can be either internal and external to the organization [e.g., a case analysis involving a president considering arms sales to Saudi Arabia could include managing internal demands from White House advisors as well as demands from members of Congress].

Throughout this section, present all relevant evidence from the case that supports your analysis. Do not simply claim there is a problem, an assumption, a demand, or a concern; tell the reader what part of the case informed how you identified these background elements.

Identification of Problems

In most case analysis assignments, there are problems, and then there are problems . Each problem can reflect a multitude of underlying symptoms that are detrimental to the interests of the organization. The purpose of identifying problems is to teach students how to differentiate between problems that vary in severity, impact, and relative importance. Given this, problems can be described in three general forms: those that must be addressed immediately, those that should be addressed but the impact is not severe, and those that do not require immediate attention and can be set aside for the time being.

All of the problems you identify from the case should be identified in this section of your paper, with a description based on evidence explaining the problem variances. If the assignment asks you to conduct research to further support your assessment of the problems, include this in your explanation. Remember to cite those sources in a list of references. Use specific evidence from the case and apply appropriate concepts, theories, and models discussed in class or in relevant course readings to highlight and explain the key problems [or problem] that you believe must be solved immediately and describe the underlying symptoms and why they are so critical.

Alternative Solutions

This section is where you provide specific, realistic, and evidence-based solutions to the problems you have identified and make recommendations about how to alleviate the underlying symptomatic conditions impacting the organizational setting. For each solution, you must explain why it was chosen and provide clear evidence to support your reasoning. This can include, for example, course readings and class discussions as well as research resources, such as, books, journal articles, research reports, or government documents. In some cases, your professor may encourage you to include personal, anecdotal experiences as evidence to support why you chose a particular solution or set of solutions. Using anecdotal evidence helps promote reflective thinking about the process of determining what qualifies as a core problem and relevant solution .

Throughout this part of the paper, keep in mind the entire array of problems that must be addressed and describe in detail the solutions that might be implemented to resolve these problems.

Recommended Courses of Action

In some case analysis assignments, your professor may ask you to combine the alternative solutions section with your recommended courses of action. However, it is important to know the difference between the two. A solution refers to the answer to a problem. A course of action refers to a procedure or deliberate sequence of activities adopted to proactively confront a situation, often in the context of accomplishing a goal. In this context, proposed courses of action are based on your analysis of alternative solutions. Your description and justification for pursuing each course of action should represent the overall plan for implementing your recommendations.

For each course of action, you need to explain the rationale for your recommendation in a way that confronts challenges, explains risks, and anticipates any counter-arguments from stakeholders. Do this by considering the strengths and weaknesses of each course of action framed in relation to how the action is expected to resolve the core problems presented, the possible ways the action may affect remaining problems, and how the recommended action will be perceived by each stakeholder.

In addition, you should describe the criteria needed to measure how well the implementation of these actions is working and explain which individuals or groups are responsible for ensuring your recommendations are successful. In addition, always consider the law of unintended consequences. Outline difficulties that may arise in implementing each course of action and describe how implementing the proposed courses of action [either individually or collectively] may lead to new problems [both large and small].

Throughout this section, you must consider the costs and benefits of recommending your courses of action in relation to uncertainties or missing information and the negative consequences of success.

The conclusion should be brief and introspective. Unlike a research paper, the conclusion in a case analysis paper does not include a summary of key findings and their significance, a statement about how the study contributed to existing knowledge, or indicate opportunities for future research.

Begin by synthesizing the core problems presented in the case and the relevance of your recommended solutions. This can include an explanation of what you have learned about the case in the context of your answers to the questions provided by your professor. The conclusion is also where you link what you learned from analyzing the case with the course readings or class discussions. This can further demonstrate your understanding of the relationships between the practical case situation and the theoretical and abstract content of assigned readings and other course content.

Problems to Avoid

The literature on case analysis assignments often includes examples of difficulties students have with applying methods of critical analysis and effectively reporting the results of their assessment of the situation. A common reason cited by scholars is that the application of this type of teaching and learning method is limited to applied fields of social and behavioral sciences and, as a result, writing a case analysis paper can be unfamiliar to most students entering college.

After you have drafted your paper, proofread the narrative flow and revise any of these common errors:

• Unnecessary detail in the background section . The background section should highlight the essential elements of the case based on your analysis. Focus on summarizing the facts and highlighting the key factors that become relevant in the other sections of the paper by eliminating any unnecessary information.
• Analysis relies too much on opinion . Your analysis is interpretive, but the narrative must be connected clearly to evidence from the case and any models and theories discussed in class or in course readings. Any positions or arguments you make should be supported by evidence.
• Analysis does not focus on the most important elements of the case . Your paper should provide a thorough overview of the case. However, the analysis should focus on providing evidence about what you identify are the key events, stakeholders, issues, and problems. Emphasize what you identify as the most critical aspects of the case to be developed throughout your analysis. Be thorough but succinct.
• Writing is too descriptive . A paper with too much descriptive information detracts from your analysis of the complexities of the case situation. Questions about what happened, where, when, and by whom should only be included as essential information leading to your examination of questions related to why, how, and for what purpose.
• Inadequate definition of a core problem and associated symptoms . A common error found in case analysis papers is recommending a solution or course of action without adequately defining or demonstrating that you understand the problem. Make sure you have clearly described the problem and its impact and scope within the organizational setting. Ensure that you have adequately described the root causes w hen describing the symptoms of the problem.
• Recommendations lack specificity . Identify any use of vague statements and indeterminate terminology, such as, “A particular experience” or “a large increase to the budget.” These statements cannot be measured and, as a result, there is no way to evaluate their successful implementation. Provide specific data and use direct language in describing recommended actions.
• Unrealistic, exaggerated, or unattainable recommendations . Review your recommendations to ensure that they are based on the situational facts of the case. Your recommended solutions and courses of action must be based on realistic assumptions and fit within the constraints of the situation. Also note that the case scenario has already happened, therefore, any speculation or arguments about what could have occurred if the circumstances were different should be revised or eliminated.

Bee, Lian Song et al. "Business Students' Perspectives on Case Method Coaching for Problem-Based Learning: Impacts on Student Engagement and Learning Performance in Higher Education." Education & Training 64 (2022): 416-432; The Case Analysis . Fred Meijer Center for Writing and Michigan Authors. Grand Valley State University; Georgallis, Panikos and Kayleigh Bruijn. "Sustainability Teaching using Case-Based Debates." Journal of International Education in Business 15 (2022): 147-163; Hawes, Jon M. "Teaching is Not Telling: The Case Method as a Form of Interactive Learning." Journal for Advancement of Marketing Education 5 (Winter 2004): 47-54; Georgallis, Panikos, and Kayleigh Bruijn. "Sustainability Teaching Using Case-based Debates." Journal of International Education in Business 15 (2022): 147-163; .Dean,  Kathy Lund and Charles J. Fornaciari. "How to Create and Use Experiential Case-Based Exercises in a Management Classroom." Journal of Management Education 26 (October 2002): 586-603; Klebba, Joanne M. and Janet G. Hamilton. "Structured Case Analysis: Developing Critical Thinking Skills in a Marketing Case Course." Journal of Marketing Education 29 (August 2007): 132-137, 139; Klein, Norman. "The Case Discussion Method Revisited: Some Questions about Student Skills." Exchange: The Organizational Behavior Teaching Journal 6 (November 1981): 30-32; Mukherjee, Arup. "Effective Use of In-Class Mini Case Analysis for Discovery Learning in an Undergraduate MIS Course." The Journal of Computer Information Systems 40 (Spring 2000): 15-23; Pessoa, Silviaet al. "Scaffolding the Case Analysis in an Organizational Behavior Course: Making Analytical Language Explicit." Journal of Management Education 46 (2022): 226-251: Ramsey, V. J. and L. D. Dodge. "Case Analysis: A Structured Approach." Exchange: The Organizational Behavior Teaching Journal 6 (November 1981): 27-29; Schweitzer, Karen. "How to Write and Format a Business Case Study." ThoughtCo. https://www.thoughtco.com/how-to-write-and-format-a-business-case-study-466324 (accessed December 5, 2022); Reddy, C. D. "Teaching Research Methodology: Everything's a Case." Electronic Journal of Business Research Methods 18 (December 2020): 178-188; Volpe, Guglielmo. "Case Teaching in Economics: History, Practice and Evidence." Cogent Economics and Finance 3 (December 2015). doi:https://doi.org/10.1080/23322039.2015.1120977.

Writing Tip

Ca se Study and Case Analysis Are Not the Same!

Confusion often exists between what it means to write a paper that uses a case study research design and writing a paper that analyzes a case; they are two different types of approaches to learning in the social and behavioral sciences. Professors as well as educational researchers contribute to this confusion because they often use the term "case study" when describing the subject of analysis for a case analysis paper. But you are not studying a case for the purpose of generating a comprehensive, multi-faceted understanding of a research problem. R ather, you are critically analyzing a specific scenario to argue logically for recommended solutions and courses of action that lead to optimal outcomes applicable to professional practice.

To avoid any confusion, here are twelve characteristics that delineate the differences between writing a paper using the case study research method and writing a case analysis paper:

• Case study is a method of in-depth research and rigorous inquiry ; case analysis is a reliable method of teaching and learning . A case study is a modality of research that investigates a phenomenon for the purpose of creating new knowledge, solving a problem, or testing a hypothesis using empirical evidence derived from the case being studied. Often, the results are used to generalize about a larger population or within a wider context. The writing adheres to the traditional standards of a scholarly research study. A case analysis is a pedagogical tool used to teach students how to reflect and think critically about a practical, real-life problem in an organizational setting.
• The researcher is responsible for identifying the case to study; a case analysis is assigned by your professor . As the researcher, you choose the case study to investigate in support of obtaining new knowledge and understanding about the research problem. The case in a case analysis assignment is almost always provided, and sometimes written, by your professor and either given to every student in class to analyze individually or to a small group of students, or students select a case to analyze from a predetermined list.
• A case study is indeterminate and boundless; a case analysis is predetermined and confined . A case study can be almost anything [see item 9 below] as long as it relates directly to examining the research problem. This relationship is the only limit to what a researcher can choose as the subject of their case study. The content of a case analysis is determined by your professor and its parameters are well-defined and limited to elucidating insights of practical value applied to practice.
• Case study is fact-based and describes actual events or situations; case analysis can be entirely fictional or adapted from an actual situation . The entire content of a case study must be grounded in reality to be a valid subject of investigation in an empirical research study. A case analysis only needs to set the stage for critically examining a situation in practice and, therefore, can be entirely fictional or adapted, all or in-part, from an actual situation.
• Research using a case study method must adhere to principles of intellectual honesty and academic integrity; a case analysis scenario can include misleading or false information . A case study paper must report research objectively and factually to ensure that any findings are understood to be logically correct and trustworthy. A case analysis scenario may include misleading or false information intended to deliberately distract from the central issues of the case. The purpose is to teach students how to sort through conflicting or useless information in order to come up with the preferred solution. Any use of misleading or false information in academic research is considered unethical.
• Case study is linked to a research problem; case analysis is linked to a practical situation or scenario . In the social sciences, the subject of an investigation is most often framed as a problem that must be researched in order to generate new knowledge leading to a solution. Case analysis narratives are grounded in real life scenarios for the purpose of examining the realities of decision-making behavior and processes within organizational settings. A case analysis assignments include a problem or set of problems to be analyzed. However, the goal is centered around the act of identifying and evaluating courses of action leading to best possible outcomes.
• The purpose of a case study is to create new knowledge through research; the purpose of a case analysis is to teach new understanding . Case studies are a choice of methodological design intended to create new knowledge about resolving a research problem. A case analysis is a mode of teaching and learning intended to create new understanding and an awareness of uncertainty applied to practice through acts of critical thinking and reflection.
• A case study seeks to identify the best possible solution to a research problem; case analysis can have an indeterminate set of solutions or outcomes . Your role in studying a case is to discover the most logical, evidence-based ways to address a research problem. A case analysis assignment rarely has a single correct answer because one of the goals is to force students to confront the real life dynamics of uncertainly, ambiguity, and missing or conflicting information within professional practice. Under these conditions, a perfect outcome or solution almost never exists.
• Case study is unbounded and relies on gathering external information; case analysis is a self-contained subject of analysis . The scope of a case study chosen as a method of research is bounded. However, the researcher is free to gather whatever information and data is necessary to investigate its relevance to understanding the research problem. For a case analysis assignment, your professor will often ask you to examine solutions or recommended courses of action based solely on facts and information from the case.
• Case study can be a person, place, object, issue, event, condition, or phenomenon; a case analysis is a carefully constructed synopsis of events, situations, and behaviors . The research problem dictates the type of case being studied and, therefore, the design can encompass almost anything tangible as long as it fulfills the objective of generating new knowledge and understanding. A case analysis is in the form of a narrative containing descriptions of facts, situations, processes, rules, and behaviors within a particular setting and under a specific set of circumstances.
• Case study can represent an open-ended subject of inquiry; a case analysis is a narrative about something that has happened in the past . A case study is not restricted by time and can encompass an event or issue with no temporal limit or end. For example, the current war in Ukraine can be used as a case study of how medical personnel help civilians during a large military conflict, even though circumstances around this event are still evolving. A case analysis can be used to elicit critical thinking about current or future situations in practice, but the case itself is a narrative about something finite and that has taken place in the past.
• Multiple case studies can be used in a research study; case analysis involves examining a single scenario . Case study research can use two or more cases to examine a problem, often for the purpose of conducting a comparative investigation intended to discover hidden relationships, document emerging trends, or determine variations among different examples. A case analysis assignment typically describes a stand-alone, self-contained situation and any comparisons among cases are conducted during in-class discussions and/or student presentations.

The Case Analysis . Fred Meijer Center for Writing and Michigan Authors. Grand Valley State University; Mills, Albert J. , Gabrielle Durepos, and Eiden Wiebe, editors. Encyclopedia of Case Study Research . Thousand Oaks, CA: SAGE Publications, 2010; Ramsey, V. J. and L. D. Dodge. "Case Analysis: A Structured Approach." Exchange: The Organizational Behavior Teaching Journal 6 (November 1981): 27-29; Yin, Robert K. Case Study Research and Applications: Design and Methods . 6th edition. Thousand Oaks, CA: Sage, 2017; Crowe, Sarah et al. “The Case Study Approach.” BMC Medical Research Methodology 11 (2011):  doi: 10.1186/1471-2288-11-100; Yin, Robert K. Case Study Research: Design and Methods . 4th edition. Thousand Oaks, CA: Sage Publishing; 1994.

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9 Components of a Case Study You Absolutely Need to Include

SaaS case studies help you educate prospects on the value of your products and the results your customers have achieved. To make your case study creation process easier, it’s crucial to follow a format. In this post, learn the 9 components of a case study you need to include in order to provide the social proof your prospects are looking for.

This is the first post in a 9-part series on how to write a B2B case study .

Must-have components of a case study

1. a compelling executive summary.

One of the most important components of a case study is a powerful executive summary . It lets your reader know what they’re getting into, and how they might relate to and benefit from what they’ll learn. Firstly, it needs to introduce your customer and their challenges. Secondly, it should highlight how your B2B SaaS company helped deliver the right solution. And be sure to include a preview of the results your customer saw from your products.

2. Outline your customer’s challenges

Illustrating the obstacles your customer faced that prompted them to seek out a B2B SaaS solution is one of the most crucial components of a case study. For example, maybe their business processes were a drain on time, resources or budgets—or all of the above. This section is an ideal spot to use a customer quote and let them share their story in their words. Remember to paint your customer in a positive light. And focus on how they wanted to improve their business, and avoid overly negative language.

3. Lead your reader along your customer’s journey

Help your reader picture themselves in your customer’s shoes. Lay out the steps your customer took to try to solve their problem, including an overview of the other products they investigated before they decided on yours. But be mindful not to toot your own horn—you’re simply recapping the facts.

4. The moment of discovery

The core elements of a case study wouldn’t be complete without a section on how your customer decided on your specific B2B SaaS solution. First, provide insight into which of their business requirements it met. Then include any other reasons the partnership was a good fit—perhaps your companies shared similar organizational values. This is an area where case study testimonials make for powerful storytelling . They allow you to set your case study up to dive into how you and your product solved your customer’s challenges.

5. Spend some time on the solution

In the “solution” component of your case study, you get to pitch your products without the fear of sounding like a used car salesman. Remember, you didn’t rush in and save the day—this is about your customer’s goals and how your solution helped them reach their objectives. As a result, you simply need to outline the products your customer purchased and the benefits they provided.

6. Walk your reader through the implementation

Change can be daunting, especially when it comes to the unknown, so it’s crucial that you give your reader a clear sense of how the implementation process went for your customer. For example, if problems arose, don’t be afraid to be transparent about them, but tie the storyline back to how you and your customer overcame the challenges. This is one of the most important components of a case study, and is an opportunity to let your customer service shine.

7. Celebrate your customer’s results

77% of SaaS companies include metrics in at least 50% of their case studies . Metrics are where you can show off the data—hard numbers like revenue gains and time saved that illustrate the return on investment your customer gained from your solution. Showcase how well your products solved the customer’s problems. Find out what to do if you don’t have case study metrics to work with.

8. Close the loop with a call to action

Using the right components of a case study so far has helped keep your reader’s attention until the end of the piece, creating an important opportunity for you to guide them to the next step you want them to take. You can accomplish this by including a clear call to action (CTA) that speaks directly to them at the end of your B2B SaaS case study. See these case study CTA examples to learn how to make your calls to action stand out.

9. Don’t get too caught up in using the perfect format

A lot of experts will tell you that your content needs to include all of the components of a case study and follow a structured formula. But don’t stress over this.

A creative story doesn’t lock itself into anything too prescriptive. And you don’t have to chunk your content into specific modules like some ’90s business plan. The most interesting and compelling stories take a creative approach to case study layout , and they play with perspective.

9 components of a case study: did you include them all?

Now that you know the 9 parts of a case study, take a look back through your own case studies. Have you included each of the components?

And last, but certainly not least, have you squeezed every last ounce of value from your case studies? Here are 8 ways to fully leverage your case studies for maximum results.

Get help writing your case studies

Partnering with a SaaS content marketing agency like Uplift Content allows you to produce a consistent flow of high-quality marketing and sales collateral that generates and nurtures leads—and closes sales faster. Check out our case study writing services .

As the founder of Uplift Content, Emily leads her team in creating done-for-you case studies, ebooks and blog posts for high-growth SaaS companies like ClickUp, Calendly and WalkMe. Connect with Emily on Linkedin

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Home » Case Study – Methods, Examples and Guide

Case Study – Methods, Examples and Guide

Table of Contents

A case study is a research method that involves an in-depth examination and analysis of a particular phenomenon or case, such as an individual, organization, community, event, or situation.

It is a qualitative research approach that aims to provide a detailed and comprehensive understanding of the case being studied. Case studies typically involve multiple sources of data, including interviews, observations, documents, and artifacts, which are analyzed using various techniques, such as content analysis, thematic analysis, and grounded theory. The findings of a case study are often used to develop theories, inform policy or practice, or generate new research questions.

Types of Case Study

Types and Methods of Case Study are as follows:

Single-Case Study

A single-case study is an in-depth analysis of a single case. This type of case study is useful when the researcher wants to understand a specific phenomenon in detail.

For Example , A researcher might conduct a single-case study on a particular individual to understand their experiences with a particular health condition or a specific organization to explore their management practices. The researcher collects data from multiple sources, such as interviews, observations, and documents, and uses various techniques to analyze the data, such as content analysis or thematic analysis. The findings of a single-case study are often used to generate new research questions, develop theories, or inform policy or practice.

Multiple-Case Study

A multiple-case study involves the analysis of several cases that are similar in nature. This type of case study is useful when the researcher wants to identify similarities and differences between the cases.

For Example, a researcher might conduct a multiple-case study on several companies to explore the factors that contribute to their success or failure. The researcher collects data from each case, compares and contrasts the findings, and uses various techniques to analyze the data, such as comparative analysis or pattern-matching. The findings of a multiple-case study can be used to develop theories, inform policy or practice, or generate new research questions.

Exploratory Case Study

An exploratory case study is used to explore a new or understudied phenomenon. This type of case study is useful when the researcher wants to generate hypotheses or theories about the phenomenon.

For Example, a researcher might conduct an exploratory case study on a new technology to understand its potential impact on society. The researcher collects data from multiple sources, such as interviews, observations, and documents, and uses various techniques to analyze the data, such as grounded theory or content analysis. The findings of an exploratory case study can be used to generate new research questions, develop theories, or inform policy or practice.

Descriptive Case Study

A descriptive case study is used to describe a particular phenomenon in detail. This type of case study is useful when the researcher wants to provide a comprehensive account of the phenomenon.

For Example, a researcher might conduct a descriptive case study on a particular community to understand its social and economic characteristics. The researcher collects data from multiple sources, such as interviews, observations, and documents, and uses various techniques to analyze the data, such as content analysis or thematic analysis. The findings of a descriptive case study can be used to inform policy or practice or generate new research questions.

Instrumental Case Study

An instrumental case study is used to understand a particular phenomenon that is instrumental in achieving a particular goal. This type of case study is useful when the researcher wants to understand the role of the phenomenon in achieving the goal.

For Example, a researcher might conduct an instrumental case study on a particular policy to understand its impact on achieving a particular goal, such as reducing poverty. The researcher collects data from multiple sources, such as interviews, observations, and documents, and uses various techniques to analyze the data, such as content analysis or thematic analysis. The findings of an instrumental case study can be used to inform policy or practice or generate new research questions.

Case Study Data Collection Methods

Here are some common data collection methods for case studies:

Interviews involve asking questions to individuals who have knowledge or experience relevant to the case study. Interviews can be structured (where the same questions are asked to all participants) or unstructured (where the interviewer follows up on the responses with further questions). Interviews can be conducted in person, over the phone, or through video conferencing.

Observations

Observations involve watching and recording the behavior and activities of individuals or groups relevant to the case study. Observations can be participant (where the researcher actively participates in the activities) or non-participant (where the researcher observes from a distance). Observations can be recorded using notes, audio or video recordings, or photographs.

Documents can be used as a source of information for case studies. Documents can include reports, memos, emails, letters, and other written materials related to the case study. Documents can be collected from the case study participants or from public sources.

Surveys involve asking a set of questions to a sample of individuals relevant to the case study. Surveys can be administered in person, over the phone, through mail or email, or online. Surveys can be used to gather information on attitudes, opinions, or behaviors related to the case study.

Artifacts are physical objects relevant to the case study. Artifacts can include tools, equipment, products, or other objects that provide insights into the case study phenomenon.

How to conduct Case Study Research

Conducting a case study research involves several steps that need to be followed to ensure the quality and rigor of the study. Here are the steps to conduct case study research:

• Define the research questions: The first step in conducting a case study research is to define the research questions. The research questions should be specific, measurable, and relevant to the case study phenomenon under investigation.
• Select the case: The next step is to select the case or cases to be studied. The case should be relevant to the research questions and should provide rich and diverse data that can be used to answer the research questions.
• Collect data: Data can be collected using various methods, such as interviews, observations, documents, surveys, and artifacts. The data collection method should be selected based on the research questions and the nature of the case study phenomenon.
• Analyze the data: The data collected from the case study should be analyzed using various techniques, such as content analysis, thematic analysis, or grounded theory. The analysis should be guided by the research questions and should aim to provide insights and conclusions relevant to the research questions.
• Draw conclusions: The conclusions drawn from the case study should be based on the data analysis and should be relevant to the research questions. The conclusions should be supported by evidence and should be clearly stated.
• Validate the findings: The findings of the case study should be validated by reviewing the data and the analysis with participants or other experts in the field. This helps to ensure the validity and reliability of the findings.
• Write the report: The final step is to write the report of the case study research. The report should provide a clear description of the case study phenomenon, the research questions, the data collection methods, the data analysis, the findings, and the conclusions. The report should be written in a clear and concise manner and should follow the guidelines for academic writing.

Examples of Case Study

Here are some examples of case study research:

• The Hawthorne Studies : Conducted between 1924 and 1932, the Hawthorne Studies were a series of case studies conducted by Elton Mayo and his colleagues to examine the impact of work environment on employee productivity. The studies were conducted at the Hawthorne Works plant of the Western Electric Company in Chicago and included interviews, observations, and experiments.
• The Stanford Prison Experiment: Conducted in 1971, the Stanford Prison Experiment was a case study conducted by Philip Zimbardo to examine the psychological effects of power and authority. The study involved simulating a prison environment and assigning participants to the role of guards or prisoners. The study was controversial due to the ethical issues it raised.
• The Challenger Disaster: The Challenger Disaster was a case study conducted to examine the causes of the Space Shuttle Challenger explosion in 1986. The study included interviews, observations, and analysis of data to identify the technical, organizational, and cultural factors that contributed to the disaster.
• The Enron Scandal: The Enron Scandal was a case study conducted to examine the causes of the Enron Corporation’s bankruptcy in 2001. The study included interviews, analysis of financial data, and review of documents to identify the accounting practices, corporate culture, and ethical issues that led to the company’s downfall.
• The Fukushima Nuclear Disaster : The Fukushima Nuclear Disaster was a case study conducted to examine the causes of the nuclear accident that occurred at the Fukushima Daiichi Nuclear Power Plant in Japan in 2011. The study included interviews, analysis of data, and review of documents to identify the technical, organizational, and cultural factors that contributed to the disaster.

Application of Case Study

Case studies have a wide range of applications across various fields and industries. Here are some examples:

Business and Management

Case studies are widely used in business and management to examine real-life situations and develop problem-solving skills. Case studies can help students and professionals to develop a deep understanding of business concepts, theories, and best practices.

Case studies are used in healthcare to examine patient care, treatment options, and outcomes. Case studies can help healthcare professionals to develop critical thinking skills, diagnose complex medical conditions, and develop effective treatment plans.

Case studies are used in education to examine teaching and learning practices. Case studies can help educators to develop effective teaching strategies, evaluate student progress, and identify areas for improvement.

Social Sciences

Case studies are widely used in social sciences to examine human behavior, social phenomena, and cultural practices. Case studies can help researchers to develop theories, test hypotheses, and gain insights into complex social issues.

Law and Ethics

Case studies are used in law and ethics to examine legal and ethical dilemmas. Case studies can help lawyers, policymakers, and ethical professionals to develop critical thinking skills, analyze complex cases, and make informed decisions.

Purpose of Case Study

The purpose of a case study is to provide a detailed analysis of a specific phenomenon, issue, or problem in its real-life context. A case study is a qualitative research method that involves the in-depth exploration and analysis of a particular case, which can be an individual, group, organization, event, or community.

The primary purpose of a case study is to generate a comprehensive and nuanced understanding of the case, including its history, context, and dynamics. Case studies can help researchers to identify and examine the underlying factors, processes, and mechanisms that contribute to the case and its outcomes. This can help to develop a more accurate and detailed understanding of the case, which can inform future research, practice, or policy.

Case studies can also serve other purposes, including:

• Illustrating a theory or concept: Case studies can be used to illustrate and explain theoretical concepts and frameworks, providing concrete examples of how they can be applied in real-life situations.
• Developing hypotheses: Case studies can help to generate hypotheses about the causal relationships between different factors and outcomes, which can be tested through further research.
• Providing insight into complex issues: Case studies can provide insights into complex and multifaceted issues, which may be difficult to understand through other research methods.
• Informing practice or policy: Case studies can be used to inform practice or policy by identifying best practices, lessons learned, or areas for improvement.

Advantages of Case Study Research

There are several advantages of case study research, including:

• In-depth exploration: Case study research allows for a detailed exploration and analysis of a specific phenomenon, issue, or problem in its real-life context. This can provide a comprehensive understanding of the case and its dynamics, which may not be possible through other research methods.
• Rich data: Case study research can generate rich and detailed data, including qualitative data such as interviews, observations, and documents. This can provide a nuanced understanding of the case and its complexity.
• Holistic perspective: Case study research allows for a holistic perspective of the case, taking into account the various factors, processes, and mechanisms that contribute to the case and its outcomes. This can help to develop a more accurate and comprehensive understanding of the case.
• Theory development: Case study research can help to develop and refine theories and concepts by providing empirical evidence and concrete examples of how they can be applied in real-life situations.
• Practical application: Case study research can inform practice or policy by identifying best practices, lessons learned, or areas for improvement.
• Contextualization: Case study research takes into account the specific context in which the case is situated, which can help to understand how the case is influenced by the social, cultural, and historical factors of its environment.

Limitations of Case Study Research

There are several limitations of case study research, including:

• Limited generalizability : Case studies are typically focused on a single case or a small number of cases, which limits the generalizability of the findings. The unique characteristics of the case may not be applicable to other contexts or populations, which may limit the external validity of the research.
• Biased sampling: Case studies may rely on purposive or convenience sampling, which can introduce bias into the sample selection process. This may limit the representativeness of the sample and the generalizability of the findings.
• Subjectivity: Case studies rely on the interpretation of the researcher, which can introduce subjectivity into the analysis. The researcher’s own biases, assumptions, and perspectives may influence the findings, which may limit the objectivity of the research.
• Limited control: Case studies are typically conducted in naturalistic settings, which limits the control that the researcher has over the environment and the variables being studied. This may limit the ability to establish causal relationships between variables.
• Time-consuming: Case studies can be time-consuming to conduct, as they typically involve a detailed exploration and analysis of a specific case. This may limit the feasibility of conducting multiple case studies or conducting case studies in a timely manner.
• Resource-intensive: Case studies may require significant resources, including time, funding, and expertise. This may limit the ability of researchers to conduct case studies in resource-constrained settings.

About the author

Muhammad Hassan

Researcher, Academic Writer, Web developer

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• Open access
• Published: 10 April 2024

“So at least now I know how to deal with things myself, what I can do if it gets really bad again”—experiences with a long-term cross-sectoral advocacy care and case management for severe multiple sclerosis: a qualitative study

• Anne Müller   ORCID: orcid.org/0000-0002-2456-2492 1 ,
• Fabian Hebben   ORCID: orcid.org/0009-0003-6401-3433 1 ,
• Kim Dillen 1 ,
• Veronika Dunkl 1 ,
• Yasemin Goereci 2 ,
• Raymond Voltz 1 , 3 , 4 ,
• Peter Löcherbach 5 ,
• Clemens Warnke   ORCID: orcid.org/0000-0002-3510-9255 2 &
• Heidrun Golla   ORCID: orcid.org/0000-0002-4403-630X 1

on behalf of the COCOS-MS trial group represented by Martin Hellmich

BMC Health Services Research volume  24 , Article number:  453 ( 2024 ) Cite this article

Metrics details

Persons with severe Multiple Sclerosis (PwsMS) face complex needs and daily limitations that make it challenging to receive optimal care. The implementation and coordination of health care, social services, and support in financial affairs can be particularly time consuming and burdensome for both PwsMS and caregivers. Care and case management (CCM) helps ensure optimal individual care as well as care at a higher-level. The goal of the current qualitative study was to determine the experiences of PwsMS, caregivers and health care specialists (HCSs) with the CCM.

In the current qualitative sub study, as part of a larger trial, in-depth semi-structured interviews with PwsMS, caregivers and HCSs who had been in contact with the CCM were conducted between 02/2022 and 01/2023. Data was transcribed, pseudonymized, tested for saturation and analyzed using structuring content analysis according to Kuckartz. Sociodemographic and interview characteristics were analyzed descriptively.

Thirteen PwsMS, 12 caregivers and 10 HCSs completed interviews. Main categories of CCM functions were derived deductively: (1) gatekeeper function, (2) broker function, (3) advocacy function, (4) outlook on CCM in standard care. Subcategories were then derived inductively from the interview material. 852 segments were coded. Participants appreciated the CCM as a continuous and objective contact person, a person of trust (92 codes), a competent source of information and advice (on MS) (68 codes) and comprehensive cross-insurance support (128 codes), relieving and supporting PwsMS, their caregivers and HCSs (67 codes).

Conclusions

Through the cross-sectoral continuous support in health-related, social, financial and everyday bureaucratic matters, the CCM provides comprehensive and overriding support and relief for PwsMS, caregivers and HCSs. This intervention bears the potential to be fine-tuned and applied to similar complex patient groups.

Trial registration

The study was approved by the Ethics Committee of the University of Cologne (#20–1436), registered at the German Register for Clinical Studies (DRKS00022771) and in accordance with the Declaration of Helsinki.

Peer Review reports

Introduction

Multiple sclerosis (MS) is the most frequent and incurable chronic inflammatory and degenerative disease of the central nervous system (CNS). Illness awareness and the number of specialized MS clinics have increased since the 1990s, paralleled by the increased availability of disease-modifying therapies [ 1 ]. There are attempts in the literature for the definition of severe MS [ 2 , 3 ]. These include a high EDSS (Expanded disability Status Scale [ 4 ]) of ≥ 6, which we took into account in our study. There are also other factors to consider, such as a highly active disease course with complex therapies that are associated with side effects. These persons are (still) less disabled, but may feel overwhelmed with regard to therapy, side effects and risk monitoring of therapies [ 5 , 6 ].

Persons with severe MS (PwsMS) develop individual disease trajectories marked by a spectrum of heterogeneous symptoms, functional limitations, and uncertainties [ 7 , 8 ] manifesting individually and unpredictably [ 9 ]. This variability can lead to irreversible physical and mental impairment culminating in complex needs and daily challenges, particularly for those with progressive and severe MS [ 5 , 10 , 11 ]. Such challenges span the spectrum from reorganizing biographical continuity and organizing care and everyday live, to monitoring disease-specific therapies and integrating palliative and hospice care [ 5 , 10 ]. Moreover, severe MS exerts a profound of social and economic impact [ 9 , 12 , 13 , 14 ]. PwsMS and their caregivers (defined in this manuscript as relatives or closely related individuals directly involved in patients’ care) often find themselves grappling with overwhelming challenges. The process of organizing and coordinating optimal care becomes demanding, as they contend with the perceived unmanageability of searching for, implementing and coordinating health care and social services [ 5 , 15 , 16 , 17 ].

Case management (CM) proved to have a positive effect on patients with neurological disorders and/or patients with palliative care needs [ 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ]. However, a focus on severe MS has been missed so far Case managers primarily function as: (1) gatekeeper involving the allocation of necessary and available resources to a case, ensuring the equitable distribution of resources; as (2) broker assisting clients in pursuing their interests, requiring negotiation to provide individualized assistance that aligns as closely as possible with individual needs and (3) advocate working to enhance clients’ individual autonomy, to advocate for essential care offers, and to identify gaps in care [ 25 , 26 , 27 , 28 , 29 ].

Difficulties in understanding, acting, and making decisions regarding health care-related aspects (health literacy) poses a significant challenge for 54% of the German population [ 30 ]. Additionally acting on a superordinate level as an overarching link, a care and case management (CCM) tries to reduce disintegration in the social and health care system [ 31 , 32 ]. Our hypothesis is that a CCM allows PwsMS and their caregivers to regain time and resources outside of disease management and to facilitate the recovery and establishment of biographical continuity that might be disrupted due to severe MS [ 33 , 34 ].

Health care specialists (HCSs) often perceive their work with numerous time and economic constraints, especially when treating complex and severely ill individuals like PwsMS and often have concerns about being blamed by patients when expectations could not be met [ 35 , 36 ]. Our hypothesis is that the CCM will help to reduce time constraints and free up resources for specialized tasks.

To the best of our knowledge there is no long-term cross-sectoral and outreaching authority or service dedicated to assisting in the organization and coordination of the complex care concerns of PwsMS within the framework of standard care addressing needs in health, social, financial, every day and bureaucratic aspects. While some studies have attempted to design and test care programs for persons with MS (PwMS), severely affected individuals were often not included [ 37 , 38 , 39 ]. They often remain overlooked by existing health and social care structures [ 5 , 9 , 15 ].

The COCOS-MS trial developed and applied a long-term cross-sectoral CCM intervention consisting of weekly telephone contacts and monthly re-assessments with PwsMS and caregivers, aiming to provide optimal care. Their problems, resources and (unmet) needs were assessed holistically including physical health, mental health, self-sufficiency and social situation and participation. Based on assessed (unmet) needs, individual care plans with individual actions and goals were developed and constantly adapted during the CCM intervention. Contacts with HCSs were established to ensure optimal care. The CCM intervention was structured through and documented in a CCM manual designed for the trial [ 40 , 41 ].

Our aim was to find out how PwsMS, caregivers and HCSs experienced the cross-sectoral long-term, outreaching patient advocacy CCM.

This study is part of a larger phase II, randomized, controlled clinical trial “Communication, Coordination and Security for people with severe Multiple Sclerosis (COCOS-MS)” [ 41 ]. This explorative clinical trial, employing a mixed-method design, incorporates a qualitative study component with PwsMS, caregivers and HCSs to enrich the findings of the quantitative data. This manuscript focuses on the qualitative data collected between February 2022 and January 2023, following the Consolidated Criteria for Reporting Qualitative Research (COREQ) guidelines [ 42 ].

Research team

Three trained authors AM, KD and FH (AM, female, research associate, M.A. degree in Rehabilitation Sciences; KD, female, researcher, Dr. rer. medic.; FH, male, research assistant, B.Sc. degree in Health Care Management), who had no prior relationship with patients, caregivers or HCSs conducted qualitative interviews. A research team, consisting of clinical experts and health services researchers, discussed the development of the interview guides and the finalized category system.

Theoretical framework

Interview data was analyzed with the structuring content analysis according to Kuckartz. This method enables a deductive structuring of interview material, as well as the integration of new aspects found in the interview material through the inductive addition of categories in an iterative analysis process [ 43 ].

Sociodemographic and interview characteristics were analyzed descriptively (mean, median, range, SD). PwsMS, caregivers and HCSs were contacted by the authors AM, KD or FH via telephone or e-mail after providing full written informed consent. Participants had the option to choose between online interviews conducted via the GoToMeeting 10.19.0® Software or face-to-face. Peasgood et al. (2023) found no significant differences in understanding questions, engagement or concentration between face-to-face and online interviews [ 44 , 45 ]. Digital assessments were familiar to participants due to pandemic-related adjustments within the trial.

Out of 14 PwsMS and 14 caregivers who were approached to participate in interviews, three declined to complete interviews, resulting in 13 PwsMS (5 male, 8 female) and 12 caregiver (7 male, 5 female) interviews, respectively (see Fig.  1 ). Thirty-one HCSs were contacted of whom ten (2 male, 8 female) agreed to be interviewed (see Fig.  2 ).

Flowchart of PwsMS and caregiver participation in the intervention group of the COCOS-MS trial. Patients could participate with and without a respective caregiver taking part in the trial. Therefore, number of caregivers does not correspond to patients. For detailed inclusion criteria see also Table  1 in Golla et al. [ 41 ]

Flowchart of HCSs interview participation

Setting and data collection

Interviews were carried out where participants preferred, e.g. at home, workplace, online, and no third person being present. In total, we conducted 35 interviews whereof 7 interviews face-to-face (3 PwsMS, 3 caregivers, 1 HCS).

The research team developed a topic guide which was meticulously discussed with research and clinical staff to enhance credibility. It included relevant aspects for the evaluation of the CCM (see Tables  1 and 2 , for detailed topic guides see Supplementary Material ). Patient and caregiver characteristics (covering age, sex, marital status, living situation, EDSS (patients only), subgroup) were collected during the first assessment of the COCOS-MS trial and HCSs characteristics (age, sex, profession) as well as interview information (length and setting) were collected during the interviews. The interview guides developed for this study addressed consistent aspects both for PwsMS and caregivers (see Supplementary Material ):

For HCSs it contained the following guides:

Probing questions were asked to get more specific and in-depth information. Interviews were carried out once and recorded using a recording device or the recording function of the GoToMeeting 10.19.0® Software. Data were pseudonymized (including sensitive information, such as personal names, dates of birth, or addresses), audio files were safely stored in a data protection folder. The interview duration ranged from 11 to 56 min (mean: 23.9 min, SD: 11.1 min). Interviews were continued until we found that data saturation was reached. Audio recordings were transcribed verbatim by an external source and not returned to participants.

Data analysis

Two coders (AM, FH) coded the interviews. Initially, the first author (AM) thoroughly reviewed the transcripts to gain a sense of the interview material. Using the topic guide and literature, she deductively developed a category system based on the primary functions of CM [ 25 , 26 , 27 , 28 , 29 ]. Three interviews were coded repeatedly for piloting, and inductive subcategories were added when new themes emerged in the interview material. This category system proved suitable for the interview material. The second coder (FH) familiarized himself with the interview material and category system. Both coders (AM, FH) independently coded all interviews, engaging in discussions and adjusting codes iteratively. The finalized category system was discussed and consolidated in a research workshop and within the COCOS-MS trial group and finally we reached an intercoder agreement of 90% between the two coders AM and FH, computed by the MAXQDA Standard 2022® software.

We analyzed sociodemographic and interview characteristics using IBM SPSS Statistics 27® and Excel 2016®. Transcripts were managed and analyzed using MAXQDA Standard 2022®.

Participants were provided with oral and written information about the trial and gave written informed consent. Ethical approvals were obtained from the Ethics Committee of the University of Cologne (#20–1436). The trial is registered in the German Register for Clinical Studies (DRKS) (DRKS00022771) and is conducted under the Declaration of Helsinki.

Characteristics of participants and interviews

PwsMS participating in an interview were mainly German (84.6%), had a mean EDSS of 6.8 (range: 6–8) and MS for 13.5 years (median: 14; SD: 8.1). For detailed characteristics see Table  3 .

Most of the interviewed caregivers (9 caregivers) were the partners of the PwsMS with whom they lived in the same household. For further details see Table  3 .

HCSs involved in the study comprised various professions, including MS-nurse (3), neurologist (2), general physician with further training in palliative care (1), physician with further training in palliative care and pain therapist (1), housing counselling service (1), outpatient nursing service manager (1), participation counselling service (1).

Structuring qualitative content analysis

The experiences of PwsMS, caregivers and HCSs were a priori deductively assigned to four main categories: (1) gatekeeper function, (2) broker function, (3) advocacy function [ 25 , 26 , 27 , 28 , 29 ] and (4) Outlook on CCM in standard care, whereas the subcategories were developed inductively (see Fig.  3 ).

Category system including main and subcategories of the qualitative thematic content analysis

The most extensive category, housing the highest number of codes and subcodes, was the “ Outlook on CCM in standard care ” (281 codes). Following this, the category “ Advocacy Function ” contained 261 codes. The “ Broker Function ” (150 codes) and the “ Gatekeeper Function ” (160 codes) constituted two smaller categories. The majority of codes was identified in the caregivers’ interviews, followed by those of PwsMS (see Table  4 ). Illustrative quotes for each category and subcategory can be found in Table  5 .

Persons with severe multiple sclerosis

In the gatekeeper function (59 codes), PwsMS particularly valued the CCM as a continuous contact person . They appreciated the CCM as a person of trust who was reliably accessible throughout the intervention period. This aspect, with 41 codes, held significant importance for PwsMS.

Within the broker function (44 codes), establishing contact was most important for PwsMS (22 codes). This involved the CCM as successfully connecting PwsMS and caregivers with physicians and therapists, as well as coordinating and arranging medical appointments, which were highly valued. Assistance in authority and health and social insurance matters (10 codes) was another subcategory, where the CCM encompassed support in communication with health insurance companies, such as improving the level of care, assisting with retirement pension applications, and facilitating rehabilitation program applications. Optimized care (12 codes) resulted in improved living conditions and the provision of assistive devices through the CCM intervention.

The advocacy function (103 codes) emerged as the most critical aspect for PwsMS, representing the core of the category system. PwsMS experienced multidimensional, comprehensive, cross-insurance system support from the CCM. This category, with 43 statements, was the largest within all subcategories. PwsMS described the CCM as addressing their concerns, providing help, and assisting with the challenges posed by the illness in everyday life. The second-largest subcategory, regaining, maintaining and supporting autonomy (25 codes), highlighted the CCM’s role in supporting self-sufficiency and independence. Reviving personal wellbeing (17 codes) involved PwsMSs’ needs of regaining positive feelings, improved quality of life, and a sense of support and acceptance, which could be improved by the CCM. Temporal relief (18 codes) was reported, with the CCM intervention taking over or reducing tasks.

Within the outlook on CCM in standard care (84 codes), eight subcategories were identified. Communications was described as friendly and open (9 codes), with the setting of communication (29 codes) including the frequency of contacts deemed appropriate by the interviewed PwsMS, who preferred face-to-face contact over virtual or telephone interactions. Improvement suggestions for CCM (10 codes) predominantly revolved around the desire for the continuation of the CCM beyond the trial, expressing intense satisfaction with the CCM contact person and program. PwsMS rarely wished for better cooperation with the CCM. With respect to limitations (7 codes), PwsMS distinguished between individual limitations (e.g. when not feeling ready for using a wheelchair) and overriding structural limitations (e.g. unsuccessful search for an accessible apartment despite CCM support). Some PwsMS mentioned needing the CCM earlier in the course of the disease and believed it would beneficial for anyone with a chronic illness (6 codes).

In the gatekeeper function (75 codes), caregivers highly valued the CCM as a continuous contact partner (33 codes). More frequently than among the PwsMS interviewed, caregivers valued the CCM as a source of consultation/ information on essential individual subjects (42 codes). The need for basic information about the illness, its potential course, treatment and therapy options, possible supportive equipment, and basic medical advice/ information could be met by the CCM.

Within the broker function (63 codes), caregivers primarily experienced the subcategory establish contacts (24 codes). They found the CCM as helpful in establishing and managing contact with physicians, therapists and especially with health insurance companies. In the subcategory assistance in authority and health and social insurance matters (22 codes), caregivers highlighted similar aspects as the PwsMS interviewed. However, there was a particular emphasis on assistance with patients' retirement matters. Caregivers also valued the optimization of patients’ care and living environment (17 codes) in various life areas during the CCM intervention, including improved access to assistive devices, home modification, and involvement of a household support and/ or nursing services.

The advocacy function, with 115 codes, was by far the broadest category . The subcategory multidimensional, comprehensive, cross-insurance system support represented the largest subcategory of caregivers, with 70 statements. In summary, caregivers felt supported by the CCM in all domains of life. Regaining, maintaining and supporting autonomy (11 codes) and reviving personal wellbeing (8 codes) in the form of an improved quality of life played a role not only for patients but also for caregivers, albeit to a lower extend. Caregivers experienced temporal relief (26 codes) as the CCM undertook a wide range of organizational tasks, freeing up more needed resources for their own interests.

For the Outlook on CCM in standard care , caregivers provided various suggestions (81 codes). Similar to PwsMS, caregivers felt that setting (home based face-to-face, telephone, virtual) and frequency of contact were appropriate (10 codes, communication setting ) and communications (7 codes) were recognized as open and friendly. However, to avoid conflicts between caregiver and PwsMS, caregivers preferred meeting the CCM separately from the PwsMS in the future. Some caregivers wished the CCM to specify all services it might offer at the beginning, while others emphasized not wanting this. Like PwsMS, caregivers criticized the CCM intervention being (trial-related) limited to one year, regardless of whether further support was needed or processes being incomplete (13 codes, improvement suggestions ). After the CCM intervention time had expired, the continuous contact person and assistance were missed and new problems had arisen and had to be managed with their own resources again (9 codes, effects of CCM discontinuation ), which was perceived as an exhausting or unsolvable endeavor. Caregivers identified analogous limitations (8 codes), both individual and structural. However, the largest subcategory, was the experienced potential of CCM (27 codes), reflected in extremely high satisfaction with the CCM intervention. Like PwsMS, caregivers regarded severe chronically ill persons in general as target groups for a CCM (7 codes) and would implement it even earlier, starting from the time of diagnosis. They considered a CCM to be particularly helpful for patients without caregivers or for caregivers with limited (time) resources, as it was true for most caregivers.

Health care specialists

In the gatekeeper function (26 codes) HCSs particularly valued the CCM as a continuous contact partner (18 codes). They primarily described their valuable collaboration with the CCM, emphasizing professional exchange between the CCM and HCSs.

Within the broker function (43 codes), the CCM was seen as a connecting link between patients and HCSs, frequently establishing contacts (18 codes). This not only improved optimal care on an individual patient level (case management) but also at a higher, superordinate care level (care management). HCSs appreciated the optimized care and living environment (18 codes) for PwsMS, including improved medical and therapeutic access and the introduction of new assistive devices. The CCM was also recognized as providing assistance in authority and health and social matters (7 codes) for PwsMS and their caregivers.

In the advocacy function (43 codes), HCSs primarily reported temporal relief through CCM intervention (23 codes). They experienced this relief, especially as the CCM provided multidimensional, comprehensive, and cross-insurance system support (15 codes) for PwsMS and their caregivers. Through this support, HCSs felt relieved from time intensive responsibilities that may not fall within their area of expertise, freeing up more time resources for their actual professional tasks.

The largest category within the HCSs interviews was the outlook on CCM in standard care (116 codes). In the largest subcategory, HCSs made suggestions for further patient groups who could benefit (38 codes) from a CCM. Chronic neurological diseases like neurodegenerative diseases (e.g. amyotrophic lateral sclerosis), typical and atypical Parkinson syndromes were mentioned. HCSs considered the enrollment of the CCM directly after the diagnosis of these complex chronic diseases. Additionally, chronic progressive diseases in general or oncological diseases, which may also run chronically, were regarded worthwhile for this approach. HCSs also provided suggestions regarding improvement (21 codes). They wished e.g. for information or contact when patients were enrolled to the CCM, regular updates, exchange and collaborative effort. On the other hand, HCSs reported, that their suggestions for improvement would hardly be feasible due to their limited time resources. Similar to patients and caregivers, HCSs experienced structural limits (13 codes), which a CCM could not exceed due to overriding structural limitations (e.g. insufficient supply of (household) aids, lack of outreach services like psychotherapists, and long processing times on health and pension insurers' side). HCSs were also asked about their opinions on financial resources (14 codes) of a CCM in standard care. All interviewed HCSs agreed that CCM would initially cause more costs for health and social insurers, but they were convinced of cost savings in the long run. HCSs particularly perceived the potential of the CCM (20 codes) through the feedback of PwsMS, highlighting the trustful relationship enabling individualized help for PwsMS and their caregivers.

Persons with severe multiple sclerosis and their caregivers

The long-term cross-sectoral CCM intervention implemented in the COCOS-MS trial addressed significant unmet needs of PwsMS and their caregivers which previous research revealed as burdensome and hardly or even not possible to improve without assistance [ 5 , 6 , 9 , 10 , 33 , 35 , 46 ]. Notably, the CCM service met the need for a reliable, continuous contact partner, guiding patients through the complexities of regulations, authorities and the insurance system. Both, PwsMS and their caregivers highly valued the professional, objective perspective provided by the CCM, recognizing it as a source of relief, support and improved care in line with previous studies [ 37 , 47 ]. Caregivers emphasized the CCM’s competence in offering concrete assistance and information on caregiving and the fundamentals of MS, including bureaucratic, authority and insurances matters. On the other hand, PwsMS particularly appreciated the CCMs external reflective and advisory function, along with empathic social support tailored to their individual concerns. Above all, the continuous partnership of trust, available irrespective of the care sector, was a key aspect that both PwsMS and their caregivers highlighted. This consistent support was identified as one of the main components in the care of PwsMS in previous studies [ 5 , 33 , 35 ].

As the health literacy is inadequate or problematic for 54% of the German population and disintegration in the health and social care system is high [ 30 , 31 , 32 ], the CCM approach serves to enhance health literacy and reduce disintegration of PwsMS and their caregivers by providing cross-insurance navigational guidance in the German health and social insurance sector on a superordinate level. Simultaneously PwsMS and caregivers experienced relief and gained more (time) resources for all areas of life outside of the disease and its management, including own interests and establishing biographical continuity. This empowerment enables patients to find a sense of purpose beyond their illness, regain autonomy, and enhance social participation, reducing the feeling of being a burden to those closest to them. Such feelings are often experienced as burdensome and shameful by PwsMS [ 6 , 48 , 49 , 50 ]. Finding a sense of purpose beyond the illness also contributes to caregivers perceiving their loved ones not primarily as patient but as individuals outside of the disease, reinforcing valuable relationships such as partners, siblings, or children, strengthening emotional bonds. These factors are also highly relevant and well-documented in a suicide-preventive context, as the suicide rate is higher in persons diagnosed with neurological disorders [ 19 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 ] and the feeling of being a burden to others, loss of autonomy, and perceived loss of dignity are significant factors in patients with severe chronic neurological diseases for suicide [ 50 , 57 ].

The temporal relief experienced by the CCM was particularly significant for HCSs and did not only improve the satisfaction of HCSs but also removed unfulfilled expectations and concerns about being blamed by patients when expectations could not be met, which previous studied elaborated [ 35 , 36 ]. Moreover, the CCM alleviated the burden on HCSs by addressing patients’ concerns, allowing them to focus on their own medical responsibilities. This aspect probably reduced the dissatisfaction that arises when HCSs are expected to address issues beyond their medical expertise, such as assistive devices, health and social insurance, and the organization and coordination of supplementary therapies, appointments, and contacts [ 35 , 36 , 61 ]. Consequently, the CCM reduced difficulties of HCSs treating persons with neurological or chronical illnesses, which previous research identified as problematic.

HCSs perceive their work as increasingly condensed with numerous time and economic constraints, especially when treating complex and severely ill individuals like PwsMS [ 36 ]. This constraint was mentioned by HCSs in the interviews and was one of the main reasons why they were hesitant to participate in interviews and may also be an explanation for a shorter interview duration than initially planned in the interview guides. The CCM’s overarching navigational competence in the health and social insurance system was particularly valued by HCSs. The complex and often small-scale specialties in the health and social care system are not easily manageable or well-known even for HCSs, and dealing with them can exceed their skills and time capacities [ 61 ]. The CCM played a crucial role in keeping (temporal) resources available for what HCSs are professionally trained and qualified to work on. However, there remains a challenge in finding solutions to the dilemma faced by HCSs regarding their wish to be informed about CCM procedures and linked with each other, while also managing the strain of additional requests and contact with the CCM due to limited (time) resources [ 62 ]. Hudon et al. (2023) suggest that optimizing time resources and improving exchange could involve meetings, information sharing via fax, e-mail, secure online platforms, or, prospectively, within the electronic patient record (EPR). The implementation of an EPR has shown promise in improving the quality of health care and time resources, when properly implemented [ 63 , 64 ]. The challenge lies ineffective information exchange between HCSs and CCM for optimal patient care. The prospect of time saving in the long run and at best for a financial incentive, e.g., when anchoring in the Social Security Code, will help best to win over the HCSs.If this crucial factor can be resolved, there is a chance that HCSs will thoroughly accept the CCM as an important pillar, benefiting not only PwsMS but also other complex patient groups, especially those with long-term neurological or complex oncological conditions that might run chronically.

Care and case management and implications for the health care system

The results of our study suggest that the cross-sectoral long-term advocacy CCM in the COCOS-MS trial, with continuous personal contacts at short intervals and constant reevaluation of needs, problems, resources and goals, is highly valued by PwsMS, caregivers, and HCSs. The trial addresses several key aspects that may have been overlooked in previous studies which have shown great potential for the integration of case management [ 17 , 47 , 62 , 65 , 66 ]. However, they often excluded the overriding care management, missed those patient groups with special severity and complexity who might struggle to reach social and health care structures independently or the interventions were not intended for long-term [ 22 , 37 ]. Our results indicate that the CCM intervention had a positive impact on PwsMS and caregivers as HCSs experienced them with benefits such as increased invigoration, reduced demands, and enhanced self-confidence. However, there was a notable loss experienced by PwsMS and caregivers after the completion of the CCM intervention, even if they had stabilized during the intervention period. The experiences of optimized social and health care for the addressed population, both at an individual and superordinate care level, support the integration of this service into standard care. Beyond the quantitatively measurable outcomes and economic considerations reported elsewhere [ 16 , 20 , 21 ], our results emphasize the importance of regaining control, self-efficacy, self-worth, dignity, autonomy, and social participation. These aspects are highlighted as preventive measures in suicidal contexts, which is particularly relevant for individuals with severe and complex illnesses [ 19 , 50 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 ]. Our findings further emphasize the societal responsibilities to offer individuals with severe and complex illnesses the opportunity to regain control and meaningful aspects of life, irrespective of purely economic considerations. This underscores the need for a comprehensive evaluation that not only takes into account quantitative measures but also the qualitative aspects of well-being and quality of life when making recommendations of a CCM in standard care.

The study by J. Y. Joo and Huber (2019) highlighted that CM interventions aligned with the standards of the Case Management Society of America varied in duration, ranging from 1 month to 15.9 years, and implemented in community- or hospital-based settings. However, they noted a limitation in understanding how CM processes unfold [ 67 ]. In contrast, our trial addressed this criticism by providing transparent explanations of the CCM process, which also extends to a superordinate care management [ 40 , 41 ]. Our CCM manual [ 40 ] outlines a standardized and structured procedure for measuring and reevaluating individual resources, problems, and unmet needs on predefined dimensions. It also identifies goals and actions at reducing unmet needs and improving the individual resources of PwsMS and caregivers. Importantly, the CCM manual demonstrates that the CCM process can be structured and standardized, while accounting for the unique aspects of each individual’s serious illness, disease courses, complex needs, available resources, and environmental conditions. Furthermore, the adaptability of the CCM manual to other complex chronically ill patient groups suggests the potential for a standardized approach in various health care settings. This standardized procedure allows for consistency in assessing and addressing the individual needs of patients, ensuring that the CCM process remains flexible while maintaining a structured and goal-oriented framework.

The discussion about the disintegration in the social and health care system and the increasing specialization dates back to 2009 [ 31 , 32 ]. Three strategies were identified to address this issue: (a) “driver-minimizing” [Treiberminimierende], (b) “effect-modifying” [Effektmodifizierende] and (c) “disintegration-impact-minimizing” [Desintegrationsfolgenminimierende] strategies. “Driver-minimizing strategies” involve comprehensive and radical changes within the existing health and social care system, requiring political and social pursuit. “Disintegration-impact-minimizing strategies” are strategies like quality management or tele-monitoring, which are limited in scope and effectiveness. “Effect-modifying strategies”, to which CCM belongs, acknowledges the segmentation within the system but aims to overcome it through cooperative, communicative, and integrative measures. CCM, being an “effect-modifying strategy”, operates the “integrated segmentation model” [Integrierte Segmentierung] rather than the “general contractor model” [Generalunternehmer-Modell] or “total service provider model” [Gesamtdienstleister-Modell] [ 31 , 32 ]. In this model, the advantage lies in providing an overarching and coordinating service to link different HCSs and services cross-sectorally. The superordinate care management aspect of the CCM plays a crucial role in identifying gaps in care, which is essential for future development strategies within the health and social care system. It aims to find or develop (regional) alternatives to ensure optimal care [ 17 , 23 , 24 , 68 , 69 ], using regional services of existing health and social care structures. Therefore, superordinate care management within the CCM process is decisive for reducing disintegration in the system.

Strengths and limitations

The qualitative study results of the explorative COCOS-MS clinical trial, which employed an integrated mixed-method design, provide valuable insights into the individual experiences of three leading stakeholders: PwsMS, caregivers and HCSs with a long-term cross-sectoral CCM. In addition to in-depth interviews, patient and caregiver reported outcome measurements were utilized and will be reported elsewhere. The qualitative study’s strengths include the inclusion of patients who, due to the severity of their condition (e.g. EDSS mean: 6.8, range: 6–8, highly active MS), age (mean: 53.9 years, range: 36–73 years) family constellations, are often underrepresented in research studies and often get lost in existing social and health care structures. The study population is specific to the wider district region of Cologne, but the broad inclusion criteria make it representative of severe MS in Germany. The methodological approach of a deductive and inductive structuring content analysis made it possible to include new findings into an existing theoretical framework.

However, the study acknowledges some limitations. While efforts were made to include more HCSs, time constraints on their side limited the number of interviews conducted and might have biased the results. Some professions are underrepresented in the interviews. Complex symptoms (e.g. fatigue, ability to concentrate), medical or therapeutic appointments and organization of the everyday live may have been reasons for the patients’ and caregivers’ interviews lasting shorter than initially planned.

The provision of functions of a CCM, might have pre-structured the answers of the participants.

At current, there is no support system for PwsMS, their caregivers and HCSs that addresses their complex and unmet needs comprehensively and continuously. There are rare qualitative insights of the three important stakeholders: PwsMS, caregivers and HCSs in one analysis about a supporting service like a CCM. In response to this gap, we developed and implemented a long-term cross-sectoral advocacy CCM and analyzed it qualitatively. PwsMS, their caregivers and HCSs expressed positive experiences, perceiving the CCM as a source of relief and support that improved care across various aspects of life. For patients, the CCM intervention resulted in enhanced autonomy, reviving of personal wellbeing and new established contacts with HCSs. Caregivers reported a reduced organizational burden and felt better informed, and HCSs experienced primarily temporal relief, allowing them to concentrate on their core professional responsibilities. At a higher level of care, the study suggests that the CCM contributed to a reduction in disintegration within the social and health care system.

The feedback from participants is seen as valuable for adapting the CCM intervention and the CCM manual for follow-up studies, involving further complex patient groups such as neurological long-term diseases apart from MS and tailoring the duration of the intervention depending on the complexity of evolving demands.

Availability of data and materials

Generated and/or analyzed datasets of participants are available from the corresponding author on reasonable request to protect participants. Preliminary partial results have been presented as a poster during the EAPC World Congress in June 2023 and the abstract has been published in the corresponding abstract booklet [ 70 ].

Abbreviations

Amyotrophic lateral sclerosis

• Care and case management

Case management

Central nervous system

Communication, Coordination and security for people with multiple sclerosis

Consolidated criteria for reporting qualitative research

German register for clinical studies

Extended disability status scale

Electronic patient record

Quality of life

Multiple sclerosis

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Acknowledgements

We would like to thank all the patients, caregivers and health care specialists who volunteered their time to participate in an interview and the trial, Carola Janßen for transcribing the interviews, Fiona Brown for translating the illustrative quotes and Beatrix Münzberg, Kerstin Weiß and Monika Höveler for data collection in the quantitative study part.

COCOS-MS Trial Group

Anne Müller 1 , Fabian Hebben 1 , Kim Dillen 1 , Veronika Dunkl 1 , Yasemin Goereci 2 , Raymond Voltz 1,3,4 , Peter Löcherbach 5 , Clemens Warnke 2 , Heidrun Golla 1 , Dirk Müller 6 , Dorthe Hobus 1 , Eckhard Bonmann 7 , Franziska Schwartzkopff 8 , Gereon Nelles 9 , Gundula Palmbach 8 , Herbert Temmes 10 , Isabel Franke 1 , Judith Haas 10 , Julia Strupp 1 , Kathrin Gerbershagen 7 , Laura Becker-Peters 8 , Lothar Burghaus 11 , Martin Hellmich 12 , Martin Paus 8 , Solveig Ungeheuer 1 , Sophia Kochs 1 , Stephanie Stock 6 , Thomas Joist 13 , Volker Limmroth 14

1 Department of Palliative Medicine, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany

2 Department of Neurology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany

3 Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), University of Cologne, Cologne, Germany

4 Center for Health Services Research (ZVFK), University of Cologne, Cologne, Germany

5 German Society of Care and Case Management e.V. (DGCC), Münster, Germany

6 Institute for Health Economics and Clinical Epidemiology (IGKE), Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany

7 Department of Neurology, Klinikum Köln, Cologne, Germany

8 Clinical Trials Centre Cologne (CTCC), Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany

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10 German Multiple Sclerosis Society Federal Association (DMSG), Hannover, Germany

11 Department of Neurology, Heilig Geist-Krankenhaus Köln, Cologne, Germany

12 Institute of Medical Statistics and Computational Biology (IMSB), Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany

13 Academic Teaching Practice, University of Cologne, Cologne, Germany

14 Department of Neurology, Klinikum Köln-Merheim, Cologne, Germany

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Formation mechanical mechanism of low-angle fractures in pre-salt carbonate reservoirs: a case study from Carboniferous KT-I formation of the NT oilfield in the eastern margin of the Precaspian Basin, Kazakhstan

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• Changhai Li 1 , 2 ,
• Lun Zhao 2 ,
• Weiqiang Li 4 ,
• Kaibo Shi 3 ,
• Wenqi Zhao 2 ,
• Jianxin Li 2 ,
• Qiang Zhu 1 ,
• Yunhai Li 1 &
• Caiqin Ma 1  

Fracture is an important factor that affects the oil and gas productivity of carbonate reservoirs. Much researches have been done on the origin of high-angle fractures in carbonate reservoirs, but few efforts have been made on the genetic mechanical mechanism of low-angle fractures. Based on the seismic data, core data, conventional logging data and rock mechanics experimental data, combined with three-dimensional in situ stress field simulation methods, the features, formation geological conditions and genetic mechanical mechanism of low-angle fractures (LAFs) were analyzed by applying Coulomb–Moore criterion, Griffith criterion and non-coordination criterion. The proportion of the number of shear fractures is as high as 90.2%, while that of tensile fractures is only 9.8% in the study area. Shear fractures are mainly unfilled fractures, and tensile fractures are mainly partially filled fractures. The LAFs were formed in the second tectonic movement, in which the knee-fold structure with high in the west and low in the east developed in the study area. The buried depth of most parts of the KT-I formation is 800 m when the study area develops the knee-fold structure, with a maximum depth of 1800 m and a minimum buried depth of 70 m, and the dip angle of the steepest part of the stratum is about 20°. A large number of LAFs were formed in the study area under the joint influence of tectonics and abnormally high pressure of water, including near-horizontal LAFs in the non-weak fabrics section (type I low-angle shear fractures), the LAFs having a certain angle with bedding in the non-weak fabrics section (type II low-angle shear fractures) and near-horizontal LAFs in the weak fabrics section (type III low-angle shear fractures). The formation of type I and type II low-angle shear fractures follows the Coulomb–Moore criterion. Type I low-angle shear fractures are formed in strata with a certain dip angle, while type II low-angle shear fractures are formed in near-horizontal strata. Type III low-angle shear fractures are formed under the comprehensive influence of pre-existing weak fabrics and strong horizontal extrusion, which follows the non-coordination criterion. Low-angle tensile fractures are mainly caused by abnormally high pressure and reverse faults in the study area, following Griffith’s criterion. The research in this paper not only reveals the formation mechanical mechanism of LAFs in pre-salt carbonate reservoirs but also provides guidance for the prediction of LAFs and solving the problem of water channeling caused by LAFs in oil fields.

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Introduction

Carbonate is an important oil and gas reservoir, which accounts for about 40% of geological reserves and 60% of crude oil production in the world (Bagrintseva 2015 ). Almost all carbonate reservoirs are related to fractures, such as Kashagan Oilfield in Central Asia (Kabiyev et al. 2012 ), X Oilfield in the Middle East (Sima et al. 2014 ) and pre-salt carbonate oilfield in Brazil (Huang et al. 2022 ). Fracture is an important factor affecting the production of carbonate reservoirs, for example, the productivity of a single well in the Shunbei Oilfield is mainly related to the distribution and intensity of fractures (Ma et al. 2022 ). Therefore, it is of great significance to study fractures in carbonate reservoirs. The previous studies on fractures mainly focused on high-angle fractures and conducted in-depth research on the identification, classification, origins, characterization and prediction of high-angle fractures (Nelson 2001 ). However, the research on low-angle fractures (LAFs) with a dip angle of less than 30° was mainly limited to the genetic model. According to the origin of low-angle fractures, the previous workers put forward three models: the LAFs induced by fault activity, the LAFs associated with fold formation and the LAFs formed due to overpressure (Séjourné et al. 2005 ). Both fault activity and fold formation lead to rock deformation and interlayer sliding of strata, which further induces the formation of low-angle fractures. Overpressure is mainly caused by the hydrocarbon generation of organic matter, and it results in formation pressure exceeding the strength of rock rupture, which causes the formation of low-angle fractures. The above-mentioned genetic models can well explain the origin of low-angle fractures. For example, Du et al. ( 2016 ) studied the genetic mechanism of LAFs in carbonate reservoirs of the Khorat Basin, Thailand, and pointed out that the LAFs along the pre-existing weak fabrics in the carbonate are caused by the impact of thrust faults. Although the previous workers have done a lot of solid work on the genetic model of low-angle fractures, there are relatively few studies on the mechanical genetic mechanism of low-angle fractures. Only Smart et al. ( 2009 , 2010 ) analyzed the mechanical genetic mechanism of LAFs caused by fault propagation folds under the extension background in the Sierra del Carmen in the Big Bend region of West Texas, USA. However, the research on the mechanical genetic mechanism of LAFs in pre-salt carbonate reservoirs caused by fault propagation folds under the compression background was seldom studied.

The NT oilfield is located on the eastern edge of the Precaspian Basin, and it is one of the largest oil and gas fields in the Precaspian Basin. Both high-angle fractures and LAFs have developed in this oilfield, and the complex fracture network leads to serious water channeling in the oilfield. The previous understanding of high-angle fractures in this oilfield is in-depth, but the research on LAFs in this oilfield is limited to its formation period, controlling factors and genetic model (Li et al. 2021 ). Hence, there is still a lack of research on the mechanical genetic mechanism of LAFs in this oilfield. The NT oilfield developed the LAFs caused by the fault propagation folds under the compression background (Li et al. 2021 ), which provides the chance to study the mechanical genetic mechanism of LAFs caused by fault propagation folds under the compression background. Based on the seismic data, core data, logging data and rock mechanics experimental data, this paper analyzes the types and characteristics of LAFs in the NT oilfield, and then restores the paleostruture during the formation of the LAFs with the guidance of fracture formation timing, and finally simulates the three-dimensional (3D) paleo-stress field during the formation of LAFs to reveal the mechanical mechanism of low-angle fractures.

Methods and theory

Observation and statistics of core fracture parameters.

By observing the 448.32-m core in the study area, the mechanical properties of LAFs with dip angles less than or equal to 30° in the study area were analyzed. Furthermore, according to the dip angle of LAFs and the relationship between the dip angle of fractures and the beddings, the types and characteristics of LAFs were identified. Besides, the filling characteristics of LAFs were counted based on the difference in fracture filling degree.

Restoration of paleostructure of the KT-I formation during the formation of low-angle fractures

The 3D paleostructure during the formation of the LAFs was restored to disclose the mechanical mechanics of low-angle fractures. Li et al. ( 2021 ) have verified that the formation period of low-angle fractures is in the second tectonic movement, thus the 3D paleostructure in the second tectonic movement of the KT-I formation was restored. The key steps in 3D paleostructure restoration include denudation recovery, fault removal, fold removal, compaction correction and paleowater depth correction (Jiu et al. 2012 ). In this study, the 3D paleostructure pattern was restored based on the automatic layer tracing technology and the paleostructure restoration technology in the Petrel software.

The deposition of the KT-I formation ended in the late Carboniferous. The study area developed the paleostructure of high in the west and low in the east in the early lower Permian due to the influence of the first tectonic movements. And later the study area deposited the sandstone strata in the lower Permian and the Kungurian salt strata in the upper Permian in order. The second tectonic movement developed during the beginning of the deposition of the Kungurian salt stratum. Therefore, if we want to restore the paleostructure of the KT-I formation during the second tectonic movement, it is necessary to flatten the top structure of the Kungurian salt stratum. However, due to the influence of the later tectonic movement, the salt stratum is severely deformed, which leads it difficult to restore the paleostructure during the formation of the low-angle fractures. According to the previous structural evolution analysis results of the study area, it can be concluded that the salt stratum is uniformly deposited on the sandstone stratum; hence, the originally deposited salt stratum is regarded as a uniform thickness stratum (Jing et al. 2021 ). According to the previous studies, there is no denudation on the top of the Upper Permian stratum when LAFs are formed, thus it is unnecessary to restore denudation. The restoration of the paleostructure during the formation of the LAFs needs to remove the influence of fold and fault. The study area belongs to the internal deposition of the platform, and the study area is relatively small, thus the influence of compaction correction and paleowater depth correction can be ignored. To sum up, the study area only needs to remove the influence of fold and fault to restore the paleostructure during the formation of the low-angle fractures.

Based on the 3D seismic data in NT oilfield, different stratigraphic boundaries in the study area were identified, and the bottom surface of the Kungurian salt stratum was flattened, by which the 3D paleostructure during the formation of the LAFs was restored (Fig.  3 ). Specifically, several typical 2D seismic sections were manually identified in 3D seismic data, and based on the automatic layer tracing technology in the Petrel software, the present 3D structural map of the Permian top surface and the present 3D structural map of KT-I formation top surface were identified (Fig.  4 a and b). By flattening the Permian top structural surface, the top structural surface of KT-I formation during the formation of the LAFs is restored. The 3D paleostructure is characterized by high in the west and low in the east during the formation of the low-angle fractures, which is consistent with the results of two-dimensional structural analysis results (Fig.  4 c). The burial depth of the main part of the KT-I formation is 800 m, and the maximum burial depth can reach 1800 m, and the minimum burial depth is only 70 m. The dip angle of the steepest part of the stratum is about 20°. This phenomenon is a common occurrence of strata in the field, which conforms to the geological law, indicating that the restoration result of the paleostructure is reliable. Besides, based on the understanding of the fracture formation period and the previous research results on the evolution of organic matter in the study area (Tian et al. 2015 ; Zhu et al. 2018 ), it can be concluded that the buried depth of LAFs is less than 933.33 m, demonstrating that the organic matter is still in the immature stage. Therefore, the influence of hydrocarbon-generation pressurization on the formation of LAFs can be ruled out in the study area.

Paleotectonic framework during the formation of the LAFs in the two-dimensional section

Structural interpretation results based on seismic data of key horizons in the NT oilfield. a Seismic interpretation results of the present 3D structural map of top Permian surface; b seismic interpretation results of the present 3D structural map of the top surface of KT-I formation and c the 3D top structural map of KT-I formation during the formation of the low-angle fractures

The paleostructural restoration results based on seismic data suggested that the knee-fold structure developed in the study area during the formation of the low-angle fractures. The existence of the knee-fold structure in the study area during the formation of the LAFs can also be verified according to the coring data. The previous workers pointed out that the knee-fold structure generally develops interlayer peeling veins, flying-geese-like tensile veins, saddle veins and triangular veins based on the outcrops (Wang et al. 2014 ; Zheng and Mo 2007 ). Interlayer peeling veins, flying-geese-like tensile veins and triangular veins can be observed in the cores of the NT oilfield (Fig.  5 ), which further demonstrates that the knee-fold structure has developed in the study area. The knee-fold structure is a typical fault propagation fold.

Petrological evidence for the existence of knee band structure in the KT-I formation of the NT oilfield. a Interlayer peeling veins of well CT-10 with a depth of 2351.41 m. b Goose-like tensile vein of well CT-10 with a depth of 2393.75 m. c Triangular vein of well CT-10 with a depth of 2390.89 m. d Sketches of interlayer peeling veins of well CT-10 with a depth of 2351.41 m. e Sketches of goose-like tensile vein of well CT-10 with a depth of 2393.75 m. f Sketches of triangular vein of well CT-10 with a depth of 2390.89 m

Besides, the interlayer peeling veins, flying-geese-like tensile veins and triangular veins indicate that abnormally high pressure has developed in the study area. It has been pointed out in this paper that abnormally high pressure has no relationship with the hydrocarbon generation of organic matter in the study area, indicating that the abnormally high pressure in the study area is mainly related to the formation of water under the comprehensive influence of the knee-fold structure and the overlying salt stratum.

Analysis of in situ stress state types

Besides the influence of paleostructure on the formation of the low-angle fractures, the influence of the paleotectonic stress field also cannot be ignored; hence, it is necessary to study the in situ stress state types. Internationally, according to Anderson’s stress classification scheme, the geostress can be divided into three types: type Ia ( σ z  >  σ H  >  σ h ), type II ( σ H  >  σ h  >  σ z ) and type III ( σ H  >  σ z  >  σ h ) (Burra et al. 2014 ; Sun et al. 2017a , b ). The vertical distribution law of in situ stress state types in the world based on the previous studying results is that the buried depth of geostress type II is 0–500 m, the buried depth of geostress type III is 500–800 m and the buried depth of geostress type Ia is more than 800 m (Wang et al. 2000 ). However, some regions do not conform to this law, for example, the in situ stress of Fuyang oil layers in the Sanzhao area, Northeast China, is affected by horizontal tectonic compressive stress, and the vertical distribution law of in situ stress state types is as follows: When the buried depth is less than 1000 m, it belongs to type II in situ stress state, when the buried depth is 1000–1600 m, it belongs to type III in situ stress state and when it is greater than 1600 m, it belongs to type Ia in situ stress state (Wang et al. 2000 ). Based on the restoration results of paleostructure and the buried depth, this paper analyzes the types of in situ stress states in the study area.

Three-dimensional finite element method

To further analyze the mechanical mechanism of the low-angle fractures, this paper simulated the paleotectonic stress field during the formation of the low-angle fractures. Based on the paleostructural map in the formation of low-angle fractures, the tectonic geological model in the formation of the LAFs was established, and the rock mechanics attribute model was established according to the conventional logging data. The boundary conditions were determined by combining the above-mentioned geostress type analyzing results and the previous acoustic emission experimental results (Li et al. 2021 ). We used the Petrel/visage module to simulate the tectonic stress field during the formation of low-angle fractures. The simulation process of geostress field is shown in Fig.  6 .

Simulation process of geostress field

Establishment of structural modeling

The fault model was built according to the previous geological knowledge of the study area provided by the PetroChina Research Institute of Petroleum Exploration and Development, and only one NE–SW trending thrust fault developed in the east of the study area (Fig.  7 a). The structural geological model was established based on the present 3D top structural surface of Permian and the present 3D top structural surface of KT-I formation. The plane grid size of the structural geological model is 300 m × 300 m, the vertical grid size is 7 m and the total number of geological grids is 399,600. The well spacing in the study area is 700 m, and the number of grids between wells is about 2, which can meet the requirements of simulation accuracy of in situ stress field (Fig.  7 b). By flattening the 3D structural map of the Permian top surface, the paleostructural model of KT-I formation during the formation of the LAFs was established. The structure of the KT-I formation during the formation of the LAFs is a typical kink-fold structure (Fig.  7 c).

Fault model and top structural model of the NT oilfield. a Fault model of the NT oilfield; b grid of the structural model of the NT oilfield and c top structural model of the NT oilfield

Modeling of rock mechanical properties

The key parameters such as elastic modulus, Poisson’s ratio, uniaxial compressive strength, tensile strength, cohesion and internal friction angle of rock were calculated based on conventional logging data. The well needs to have both P-wave sonic interval transit time and S-wave sonic interval transit time to calculate parameters such as elastic modulus and Poisson’s ratio. However, the well in the study area only measured the P-wave sonic interval transit time. To solve the problem of missing S-wave sonic interval transit time, the formula for calculating the S-wave sonic interval transit time based on the P-wave sonic interval transit time was adopted. The calculation formulas are shown in Table  1 .

The elastic modulus and Poisson's ratio of rock obtained from conventional logging are dynamic mechanical parameters, which should be corrected according to static rock mechanical parameters. The static rock mechanical parameters can be obtained from rock experiments. Because the elastic modulus and Poisson's ratio of rock samples were not measured in the NT oilfield, and the rock mechanics experiments were carried out in Well 7001 and Well 8016 in the Kenkyak Oilfield adjacent to the NT oilfield (Fig.  1 b); thus, the conversion of dynamic and static Young’s modulus and dynamic and static Poisson’s ratio was completed based on Well 7001 and Well 8016 in the Kenkyak Oilfield. The data of Young’s modulus and Poisson's ratio interpreted by conventional logging have a good correlation with the data of Young’s modulus and Poisson’s ratio measured by rock experiments, which confirms the reliability of the fitting formula (Fig.  8 ). The calculation result of different rock mechanical parameters is shown in Fig.  9 .

Transformation of dynamic and static parameters of rocks in the KT-I formation of the NT oilfield. a The relationship between dynamic and static Young's modulus of rock and b the relationship between dynamic and static Poisson's ratio of rock

Calculation results of different rock mechanical parameters of well CT-10 in the NT oilfield

Based on the calculation results of single-well rock mechanical parameters, 3D attribute models of different rock mechanical parameters were established by using sequential Gaussian simulation. The idea of sequential Gaussian simulation is to generate a simulation path randomly, and then estimate the cumulative conditional distribution function of each point, and finally give the simulation value of this point according to the distribution function (Jika et al. 2020 ; Manchuk and Deutsch 2012 ). Note that the data used to calculate the cumulative conditional distribution function include both original data and simulated unconditional data. In the sequential Gaussian simulation process, it is necessary to determine the cumulative conditional distribution function of N univariates:

Sequential Gaussian simulation is a random simulation method that combines Gaussian probability theory and sequential simulation ideas. The prerequisite of sequential Gaussian simulation is that the variables meet the normal distribution characteristics, and if not, normal transformation is needed. In this study, the rock mechanical parameters predicted by using sequential Gaussian simulation can meet the normal distribution after transformation; thus, the rock mechanical parameters in the study area can be predicted by sequential Gaussian simulation (Fig.  10 ) (Schmid 2018 ). In the process of simulating different rock mechanical properties in this study, it is considered that the rock mechanical properties are similar to those of sedimentary facies, and the major search radius and the minor search radius are 3300 m and 3000 m, respectively (Fig.  11 ). The direction of the major search radius is northeastern 27°. The prediction results of different rock mechanical parameters are shown in Fig.  12 .

Normal distribution after transformation of Possion’s ratio and Young’s modulus in the NT oilfield. a Distribution of Possion’s ratio data. b Normal distribution after transformation of Possion’s ratio. c Distribution of Young’s modulus data. d Normal distribution after transformation of Young’s modulus

Major search radius and minor search radius of Possion’s ratio and Young’s modulus in the NT oilfield. a Major search radius of Possion’s ratio. b Minor search radius of Possion’s ratio. c Major search radius of Young’s modulus. d Minor search radius of Young’s modulus

Modeling results of different rock mechanical properties of KT-I formation in the NT oilfield. a Young’s modulus attribute model; b Poisson's ratio attribute model; c density attribute model; d porosity attribute model; e cohesion attribute model; f attribute model of internal friction angle; g compressive strength attribute model and h tensile strength attribute mode

Establishment of geomechanical grid

In order to accurately describe the in situ stress field in the study area, the geomechanical grid size is set to 300 m × 300 m, and the vertical size is set to 7 m, which is consistent with the structural model. To eliminate the influence of the boundary effect, the sideburden is multiplied by 3 times the area of the study area. And the geomechanical grid was rotated clockwise by 40° to press the boundary stress conveniently (Fig.  13 ).

Geomechanical grid of KT-I formation in the NT oilfield

Establishment of fault model in the geomechanical grid

The fault model is established when the structural model is built, thus the fault model is directly copied into the geomechanical grid from the structural model. However, it is necessary to set rock mechanical parameters for faults. The Young’s modulus of the fault is 36 GPa, which is about 60% of the surrounding rock, and the Poisson’s ratio is set to 0.35, which is 0.03 larger than the whole surrounding rock. The normal stiffness of the fault is 4000 MPa/m, and the tangential stiffness is 1500 MPa/m, and the cohesion is 0.001 MPa, and the internal friction angle is 20°, and the tensile strength is 0.001 MPa (Schmid 2018 ).

Determination of pore pressure of formation water

It is difficult to directly measure the actual pore pressure of formation water during the formation of the LAFs due to it only existed in the early upper Permian. Therefore, the pore pressure of formation water was speculated according to relevant evidence, and the speculated pore pressure of formation water was verified according to the simulation of the 3D geostress field. The formation pressure coefficient is defined as the ratio of the actual formation pressure to the hydrostatic pressure at the same depth. According to the classification standard of formation pressure coefficient, a pressure coefficient greater than 1.1 is regarded as high pressure, and a pressure coefficient greater than 1.5 is regarded as ultra-high pressure (Du et al. 1995 ). The structure of the KT-I formation during the formation of the LAFs is a typical kink-fold structure (Fig.  4 c). The previous studies have illustrated that kink-fold structures usually develop the overpressure (Mo et al. 2007 ; Zhang et al. 2010 ; Zheng and Mo 2007 ), and the coring data of the NT oilfield show the interlayer peeling veins with the aperture of 1 cm filled with calcite, which verifies the existence of fluid overpressure in the study area (Fig.  5 a). Besides, the Kenkyak Oilfield, which is adjacent to the study area, is still developing overpressure at present, and the pressure coefficient is as high as 1.8, which demonstrated that the NT oilfield may develop ultra-high pressure in geological history (Wang 2012 ). Because oil and gas have not begun to charge during the formation of the low-angle fractures, the overpressure in the study area is mainly due to the existence of formation water under the influence of the overlaying salt stratum. The previous studies have suggested that the maximum formation pressure coefficient can reach 70–90% of the overburden pressure when abnormally high pressure develops (Zeng et al. 2007 ). Therefore, in order to simulate the pore pressure during the formation of the low-angle fractures, the formation pressure coefficient is set to 1.50, 2.00 and 2.43.

Determination of boundary conditions

In the process of in situ stress field simulation, the determination of boundary conditions is a key step, and the accuracy of boundary conditions directly determines whether the simulation results of the in situ stress field are reliable. Boundary conditions include vertical stress and horizontal stress. So far, the calculation method of vertical stress is relatively mature. Because the overburden pressure of rock is mainly formed by the weight of the overlying rock, vertical stress can be obtained through the density logging curve:

where H is the buried depth of the target layer, m; ρ is the rock density, g/cm 3 ; g is the acceleration of gravity, m/s 2 and \(\sigma_{{\text{v}}}\) is the vertical stress, MPa. It is generally assumed that the rock density of the stratum is 2.7 g/cm 3 , thus the above formula can be simplified as σ v  = 0.027H.

By comparing the vertical stress obtained from the rock samples test in the study area with the vertical stress calculated with the formula of \(\sigma_{{\text{v}}}\)  = 0.027H, the results show that the error between the vertical stress obtained from the rock samples test in the NT oilfield and the vertical stress calculated with the formula of \(\sigma_{{\text{v}}}\)  = 0.027H is less than 0.1%, which confirms the reliability of the vertical stress calculated with the formula of \(\sigma_{{\text{v}}}\)  = 0.027H in the study area (Table  2 ).

Many calculation models were put forward to calculate the horizontal stress (Qiu 2017 ). Different calculation models can be divided into two categories. The first category is the uniaxial strain empirical model, which assumes that the rock is mainly subjected to vertical stress, and the horizontal deformation of layered rock is limited, thus the rock only undergoes vertical deformation. This kind of model includes the Dinnik empirical model, the Mattews and Kelly model, the Terzaghi model, the Aderson model, the Newberry model, etc. The empirical model of uniaxial strain only considers the vertical deformation of strata, and it does not consider the horizontal deformation of strata, which is not consistent with reality. The second category is the multi-axial strain empirical model, including Huang’s model, combined spring model, porous elastic horizontal strain model, Schlumberger model and ADS model. Though the combined spring model ignores the anisotropic characteristics of rocks, it is convenient and in good agreement with the reality for carbonate rocks, thus it is a common horizontal stress model for predicting paleotectonic stress field (Ostadhassan et al. 2012 ; Thiercelin and Plumb 1994 ). The combined spring model mainly simulates the in situ stress field by determining the strain boundary conditions.

Petrel/visage software provides two ways to apply boundary conditions: the stress model and the strain model. The stress model simulates the initial stress using the stress given at the boundary and the strain method simulates the initial stress using the strain given at the boundary. Therefore, this study mainly determines the strain boundary conditions of the study area and applies the combined spring model theory to realize the simulation of the in situ stress field.

The strain boundary conditions can be obtained by the acoustic emission experimental results. The acoustic emission experimental results show that the maximum principal stress during the formation of the LAFs in the study area is σ H  = 42.4 MPa (Li et al. 2021 ). Note that the maximum principal stress here is the effective maximum principal stress, and the total maximum principal stress should add the maximum principal stress and the hydrostatic pressure which can be calculated according to the buried depth of the rock samples’ testing point.

The present buried depth of the rock samples’ testing point is 2346.9 m. By analyzing the elastic modulus and Poisson’s ratio of rock calculated by logging curves at this depth, it is known that the elastic modulus is E  = 50 MPa, and Poisson’s ratio is \(\mu\)  = 0.3. The buried depth of rock samples testing the acoustic emission experiment is 604 m during the formation of the low-angle fractures, thus the hydrostatic pressure at the testing point for the acoustic emission experiment is P p  = 6.04 MPa during the formation of the low-angle fractures. Because the pore pressure coefficient of formation water is set to 1.50, 2.00 and 2.43 in this study, the total maximum horizontal principal stress is 51.46 MPa, 54.48 MPa and 57.08 MPa (Table  3 ). According to the total maximum principal stress in the study area and the combined spring model and the previous analysis results of horizontal strain under a similar structural background in Australia (Tavener et al. 2017 ), the strain values in the direction of maximum principal stress and minimum principal stress were determined, respectively (Table  3 ).

Rock rupture theory

To determine the conditions of brittle rupture of rocks, the previous workers studied tensile failure and shear failure, respectively, and established a variety of rupture criteria, such as the Griffith criterion and tensile failure criterion, especially for tensile failure, and Coulomb–Moore criterion and Drucker–Prager criterion especially for shear failure (Liu 2015 , 2010 ). So far, the most classical rock fracture criteria for brittle fracture are the Griffith criterion for tensile failure and the Coulomb–Moore criterion for shear failure. In addition, for rocks with weak fabrics, the previous workers built the non-coordination criterion. The following introduces the Griffith criterion, Coulomb–Moore criterion and non-coordination criterion in detail.

Griffith criterion

Griffith’s criterion mainly focuses on tensile fracture. This theory was originally used to explain the mechanism of glass breakage and was subsequently introduced into the study of rock rupture. Griffith’s criterion holds that there are a large number of tiny fractures in the rock before the external force is applied. When the external force is applied to the rock, stress concentration will occur around the tiny fractures, and the tiny fractures in the rock will begin to expand under the external force and form tensile fractures.

The precondition of rock tensile fracture is that the minimum principal stress is tensile. In the study of rock mechanics, it is stipulated that the compressive stress of rock is positive and the tensile stress is negative, thus the application condition of tensile fracture is that the minimum principal stress is less than zero. Griffith’s criterion can be divided into two situations when applied:

If \(\left( {\sigma_{1} + 3\sigma_{3} } \right) > 0\) ;

If \(\left( {\sigma_{1} + 3\sigma_{2} } \right) \le 0\) ;

where \(\beta\) is the internal friction angle. \(\sigma_{1}\) is the first principal stress, MPa; \(\sigma_{2}\) is the second principal stress, MPa; \(\sigma_{3}\) is the third principal stress, MPa and \(\sigma_{T}\) is the critical rupture pressure, MPa. In this situation, the direction of tensile fracture in rock is along the propagation direction of the maximum principal stress \(\sigma_{{1}}\) .

Coulomb–Moore criterion

The Coulomb–Moore criterion is mainly applicable to shear fracture. This theory holds that the rupture of rock is due to the existence of shear action on a certain surface of rock, which exceeds the strength of shear rupture of rock (Fig.  14 ). The expression in the process of rock rupture can be written as follows:

where C is the shear strength of the rock; \(\tan \varphi\) is the coefficient of internal friction in the rock and \(\varphi\) is the internal friction angle of the rock.

Schematic diagrams of rock stress and Coulomb–More criterion. a Rock stress diagram of the unit body and b Coulomb–More criterion diagram

When the value on the right side of the formula is greater than that on the left side in formula ( 8 ), the rock mass will form a fracture. The above relationship can be expressed in the Cartesian coordinate system. Taking the compressive stress on the rock as the abscissa and the shear stress as the ordinate, as shown in Fig.  14 b, the above formula is a straight line in the Cartesian coordinate system. When half of the difference between the maximum principal stress and the minimum principal stress is tangent or intersects with the straight line, the rock can be ruptured (Fig.  14 ).

The σ and τ in the coordinate system can be obtained by the following formula:

where σ 1 is the maximum principal stress, and σ 3 is the minimum principal stress. θ is the included angle between the failure surface and the direction of σ 3 , namely, the included angle between the normal of the failure surface and the direction of σ 1 .

After transforming the above formula, the criterion can be expressed by using σ 1 and σ 3 , and it can be rewritten as follows:

where \({\text{S}}_{\text{c}}\) is the compressive strength, and \({\text{V}}_{\text{p}}\) is the shear wave velocity, m/s.

Non-coordination criterion

Underground rocks are heterogeneous. Due to factors such as bedding or foliation, pre-existing weak fabrics often develop in rocks. Tong et al. ( 2011 ) deduced the shear fracture criterion of rock when developing pre-existing weak fabrics, which is known as the non-coordination criterion. The rupture coefficient of weak fabrics can be defined as follows:

where τ n is the shear stress of the weak fabrics, and [ τ n ] is the shear stress corresponding to the same normal stress on the rupture line. The pre-existing weak fabrics of rock with f aw  = 1 are in a critical breakage state, the pre-existing weak fabrics with f aw  > 1 are in a breakage state, the pre-existing weak fabrics with f aw  < 1 are below the rupture line and the pre-existing weak fabrics do not develop fractures (Fig.  15 ).

Mohr circle diagram of triaxial stress for non-coordination criterion. a Rupture envelope for intact rock; b rupture envelope for rock with weak fabrics and c line of fault activity (Tong et al. 2011 )

When the magnitude and direction of the three principal stresses are determined, the normal stress ( σ n ) and shear stress ( τ n ) on any interface in space are as follows, respectively:

where θ is the angle between the weak fabrics and the direction of σ 1 , and α is the angle between the intersection of the weak fabrics on the σ 2 – σ 3 plane and the minimum principal stress σ 3 .

According to the rock rupture criterion:

The fracture coefficient of any weak fabric is

If the stress state, the shear strength C W , the internal friction coefficient \(\mu_{{\text{w}}}\) and the occurrence of the pre-existing weak fabrics are known in advance, the fracture coefficient f aw of the pre-existing weak fabrics can be calculated quantitatively.

When C W  = 0 and μ w is replaced by f F , the activity coefficient f aF of the pre-existing fault can be obtained.

The above formula unifies the activity coefficient f aF of pre-existing faults to the fracture coefficient f aw of pre-existing weak fabrics. The pre-existing fault activity coefficient ( f aF ) and pre-existing weak fabrics activity coefficient ( f aw ) are collectively called the pre-existing structural activity coefficient ( f aS ).

When C W  =  C (equivalent to homogeneous body), the gray shaded part in Fig.  15 shrinks to a point ( A ), and the included angle between the corresponding section and the direction of σ 1 is θ  = 45° +  \(\varphi\) /2, which is perpendicular to σ 3 (namely, \(\alpha\)  = 90). Figure  15 shows that only the activity coefficient of point A is 1, and others are less than 1. According to the condition of point A ( \(\alpha\)  = 90°, \(\theta\)  = 45°– \(\varphi\) /2) and isotropic body ( C W  =  C , \(\mu_{{\text{w}}} = \tan \varphi\) ), it can be obtained:

After further simplification, it can be obtained:

It can be seen that the isotropic body’s Coulomb–Moore criterion is only a special case of the non-coordination criterion.

Types and filling characteristics of low-angle fractures

Types of low-angle fractures.

Fractures can be divided into shear fractures and tensile fractures according to their mechanical properties. The occurrence of the shear fracture is stable and extending far away, and the wall of the shear fracture is flat and smooth, occasionally developing scratches and steps (Fig.  16 a). The occurrence of tensile fractures is unstable and does not extend far, and the wall of tensile fractures is rough, short and curved, without scratches and steps (Fig.  16 b). The NT oilfield mainly developed shear fractures, making up for 90.2%, and tensile fractures only account for 9.8%.

Fractures with different mechanical properties in the cores of KT-I formation of the NT oilfield. a Shear fracture in the cores of the well CT-4 with a depth of 2294.90 m and b tensile fracture in the cores of the well CT-22 with a depth of 2395.58 m

According to the dip angle of LAFs and the beddings in rocks, the low-angle shear fractures in the study area can be further divided into three types, including near-horizontal LAFs in the non-weak fabrics section (type I low-angle shear fractures), LAFs having a certain angle with bedding in the non-weak fabrics section (type II low-angle shear fractures) and near-horizontal LAFs in the weak fabrics section (type III low-angle shear fractures) (Fig.  17 ). It can be seen that the fracture of type I and type II low-angle shear fractures is almost unaffected by beddings, while the development of type III low-angle shear fractures has a certain relationship with rock beddings.

Characteristics of LAFs in cores of the KT-I formation of the NT oilfield. a Near-horizontal LAFs in the non-weak fabrics section of the well CT-64 with a depth of 2596.41–2596.66 m; b the LAFs having a certain angle with bedding in the non-weak fabrics section of the well CT-64 with the depth of 2671.36–2671.59 m and c near-horizontal LAFs in the weak fabrics section of the well CT-64 with a depth of 2732.78–2732.87 m

Filling characteristics of low-angle fractures

Fractures can be divided into unfilled fractures, partially filled fractures and filled fractures according to the fracture filling degree. Based on the core data, the filling characteristics of LAFs in the study area were analyzed. The results show that the LAFs in the NT oilfield are mainly unfilled fractures, with a percentage of the number of 65.0%, and the proportion of the number of partially filled fractures is 18.9%, and the proportion of the number of fully filled fractures is 16.1% (Fig.  18 a). The fillings of LAFs in the study area are mainly argillaceous, with occasional fillings such as asphalt, siliceous, calcite and dolomite (Fig.  18 b).

Percentage of the number of LAFs with different fillings and fillings characteristics of cores in the KT-I formation of the NT oilfield. a Percentage of the number of the LAFs with different fillings and fillings characteristics of cores in the KT-I formation of the NT oilfield ( N  = 834) and b the number of fractures with different fillings of cores in the KT-I formation of the NT oilfield

Based on the core data, the filling characteristics of LAFs with different mechanical properties were further studied. The results illustrate that shear fractures are chiefly the unfilled fractures, with a proportion of the number of 70.9%, while the tensile fractures are primarily the unfilled fractures, and the percentage of the number of unfilled tensile fractures is only 30.6% (Fig.  19 a and b). The filling degree of tensile fractures is higher than that of shear fractures, mainly due to the larger aperture of tensile fractures leading to greater fluid flux and easier precipitation of cement.

Filling characteristics of LAFs with different mechanical properties in cores of the KT-I formation of the NT oilfield. a Filling characteristics of shear fractures in cores of the KT-I formation of the NT oilfield ( N  = 752) and b filling characteristics of tensile fractures in cores of the KT-I formation of the NT oilfield ( N  = 82)

Analysis of in situ stress types

The buried depth of most parts of the KT-I formation is less than 800 m, and the thrust faults are developed during the formation of the LAFs in the study area, which displays that the tectonic setting of the study area is horizontal compression, and the vertical stress is relatively small. Therefore, the in situ stress type of the study area during the formation of the LAFs is type II. The example of the Fuyang oil layers in the Sanzhao area confirms the rationality of determining the in situ stress types in the study area as type II. Besides, the buried depth of the strata in the first tectonic movement is less than that in the second tectonic movement, which suggests that the in situ stress in the first tectonic movement is also type II. The third tectonic movement in the study area occurred in the late Permian, and the Kungurian salt formation deposits during this time. The average thickness of the Kungurian salt formation is about 150 m in the study area (Jing 2021 ), that is, the thickness of the overburden stratum of the KT-I formation is 950 m. Because the third tectonic movement was caused by Ural orogeny and developed structural inversion, which confirmed that the third tectonic movement in the study area was characterized by strong horizontal stress, thus the stress type of the third tectonic movement was also regarded as type II.

Analysis of stress field simulation results

By simulating the stress field with different formation pressure coefficients, the results show that when the formation pressure coefficient is 1.50, the maximum principal stress is 0–70 MPa, the intermediate principal stress is 0–40 MPa, and the minimum principal stress is 0–30 MPa (Fig.  20 a–c). When the formation pressure coefficient is 2.00, the maximum principal stress is 0–70 MPa, the intermediate principal stress is 0–40 MPa, and the minimum principal stress is − 4–10 MPa (Fig.  20 d–f). When the formation pressure coefficient is 2.43, the maximum principal stress is 0–70 MPa, the intermediate principal stress is 0–40 MPa and the minimum principal stress is − 10–8 MPa (Fig.  20 g–i). Obviously, with the enhancement of abnormally high pressure, the proportion of tensile stress in the study area is increasing, that is, tensile fractures are more developed.

Simulation results of in situ stress field for different formation pressure coefficients of KT-I formation in the NT oilfield. a The first principal stress distribution when the formation pressure coefficient is 1.50; b the second principal stress distribution when the formation pressure coefficient is 1.50 and c the third principal stress distribution when the formation pressure coefficient is 1.50; d the first principal stress distribution when the formation pressure coefficient is 2.00; e the second principal stress distribution when the formation pressure coefficient is 2.00 and f the third principal stress distribution when the formation pressure coefficient is 2.00; g the first principal stress distribution when the formation pressure coefficient is 2.43; h the second principal stress distribution when the formation pressure coefficient is 2.43 and i the third principal stress distribution when the formation pressure coefficient is 2.43

When the formation pressure coefficient is 1.50, the minimum principal stress values are all positive, that is, compressive stress, which is difficult to explain the existence of the tensile fractures in the study area (Fig.  21 a). When the formation pressure coefficient is 2.00, the percentage of the tensile stress of the minimum principal stress is only about 2.6%, which is still difficult to explain the geological phenomenon that the percentage of the number of tensile fractures in the study area is as high as 9.8% (Fig.  21 b). When the formation pressure coefficient is 2.43, the percentage of the tensile stress of the minimum principal stress is 9.8%, which is consistent with the geological phenomenon that the percentage of the number of core tensile fractures in the study area is 9.8% (Fig.  21 c). Therefore, it is determined that the formation pressure coefficient in the study area is 2.43. The simulation results once again confirm that the study area has developed a strong abnormally high pressure.

Distribution of minimum principal stress for different formation pressure coefficients in KT-I formation of the NT oilfield. a Distribution of minimum principal stress when the formation pressure coefficient is 1.50; b distribution of minimum principal stress when the formation pressure coefficient is 2.00 and c distribution of minimum principal stress when the formation pressure coefficient is 2.43

Although there are some differences among type I low-angle shear fractures, type II low-angle shear fractures and type III low-angle shear fractures, they all belong to shear fractures, and the formation mechanism of fractures dip angle can be analyzed according to the stress simulation results and Coulomb–Moore rupture criterion (Fossen 2016 ; Liu 2015 ). The formula for calculating the dip angle of shear fractures based on the Coulomb–Moore fracture criterion is (Ju and Sun 2016 ):

where θ is the angle between the minimum principal stress and the fracture surface, and it is also the angle between the normal direction of the fracture surface and the maximum principal stress. The angle between the maximum principal stress and the fracture surface is 90 −  \(\theta\) . \(\varphi\) is the internal friction angle of the rock. The calculation results display that the dip angle of shear fractures is between 24° and 29° (Fig.  22 a and b). The fractures with a dip angle of 24°–29° are the type II low-angle shear fractures identified in this paper. The previous studies on rock rupture show that the shear fracture in rock is generally about 30° with the maximum principal stress, thus the calculation result of the fracture dip angle in this paper is within a reasonable range. In addition, the stress simulation results explain the geological phenomenon that the fractures with a dip angle of 20°–30° are very developed in cores.

The 3D attribute model and distribution of the included angle between low-angle shear fracture and horizontal plane in KT-I formation of the NT oilfield. a The 3D attribute model of the included angle between low-angle shear fracture and horizontal plane in KT-I formation of the NT oilfield and b distribution of the included angle between low-angle shear fracture and horizontal plane in KT-I formation of the NT oilfield

The included angle between the strata near the faults in the study area and the horizontal plane is about 20°, and the included angle between the LAFs and the horizontal plane is 24°–29°, thus the LAFs formed in this area are nearly parallel to the beddings, which is the type I low-angle shear fractures identified in this study (Fig.  23 ). Due to the influence of the tectonic inversion, the type I low-angle shear fractures are mainly nearly horizontal LAFs at present. This phenomenon reflects the influence of stratum dip angle on the occurrence of low-angle fractures.

Distributions of different genetic low-angle shear fractures in KT-I formation of the NT oilfield

In addition to the type I and type II low-angle shear fractures analyzed above, a large number of type III low-angle shear fractures related to the beddings are also developed in the study area. Type III low-angle shear fractures develop along sedimentary bedding or foliation, which is influenced by the pre-existing weak fabrics of the rock; hence, the rock rupture mechanism follows the non-coordination criterion. Because of the weak fabrics, the cohesion and internal friction angle of the rock will be reduced, causing the compressive strength of the rock will be significantly reduced, that is, the rupture envelope in Fig.  15 is smaller than that of the intact rock, and the fractures are easier to develop. Therefore, a large number of type III low-angle shear fractures are developed in the study area.

When the second period of the LAFs in the study area was formed, the study area was in a state of intense horizontal compression, and the vertical direction was the minimum principal stress direction. Therefore, in the absence of other factors, the minimum principal stress in the study area should be compressive stress, and all fractures should be shear fractures. However, the study area develops many tensile fractures. The previous studies have pointed out that abnormally high pressure can change the fracture type from shear fracture to tensile fracture (Fig.  24 ) (Hillis 2003 ; Kang and An 2016 ; Luo et al. 2015 ). During the formation of the LAFs in the NT oilfield, intense abnormally high pressure developed, and the results of in situ stress field simulation also confirmed that the abnormally high pressure resulted in the development of tensile fractures in the study area. The influence mechanism of abnormally high pressure on fracture types is as follows: Due to the increase in fluid pressure, both the maximum principal stress and the minimum principal stress decrease, and the difference between the maximum principal stress and the minimum principal stress also decreases. Therefore, with the increase in pore pressure, the Mohr circle keeps moving in the negative direction of the coordinate axis, and the radius of the Mohr circle keeps decreasing. Finally, due to the influence of pore pressure, the minimum principal stress changes from positive value to negative value, that is, the stress gradually changes from extrusion state to tension state. It should be noted that the abnormally high pressure is not only the direct cause of the formation of tensile fractures, but also promotes the development of shear fractures.

Formation mechanism of tensile fractures

Due to the influence of fault on the disturbance of the stress field, the zone near the fault develops not only the shear fractures parallel to the fault and shear fractures conjugated with the fault, but also tensile fractures nearly perpendicular to the fault (Sun et al. 2017a , b ). This phenomenon is mainly because the hanging wall and footwall of the fault drag each other during the thrust fault activity, thus the tension fractures are formed in the horizontal direction perpendicular to the reverse fault plane. The simulation results of the in situ stress field in the NT oilfield show that the displacement of the hanging wall and footwall of the fault in the study area is between 0 and 0.27 m. Due to the mutual drag between the hanging wall and the footwall of the fault, there are conditions for the development of tension fractures (Fig.  25 ).

Fault throw distribution of KT-I formation in the NT oilfield

Conclusions

The low-angle fractures (LAFs) in the NT oilfield are mainly shear fractures, with a percentage of the number of 90.2%, while the percentage of the number of tensile fractures is only 9.8%. According to the dip angle of LAFs and the beddings in the rocks, the low-angle shear fractures in the study area can be further divided into three types, including near-horizontal LAFs in the non-weak fabrics section (type I low-angle shear fractures), the LAFs having a certain angle with bedding in the non-weak fabrics section (type II low-angle shear fractures) and near-horizontal LAFs in the weak fabrics section (type III low-angle shear fractures).

The mechanical genetic mechanism of LAFs caused by fault propagation folds under the compression background was revealed in this paper by restoring the paleostructure and simulating the crustal stress field. The LAFs are formed under the joint influence of tectonic movement and abnormally high pore pressure. The burial depth of the strata is moderate, with the development of Anderson stress type II, which means the development of compression tectonic background. Under the compression background, the fault propagation folds develop (knee-fold structure is a typical fault propagation fold), which is the mechanical basis for the formation of low-angle shear fractures. The overlying salt rock strata is an excellent cap rock, leading to the development of fluid overpressure. The abnormally high pressure of the fluid not only promotes the formation of low-angle shear fractures, but also induces the development of low-angle tensile fractures.

The formation mechanical mechanism of different types of LAFs is different. The formation of type I and type II low-angle shear fractures follows the Coulomb–Moore criterion, but type I low-angle shear fractures are formed in strata with a certain dip angle, while type II low-angle shear fractures are formed in nearly horizontal strata. Type III low-angle shear fracture is formed under the comprehensive influence of pre-existing weak fabrics and strong horizontal extrusion, and follows the non-coordination criterion. Low-angle tensile fractures are mainly formed under the influence of fluid abnormally high pressure and thrust fault in the study area, and they follow the Griffith criterion.

Abbreviations

• Low-angle fractures

Near-horizontal LAFs in the non-weak fabrics section

The low-angle fractures having a certain angle with bedding in the non-weak fabrics section

Near-horizontal low-angle fractures in the weak fabrics section

Three-dimensional

The shear strength of the rock

Coefficient of formation volume compressibility (GPa − 1 )

Skeleton volume compression coefficient (GPa − 1 )

Shear strength (MPa)

Rock shear strength (GPa)

Dynamic Young’s modulus (GPa)

Fracture coefficient of the pre-existing weak fabrics (MPa)

The activity coefficient of the pre-existing fault (MPa)

Shear modulus (GPa)

The acceleration of gravity (m/s 2 )

The buried depth of the target layer (m)

Bulk modulus (GPa)

The total number of the numerical value smaller than z 1

The hydrostatic pressure (MPa)

Uniaxial compressive strength (GPa)

Tensile strength of rock (GPa)

The coefficient of internal friction in the rock

S-wave sonic interval transit time (us/m)

P-wave sonic interval transit time (us/m)

Rock skeleton S-wave sonic interval transit time (us/m)

Rock skeleton P-wave sonic interval transit time (us/m)

Formation S-wave velocity and rock skeleton S-wave velocity (m/s)

Formation P-wave velocity and rock skeleton P-wave velocity (m/s)

The shear wave velocity (m/s)

Clay content

The variables smaller than z 1

Any numerical value in the set of data

The variables smaller than z 2

The variables smaller than z n

The angle between the intersection of the weak fabrics on the σ 2 – σ 3 plane and the minimum principal stress σ 3

The internal friction angle

The angle between the weak fabrics and the direction of σ 1

Dynamic Poisson’s modulus

The internal friction coefficient

Rock density (kg/m 3 )

Formation bulk density and rock skeleton bulk density (g/cm 3 )

Normal stress

Horizontal maximum principal stress (MPa)

Horizontal minimum principal stress (MPa)

The critical rupture pressure (MPa)

The vertical stress (MPa)

The first principal stress (MPa)

The second principal stress (MPa)

The third principal stress (MPa)

Shear stress

The shear stress corresponding to the same normal stress on the rupture line (MPa)

Shear stress for the rock with pre-existing weak fabrics (MPa)

Porosity (%)

Rock internal friction angle (°)

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Acknowledgements

The authors would like to thank the anonymous reviewers for their comments and very helpful suggestions.

This work was supported by the National Natural Science Foundation United Project of China (U19B6003) and the China National Petroleum Corporation Science and Technology Program (2022DJ3210).

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Changhai Li, Qiang Zhu, Yunhai Li & Caiqin Ma

PetroChina Research Institute of Petroleum Exploration and Development, Beijing, 100083, China

Changhai Li, Lun Zhao, Wenqi Zhao & Jianxin Li

School of Earth and Space Sciences, Peking University, Beijing, 100871, China

Bo Liu & Kaibo Shi

PetroChina Hangzhou Research Institute of Geology, No.920 XiXi Road, Xihu District, Hangzhou, 310023, Zhejiang Province, China

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Changhai Li helped in conceptualization, methodology, software and writing—original draft preparation. Lun Zhao helped in data curation and software. Bo Liu worked in supervision and writing—reviewing and editing. Kaibo Shi contributed to writing—reviewing and editing. Wenqi Zhao helped in data curation. Jianxin Li worked in software. Zhu Qiang helped in data curation. Li Yunhai helped in data curation. Ma Caiqin contributed to writing—reviewing and editing.

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Li, C., Zhao, L., Liu, B. et al. Formation mechanical mechanism of low-angle fractures in pre-salt carbonate reservoirs: a case study from Carboniferous KT-I formation of the NT oilfield in the eastern margin of the Precaspian Basin, Kazakhstan. J Petrol Explor Prod Technol (2024). https://doi.org/10.1007/s13202-024-01783-x

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DOI : https://doi.org/10.1007/s13202-024-01783-x

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Apples and oranges: Florida passes a slew of pro-development laws, contrary to New York

Albany lawmakers say they will not sign off on a state budget without rent increase protections; Florida's Live Local Act bans local rent control

As the New York State Legislature struggles to pass the state’s budget, divided, in part, over how to handle key housing policies, the Florida Legislature has gone in the opposite direction. 

Last month, Florida lawmakers wrapped up the 2024 session with the approval of a $117.5 billion state budget and the passage of a handful of pro-development bills. 

In the last two years, lawmakers in the Sunshine State have cracked down on squatters , overridden tenant protections and passed a bill making it easier to demolish coastal properties . They have also beefed up condo and homeowners association laws, by criminalizing kickbacks and the hiding of records. 

A year ago, Gov. Ron DeSantis signed into law the Live Local Act, a landmark $711 million housing bill that passed in the majority-Republican Florida Legislature with bipartisan support. Despite some opposition to certain aspects of the legislation, just six representatives in the House voted against it. Last month, the legislature approved amendments to the law that are awaiting the governor’s signature. 

New York and Florida have been connected for years, but the political landscapes are far removed. 

New York developers, real estate brokers and lenders have increasingly flocked to Florida, lured by the lack of state income tax and pro-business politics. Much of the industry-friendly legislation that DeSantis has signed into law since he became governor in 2019 wouldn’t fly in a state like New York. 

In Albany, lawmakers passed another extension to keep the government open until Thursday. They’ve said they will not sign off on a deal without a proposal that would give tenants protections against rent increases above a certain rate. At stake for real estate developers and landlords is a key property tax break for multifamily new construction, and relief for struggling owners of rent regulated buildings.

In Florida, the changes in legislation haven’t all been met with praise. 

“It’s not to say we’re not without our problems,” said Peter Dyga, president of the Associated Builders and Contractors Florida East Coast Chapter, who is a proponent of Live Local Act, changes in insurance legislation and other laws. 

Insurance coverage has become harder and more expensive to secure in Florida. The condo safety laws that passed in 2022, following the Surfside condo collapse that killed 98 people, are forcing condo and townhouse associations to invest in their buildings and bolster their bank accounts, making it even more expensive to live in those communities. Some unit owners who can’t afford increases in HOA dues and special assessments to pay for repairs and soaring insurance premiums, have lost their homes or been forced to sell. 

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That’s expected to get worse once deadlines to comply with the law go into effect. 

Restrictions on foreign investment, particularly Chinese investment in real estate, have also met with some backlash, though that law could be struck down . 

So what has helped much of the pro-industry legislation pass? By pairing language that’s geared toward creating affordable housing with huge incentives, the legislature has voted for bills like the Live Local Act, led by Florida Senate President Kathleen Passidomo, Sen. Alexis Calatayud and other lawmakers. 

Live Local: a case study 

In addition to setting aside hundreds of millions of dollars in funding, Live Local also creates density, height, floor-area-ratio, parking and tax incentives for developers that incorporate workforce housing in their projects. Local governments must administratively approve such developments, as long as they comply with local land development regulations. The law also eliminates the ability of local governments to enact rent control, something that was previously only allowed during a housing emergency.

The idea is that by giving developers the ability to add units, build taller buildings and fewer parking spaces, as well as other incentives, they can create workforce housing. Developers have shown up for the governor. The real estate industry spent at least $18 million backing DeSantis’ re-election campaign two years ago. 

Applications for Live Local projects have trickled in, and more are expected once DeSantis signs the amendments into law. Whether they solve the housing crisis has yet to be seen. The law has largely been referred to as an affordable housing bill, but it’s important to note that developers only have to build rental units that are set aside for people earning up to 120 percent of the area median income. In Miami-Dade County, that comes out to just shy of $90,000 for a one-person household. 

Anthony de Yurre, a Bilzin Sumberg attorney who helped draft parts of the latest legislation, said Live Local is one tool that can help the affordability crisis. South Florida has become one of the most unaffordable markets in the country in recent years, in part due to the migration of wealthier residents from the Northeast and other parts of the country. 

The surge in costs for construction, insurance, land and financing have made it harder for developers to build their projects. DeSantis and the legislature have catered to that. 

Said de Yurre: “It’s very difficult to make the numbers work right now for construction.”