case study format engineering

Case Studies

• Analysis of a Diesel Engine
• Experimental Determination of the Mechanical Equivalent of Heat
• Refining the Mechanical Equivalent of Heat
• Analysis of a Residential Heat Pump

Ethics Case Studies

• Mount Dioxin

• Calculating and Comparing the Output Power and the Indicated Power of a Simple IC Engine
• Comparison of the Anemometer Mass Flow and the Thermal Mass Flow
• Calculating Q (Heat)
• Drag Measurements for Ten Geometric Bodies
• Drag Measurements on Round and Wing Tubes
• Hydraulic Jump through a Sluice Gate
• Optimal Drafting Position for Marathon Runner
• Experiments on a Series of Symmetrical Joukowski Sections
• Nusselt Number Correlation
• Heat Transfer in a Triangular Duct
• Nuclear Plant Heat Exchanger Problems
• Torsional Pendulum: Determining Mass Moments of Inertia
• Space Crank Application
• The Story of Eighty-Four Minutes
• Bolt Torque, Preload, and Strength
• The Problem of the Perverse Pinion
• Hunting Problems on a Dam Controlled Gate

Welcome to the Mechanical Engineering Case Studies website. Select your course from the list at the Left to begin.

This web site is being developed to give undergraduate Mechanical Engineering students real engineering examples and experimental data in their lecture courses. This is done by using design calculations or experimental data completed by ME seniors in their design courses, lab courses, honors thesis, and Co-op (with permission from the company). Results from graduate student research or published experimental data are also used. This allows students to become familiar with data analysis and the inherent uncertainties in experimental measurements before entering the laboratory courses.

The case studies are formatted as a homework assignment. In some cases, the entire case study would be assigned for homework. In other cases, there are several similar sets of data and only one set of data would be assigned for homework. Each case study includes a description of the objectives, the experimental facility, and the experimental procedure used to obtain the data. When possible, photos and video clips are used to show the facility and experimental procedure. From the web site, students can download engineering drawings of the models used in the experiment and spreadsheets containing the experimental data. The web site describes the data analysis required in the assignment. Included in the data analysis may be nondimensionalization, statistical analysis, plotting the experimental data, and comparison of the experimental results with correlations found in the text.

In this case study web site you will also find several ethics case studies and several links that have been found for particular classes. A statistics tutorial gives a review of the statistical analysis that is used in several case studies.

If you are interested in contributing additional case studies, or have any comments or suggestions regarding this site, please contact Professor Laura Pauley ( [email protected] ).

Welcome to the Statistics Tutorial. To learn more about a statistical function, click on one of the links below.

• Variance and Standard Deviation
• Binomial Distribution
• Poisson Distribution
• Normal Distribution
• Student's T Distribution
• Chi-Square Test

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The Engineer’s Guide to Writing and Promoting a Case Study

Case studies  are the holy grail of content.

You can tell prospects all day how great your company is, but the real trust is built when you have a customer validate the value of your products and services.

Not only is a case study the strongest piece of content in your arsenal, it is also the most versatile. Case studies come into play at every stage of the buyer’s journey – from awareness and interest all the way to a purchase decision.

If you are investing in content marketing, case studies must be a priority. Here's our 6-step process for writing and promoting full-length technical case studies.

How to Write a Case Study

Select the right customer.

Look through your list of customers and/or ask your project managers if any customers have one of the following characteristics:

Surprise results – Non-traditional customers that have seen overly positive results can help absolve any doubts potential customers may have.

Recognizable name – While small companies can have powerful stories, bigger or more notable brands can help increase credibility.

Competitive win – If you are consistently going up against another competitor, having a case study where you won over them is a great piece that can be leveraged by your sales team.

In an industry or vertical where you’re aiming to expand business – If you are looking to expand into a new industry I will always suggest the first piece of content you create is a case study to show that you understand the challenges and can meet customer needs in that specific industry.

Willingness to participate – Many customers will volunteer to offer some information for a case study and ultimately approve it, while others are required by their companies to be tight-lipped about applications or run all information through corporate communications processes. Having a willing participant will prove to be a much easier and fruitful process than one where you have to pull teeth to get the information or approval you need. Also make sure that you communicate the mutual benefit of a case study for you and for your customer. Oftentimes, the case study will highlight the benefits of your products or services, but it will also help the customer showcase their success. By later putting the completed case study on your web site, you help improve the customer’s web presence and further their company name.

Create Interview Questions and Outline

The most compelling and complete case study follows the flow below. Use the format to inform your research first and then prepare open-ended questions to use when interviewing your customers. 

Customer’s business overview – This serves to build an understanding of the company's current challenges and goals, and how they fit into the landscape of their industry.

Challenges – This helps match the customer's need with your products and services.

Decision-making process – Showing the process demonstrates how the customer arrived at their decision to work with you and helps guide the decision-making process of potential customers.

Solution – Help a potential customer understand how your product or service is currently being used.

Results – Reveal impressive, measurable outcomes to give insight into what your potential customer can achieve when working with you.

Download our B2B Case Study Template to get started.

Obtain Customer Approval

Once the case study has been drafted and reviewed internally, share it with the customer so they can fact-check the document and make any needed changes. Some customers will require that their legal department review the case study to ensure there is no sensitive information shared. Once their changes have been incorporated, we also recommend having the customer sign a release form, permitting you to promote and publish the case study.

This is often the most overlooked part of developing a case study and I would argue likely the most important. Most people judge whether they read a case study based on scan-ability, which can be achieved through good design.

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 most importantly, be sure to provide an attractive call-to-action at the end to provide readers with an opportunity to learn more about your product or service.

Include the following:

Title - provide compelling first-glance content

Section headers - d raw readers in with quantifiable, results-focused headlines

Relevant images

Bulleted lists

Bolded and italicized text

Call out quotes and stats

Up to 800 words

Need some design inspiration? View TREW’s case studies.

How to Promote Your Case Study

There are two primary places to publish your full-length case study: on a web page and in a printable PDF that are optimized for search. but don’t stop there.

The case study should be incorporated into your marketing and sales efforts in order for people to actually read it. You can continue to promote your case study by: 

Making it easy to find on your site – include the case study in your site navigation and link to it as a call to action from relevant industry and product pages. Gating content behind a lead form can help generate new leads.

Creating a direct email to promote the case study to a segmented list in your database or adding the case study to existing lead nurturing programs.

Making sure sales has it and knows when to use it

Publishing a news release around the customer success story

Distributing at trade shows

Writing a blog post on the topic and having the case study serve as a call to action

How to Repurpose Your Case Study

While a case study is very useful in full-length form, you can also benefit from using pieces of the case study in different marketing materials. For example, use a customer quote from the case in email marketing, or create summary slides for a sales presentation or corporate presentation, video etc.

Think of the different ways your personas prefer to engage with content and expand on the original case study. The case study will have authority and authenticity when you combine it with a testimonial, preferably video!

Most case studies have a shelf life of about one year before they need to be reviewed and revised. As your products and services evolve, or the customer application achieves greater results, make sure the case study includes the latest information.

Next Steps with TREW Marketing

Looking for additional support to help you get started? We've got your covered. 

A good first step would be to download our B2B Case Study Template . This template will take you from blank page to final draft with step-by-step instructions. 

Next, consider enrolling in the next session of Content Writing, Engineered , our six week training course with live coaching. This course helps writers, marketers, and engineers work through our proven technical research, writing, review and promotion process. Students will create a final piece content by the end of the course, receiving feedback every step of the way. 

TREW is a marketing agency dedicated to reaching engineering and technical audiences through a range of marketing initiatives.   Contact us   today to learn more about the services we offer. 

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About TREW Marketing

TREW Marketing is a strategy-first content marketing agency serving B2B companies that target highly technical buyers. With deep experience in the design, embedded, measurement and automation, and software industries, TREW Marketing provides branding, marketing strategy, content development, and digital marketing services to help customers efficiently and effectively achieve business goals.

Browse Course Material

Course info.

• Prof. Lionel C. Kimerling

Departments

• Materials Science and Engineering

As Taught In

• Electrical Engineering
• Electronic Materials

Learning Resource Types

Principles of engineering practice, case studies.

Case Study and Project Reports will be presented by the assigned Teams. The process is as follows:

Prof. Kimerling will lead a short in-class discussion on the approach for each Case Study or Project. Q&A is encouraged to clarify specific details.

The Instructors and TAs will moderate online Discussion Forums: within this Forum students should post their team’s tentative outline, develop concepts, discuss sources and preliminary findings. Instructors and TA will provide feedback within this Discussion Forum.

An optional office meeting with Prof. Kimerling is available if desired by any Group.

On the day of presentations, each Group must present a 20 minute presentation of 5-6 slides. Each member of the Group must present one slide from this presentation. Slides must be posted to the Web site the night before.

Students are expected to bring hard copies of all presentations to class.

Corrected slides and a final 2-page report must be posted to the Web site two days after presentation.

Grade assignment for the Case Studies and Projects will account for the following:

• presentation and writing skills
• clarity and rationality of the design execution
• presentation of background, issues, alternatives and conclusions

All student work is presented with permission of the authors.

You are leaving MIT OpenCourseWare

Sourcing & Supply Chain Report: Data is the New Currency

Design for Manufacturing Examples: Real-Life Engineering Case Studies

Key Takeaways:

• More than 70% of a part’s cost can be locked in during the early design phase
• Adopt a robust DFM process using digital manufacturing simulation tools to address cost, sustainability, and innovative design iterations simultaneously

The Full Article:

Typically, more than 70% of a part’s cost is locked in once its design is finalized. And at that point, manufacturing and sourcing teams have limited options to optimize part costs. That’s why cost modeling is exponentially more effective during the design phase. Product engineers need the ability to identify viable, cost-effective design alternatives while a project is still on the drawing board. This approach empowers design teams to innovate without sacrificing time to market or profit margins.

We explore this topic in greater detail by examining real-life examples to illustrate a key DFM principle in action. This includes why spreadsheets and other tools that rely on historical estimates provide a static, incomplete view of costing data – and how you can overcome this challenge with solutions that link design decisions to cost outcomes. Areas addressed include:

• The Design for Manufacturing (DFM) Imperative
• Overview of Important Cost Categories
• DFM Success Stories: Identifying Cost Inefficiencies
• Hidden Material Cost Drivers
• DFM Material Conversion Cost Example
• Other Methods for Cost-Effective Design for Manufacturability
• Learn More About the Power of Digital Manufacturing Insights

1) The Design for Manufacturing (DFM) Imperative

What if engineers had precise, design-level guidance on key cost drivers for their new product designs? And what if they had the insight to see how the cost is being affected by raw materials, conversion (i.e., the cost of turning raw material into a part), routing, and other manufacturability issues?

Having access to this capability would provide design and cost engineers with guidance to revise parts for added cost efficiency during the design phase. aPriori’s Manufacturing Insights Platform offers a solution that enables organizations to achieve this objective.

Unlike traditional spreadsheets, aPriori automatically evaluates the geometry of 3D CAD models whenever they are checked into a product lifecycle management (PLM) system. Through this software functionality, engineers gain real-time cost insights for parts and sub-assemblies, improving design and sourcing decisions.

Moreover, aPriori provides teams with a deeper understanding of the complex factors influencing part costs. The software is also equipped with cost and process modeling capabilities , enabling engineers to configure and run various scenarios. As a result, teams can seamlessly compare a part’s material, supplier, regional expenses, and more to make informed decisions.

To understand the impact of advanced manufacturing cost modeling, it’s helpful to consider the factors that contribute to a part’s final cost. Below, we break down a few key categories of part cost. The specifics may vary greatly, but these basic cost categories apply whether the part in question is sheet metal or plastic, cast or machined.

2) Overview of Important Cost Categories

Direct + variable costs:.

The powerful interaction between each choice in the direct/variable cost category is significantly important. While engineering decisions may have an impact on period costs in the long run, we will focus on direct costs, as they often have the most substantial impact. The following categories describe the expenses associated with the marginal cost of producing each additional part.

Key Drivers of Material Costs

• Material type
• Material stock size (standard or non-standard)
• Material selection and utilization
• Special grain orientations (e.g., tight bends on a part may only allow manufacturing to orient the part in one direction when cutting it on the sheet)

Key Drivers of Overhead and Labor Costs

• Cycle time to make the part. Note: more than one machine may be used to make a part.
• Number of times that the part must be set up – whether in one machine or multiple machines
• Type and size of machine(s) that will be used to make the part
• Any secondary production processes such as paint, heat treatment, etc.

Indirect/Period Costs:

These costs matter for overall profitability but aren’t necessarily immediately impacted by marginal production changes. For instance, a factory will have some base level of maintenance costs regardless of the number of parts being made within a given period. These costs must be associated with specific supporting functions and spread across all parts produced.

Key Factory-Related Cost Drivers

• Energy costs
• Heating and cooling the plant
• Cleaning and maintenance
• Purchasing, manufacturing, engineering, shipping and receiving, and other supporting business functions

Key Administrative Cost Drivers

• General management costs
• Sales, marketing, and business development expenditures
• Technology support (e.g., IT staff or services)

Capital Expenditures (CapEx) and Non-Recurring Costs:

• Examples include initial investments in productive capital such as molds, stamping dies, machining fixtures, weld fixtures, and more.
• The cost impact of capital expenditures will vary depending on the complexity of the part, number of cavities, number of parts over the life of the tool, etc.

3) DFM Success Stories: Identifying Cost Inefficiencies

We developed both case studies using aPriori’s digital factory capabilities, which involve simulated production based on modeling a part’s digital twin .

During the design stage, you don’t need the absolute value estimate to be exact; a good, reliable approximation will suffice. For instance, you may determine that 20% of the part cost is material and 65% is conversion cost. While these amounts may vary during final production, they can provide a useful guidepost for prioritizing cost optimization projects. This practice can help you save time by avoiding product design changes that will have minimal impact on cost.

Manufacturing insights can help engineers minimize time-consuming activities and work faster. This automation-driven platform can determine the most efficient manufacturing methodology through near-instant cost estimates for new design alternatives.

Material Cost Example One: Truck Sheet Metal Fan Cover Redesign

The following screenshot shows that 88% of the fan cover cost is material. To reduce material costs, you can:

• Select an alternative material that is cheaper (but still reflects functional load requirements and tolerances).
• Use less material by making the part thinner, adding ribbed forms to strengthen it, or improving material utilization to reduce waste.

The product developer recognized that the material choice was the primary cost driver and reduced the part size without altering the size of the opening or component mating points. The following screenshot displays his final solution.

Note that while labor and overhead costs increased from $0.49 to $0.53, the material cost dropped from $7.51 to $5.63, saving $1.88 – which is a 25% savings. This improvement has paid for itself exponentially because the part is still used in tens of thousands of trucks.

This is a great example of how a reliable cost estimate is useful for prioritizing redesign work. A good cost vector (whether the cost is going up or down, by a little or a lot) is sufficient. For example, if the material cost dropped by only $1.50 instead of $1.88, the price reduction would still warrant a redesign.

Material Cost Example Two: Plastic Seat

A manufacturer produces approximately 200,000 seats annually. The digital manufacturing cost model revealed that material is 67% of the total cost.

The engineer redesigning the seat has two options:

• Use lower-cost materials. Note: had the conversion cost been the most expensive, you may have wanted a material that cools faster, thereby decreasing the cycle time and production cost.
• Reduce the amount of material without compromising seat integrity.

The engineer tried several alternative designs, including:

She began by reducing the thickness of the plastic from the top edge of the back of the seat down to 2/3 of the way and from the edge of the bottom of the seat to approximately ½ of the way to the middle of the seat. This change decreased the average thickness from 0.18” to 0.15”. It is critical to note that the cost of materials, labor, and overhead was also reduced. That’s because the thinner part cools faster, leading to a double benefit: a reduction in material and manufacturing costs, totaling $0.95 on a $5 component – a nearly 20% reduction.

The second design change made the back hole slightly larger from its original 5”–6” in height. However, because this change only shaved a few cents off the original cost, it was not worth the risk of potential quality issues or increased customer discomfort. The value of having real-time cost feedback “at the speed of design” enables you to catch these false starts far earlier in the process and maintain quality control by adhering to the principles of DFM.

4) Hidden Material Cost Drivers

• This approach worked until their factory became overwhelmed and started buying parts or sending them to another internal factory across the country. The parts became much more expensive because they needed to orient the components perpendicular to the bend, which limits the nesting flexibility of the part and requires more material. Simulated production software like aPriori can automatically identify if a bend is too tight and recommend a minimum bend angle.
• The organization suspected an unscrupulous bid from a supplier. Still, upon review, it found that the supplier had to buy a special forging or start with the next size-up standard bar to meet the customer’s requirements. Either way, the cost would be disproportionately impacted. A diameter reduction of just a few millimeters fixed the issue, and the final design still had plenty of inertia margin.

5) DFM Material Conversion Cost Example

Let’s now move into conversion costs. Design engineers make choices that affect a large range of conversion costs, such as:

• Labor cost is proportional to cycle time. And the skill necessary to run the machine affects the wages of the operator. A 5-axis CNC machinist makes more than a 3-axis mill operator, for example.
• Set-up cost includes the number of machines to be set up and the number of times the part needs to be set up. Volume plays a large role in determining the per-product impact of set-up costs.
• Direct overhead cost is proportional to cycle time and the type and size of the machine.

An engineer was assigned to reduce the cost for a part like the one below. A quick design review revealed a 40/60 split between material cost and conversion cost. This implies that there may be opportunities to contain costs on both sides of this split without impacting lead times.

The engineer also noted that because this is a relatively low-volume part (300 units per year), it was being purchased as a machined part. While not very complex, the multiple slants on the surfaces were forcing this part to a 5-axis mill (rather than a comparatively cheap 3-axis mill).

The engineer had three choices to reduce costs:

• Redesign the part to reduce complexity for production on a cheaper machine
• Investigate machining costs further and address those issues in the design
• Identify alternative manufacturing processes for the part if they show promise

Using simulated manufacturing to analyze costs, the engineer discovered that the material utilization was only 11%, meaning that nearly 9 lbs. out of every 10 lbs. of material would be wasted. As expected, most of the cost of making the part was in machining, but from roughing operations, not finishing the part. This demonstrated that getting the part to near net shape was costing a lot in both material and manufacturing costs (see the figures below).

This part had been designated as a machined component because of the relatively low volume production of 300 units per year. However, based on this evidence, the engineer decided to investigate sand casting for the part. To see if it would be worth redoing the design and fatigue analysis to turn this into a casting, he created a cost estimate for sand casting the part.

After analyzing the cost difference of approximately $190 per part on 300 parts, which amounted to a potential annual savings of $57,000, the component was redesigned and purchased as a casting, resulting in significant cost savings.

Alternatively, imagine that this part was not a candidate for a casting process due to load and fatigue requirements, as is the part below. The process for reducing costs for the part is similar, except that you need to explore machining costs (some parts may be extruded as well).

Consider how manufacturability issues may be costing you dearly. By evaluating the actual production methods intended for a part, manufacturing insights can identify design features that pose significant challenges. This could involve pinpointing a lack of draft angles, areas with excessive or insufficient thickness, or features that need a side action in plastic injection molding or die casting. For machined parts, issues like sharp corners, obstructed surfaces, or curved surfaces that require ball milling could be highlighted. Addressing these problems early can streamline production and reduce critical costs.

Looking at this part below, we notice a similar ratio of material to conversion cost. And we dig into the features that make it difficult to produce, as casting or extruding it is not an option.

In the interest of time, we will limit ourselves to resolving as many of these L/D ratios as possible. The engineer realizes that the corner radius of those pockets is small, requiring a small tool diameter selection that violates customary L/D ratios and causes slower finishing times. He has the liberty to make those bigger, which won’t change the material consumed. See the figure below for the redesigned part.

Larger corner radii allow for larger diameter selection, which increases the tool’s ability to reach further down without shaking. Cycle time drops, and cost goes down. A 17% cost reduction is certainly worth the effort of the redesign.

6) Other Methods for Cost-Effective Design for Manufacturability

It is possible to affect the size of a machine in manufacturing by considering the design of the part. For example, suppose a part is being produced in China, where labor costs are low, but overhead costs are high due to the use of large, expensive machines. In that case, it may be worth considering features that can influence machine selection.

The die-cast part below has a web in the middle that is not functionally necessary. This web is causing the part to require two-side cores, one on each side. If the web were removed, only one core would be needed, the mold base size would decrease, and the machine size (tonnage) would go down, causing a reduction in tooling and piece part cost with a smaller machine/lower overhead rate. Additionally, you may be able to have more cavities now, which is a big plus if this is a high-volume part.

The number of set-ups can dramatically affect the cost of a low-volume part. A hole that can’t be accessed from an already available set-up direction (aPriori can show you those) can cause an extra set-up.

Too many of these will require a more expensive machine, for example, forcing a move from a 3-axis to a 4-axis or 5-axis. Did you know that if your sheet metal part has an acute angle bend and an obtuse angle bend on the same part, then two bend breaks will have to be set up to make it? This may have minimal cost impact if the part is produced in large volumes, but if this is a low-volume part, it could create serious cost inefficiencies.

7) Learn More About the Power of Digital Manufacturing Insights

DFM is pivotal to identifying cost savings from the initial product design through material selection and manufacturing. By integrating aPriori’s advanced manufacturing insights, product engineers gain a deeper understanding of how seemingly small variables can significantly impact cost and other factors.

This approach provides product design and cost engineers with clear visibility and automated guidance to make informed decisions that enhance both product quality and profitability. The adoption of DFM best practices, supported by aPriori’s insights, can ensure that products are designed for performance, profitability, sustainability, and market success.

This post was originally published on Aug. 12, 2020, and updated on April 18, 2024.

Ready to Unleash the Power of DFM?

More Resources:

• Podcast:  How Design for Manufacturing Saves $Millions
• Video: Design Engineering Tips for Reducing Mfg. Costs on New Product Designs
• Webinar: Product Design – Reduce Cost, Carbon, and Risk

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Writing A Case Study

Case Study Examples

Brilliant Case Study Examples and Templates For Your Help

15 min read

People also read

A Complete Case Study Writing Guide With Examples

Simple Case Study Format for Students to Follow

Understand the Types of Case Study Here

It’s no surprise that writing a case study is one of the most challenging academic tasks for students. You’re definitely not alone here!

Most people don't realize that there are specific guidelines to follow when writing a case study. If you don't know where to start, it's easy to get overwhelmed and give up before you even begin.

Don't worry! Let us help you out!

We've collected over 25 free case study examples with solutions just for you. These samples with solutions will help you win over your panel and score high marks on your case studies.

So, what are you waiting for? Let's dive in and learn the secrets to writing a successful case study.

• 1. An Overview of Case Studies
• 2. Case Study Examples for Students
• 3. Business Case Study Examples
• 4. Medical Case Study Examples
• 5. Psychology Case Study Examples 
• 6. Sales Case Study Examples
• 7. Interview Case Study Examples
• 8. Marketing Case Study Examples
• 9. Tips to Write a Good Case Study

An Overview of Case Studies

A case study is a research method used to study a particular individual, group, or situation in depth. It involves analyzing and interpreting data from a variety of sources to gain insight into the subject being studied. 

Case studies are often used in psychology, business, and education to explore complicated problems and find solutions. They usually have detailed descriptions of the subject, background info, and an analysis of the main issues.

The goal of a case study is to provide a comprehensive understanding of the subject. Typically, case studies can be divided into three parts, challenges, solutions, and results. 

Here is a case study sample PDF so you can have a clearer understanding of what a case study actually is:

Case Study Sample PDF

How to Write a Case Study Examples

Learn how to write a case study with the help of our comprehensive case study guide.

Case Study Examples for Students

Quite often, students are asked to present case studies in their academic journeys. The reason instructors assign case studies is for students to sharpen their critical analysis skills, understand how companies make profits, etc.

Below are some case study examples in research, suitable for students:

Case Study Example in Software Engineering

Qualitative Research Case Study Sample

Software Quality Assurance Case Study

Social Work Case Study Example

Ethical Case Study

Case Study Example PDF

These examples can guide you on how to structure and format your own case studies.

Struggling with formatting your case study? Check this case study format guide and perfect your document’s structure today.

Business Case Study Examples

A business case study examines a business’s specific challenge or goal and how it should be solved. Business case studies usually focus on several details related to the initial challenge and proposed solution. 

To help you out, here are some samples so you can create case studies that are related to businesses: 

Here are some more business case study examples:

Business Case Studies PDF

Business Case Studies Example

Typically, a business case study discovers one of your customer's stories and how you solved a problem for them. It allows your prospects to see how your solutions address their needs. 

Medical Case Study Examples

Medical case studies are an essential part of medical education. They help students to understand how to diagnose and treat patients. 

Here are some medical case study examples to help you.

Medical Case Study Example

Nursing Case Study Example

Want to understand the various types of case studies? Check out our types of case study blog to select the perfect type.

Psychology Case Study Examples 

Case studies are a great way of investigating individuals with psychological abnormalities. This is why it is a very common assignment in psychology courses. 

By examining all the aspects of your subject’s life, you discover the possible causes of exhibiting such behavior. 

For your help, here are some interesting psychology case study examples:

Psychology Case Study Example

Mental Health Case Study Example

Sales Case Study Examples

Case studies are important tools for sales teams’ performance improvement. By examining sales successes, teams can gain insights into effective strategies and create action plans to employ similar tactics.

By researching case studies of successful sales campaigns, sales teams can more accurately identify challenges and develop solutions.

Sales Case Study Example

Interview Case Study Examples

Interview case studies provide businesses with invaluable information. This data allows them to make informed decisions related to certain markets or subjects.

Interview Case Study Example

Marketing Case Study Examples

Marketing case studies are real-life stories that showcase how a business solves a problem. They typically discuss how a business achieves a goal using a specific marketing strategy or tactic.

They typically describe a challenge faced by a business, the solution implemented, and the results achieved.

This is a short sample marketing case study for you to get an idea of what an actual marketing case study looks like.

 Here are some more popular marketing studies that show how companies use case studies as a means of marketing and promotion:

“Chevrolet Discover the Unexpected” by Carol H. Williams

This case study explores Chevrolet's “ DTU Journalism Fellows ” program. The case study uses the initials “DTU” to generate interest and encourage readers to learn more. 

Multiple types of media, such as images and videos, are used to explain the challenges faced. The case study concludes with an overview of the achievements that were met.

Key points from the case study include:

• Using a well-known brand name in the title can create interest.
• Combining different media types, such as headings, images, and videos, can help engage readers and make the content more memorable.
• Providing a summary of the key achievements at the end of the case study can help readers better understand the project's impact.

“The Met” by Fantasy

“ The Met ” by Fantasy is a fictional redesign of the Metropolitan Museum of Art in New York City, created by the design studio Fantasy. The case study clearly and simply showcases the museum's website redesign.

The Met emphasizes the website’s features and interface by showcasing each section of the interface individually, allowing the readers to concentrate on the significant elements.

For those who prefer text, each feature includes an objective description. The case study also includes a “Contact Us” call-to-action at the bottom of the page, inviting visitors to contact the company.

Key points from this “The Met” include:

• Keeping the case study simple and clean can help readers focus on the most important aspects.
• Presenting the features and solutions with a visual showcase can be more effective than writing a lot of text.
• Including a clear call-to-action at the end of the case study can encourage visitors to contact the company for more information.

“Better Experiences for All” by Herman Miller

Herman Miller's minimalist approach to furniture design translates to their case study, “ Better Experiences for All ”, for a Dubai hospital. The page features a captivating video with closed-captioning and expandable text for accessibility.

The case study presents a wealth of information in a concise format, enabling users to grasp the complexities of the strategy with ease. It concludes with a client testimonial and a list of furniture items purchased from the brand.

Key points from the “Better Experiences” include:

• Make sure your case study is user-friendly by including accessibility features like closed captioning and expandable text.
• Include a list of products that were used in the project to guide potential customers.

“NetApp” by Evisort 

Evisort's case study on “ NetApp ” stands out for its informative and compelling approach. The study begins with a client-centric overview of NetApp, strategically directing attention to the client rather than the company or team involved.

The case study incorporates client quotes and explores NetApp’s challenges during COVID-19. Evisort showcases its value as a client partner by showing how its services supported NetApp through difficult times. 

• Provide an overview of the company in the client’s words, and put focus on the customer. 
• Highlight how your services can help clients during challenging times.
• Make your case study accessible by providing it in various formats.

“Red Sox Season Campaign,” by CTP Boston

The “ Red Sox Season Campaign ” showcases a perfect blend of different media, such as video, text, and images. Upon visiting the page, the video plays automatically, there are videos of Red Sox players, their images, and print ads that can be enlarged with a click.

The page features an intuitive design and invites viewers to appreciate CTP's well-rounded campaign for Boston's beloved baseball team. There’s also a CTA that prompts viewers to learn how CTP can create a similar campaign for their brand.

Some key points to take away from the “Red Sox Season Campaign”: 

• Including a variety of media such as video, images, and text can make your case study more engaging and compelling.
• Include a call-to-action at the end of your study that encourages viewers to take the next step towards becoming a customer or prospect.

“Airbnb + Zendesk” by Zendesk

The case study by Zendesk, titled “ Airbnb + Zendesk : Building a powerful solution together,” showcases a true partnership between Airbnb and Zendesk. 

The article begins with an intriguing opening statement, “Halfway around the globe is a place to stay with your name on it. At least for a weekend,” and uses stunning images of beautiful Airbnb locations to captivate readers.

Instead of solely highlighting Zendesk's product, the case study is crafted to tell a good story and highlight Airbnb's service in detail. This strategy makes the case study more authentic and relatable.

Some key points to take away from this case study are:

• Use client's offerings' images rather than just screenshots of your own product or service.
• To begin the case study, it is recommended to include a distinct CTA. For instance, Zendesk presents two alternatives, namely to initiate a trial or seek a solution.

“Influencer Marketing” by Trend and WarbyParker

The case study "Influencer Marketing" by Trend and Warby Parker highlights the potential of influencer content marketing, even when working with a limited budget. 

The “Wearing Warby” campaign involved influencers wearing Warby Parker glasses during their daily activities, providing a glimpse of the brand's products in use. 

This strategy enhanced the brand's relatability with influencers' followers. While not detailing specific tactics, the case study effectively illustrates the impact of third-person case studies in showcasing campaign results.

Key points to take away from this case study are:

• Influencer marketing can be effective even with a limited budget.
• Showcasing products being used in everyday life can make a brand more approachable and relatable.
• Third-person case studies can be useful in highlighting the success of a campaign.

Marketing Case Study Template

Marketing Case Study Example

Now that you have read multiple case study examples, hop on to our tips.

Tips to Write a Good Case Study

Here are some note-worthy tips to craft a winning case study 

• Define the purpose of the case study This will help you to focus on the most important aspects of the case. The case study objective helps to ensure that your finished product is concise and to the point.
• Choose a real-life example. One of the best ways to write a successful case study is to choose a real-life example. This will give your readers a chance to see how the concepts apply in a real-world setting.
• Keep it brief. This means that you should only include information that is directly relevant to your topic and avoid adding unnecessary details.
• Use strong evidence. To make your case study convincing, you will need to use strong evidence. This can include statistics, data from research studies, or quotes from experts in the field.
• Edit and proofread your work. Before you submit your case study, be sure to edit and proofread your work carefully. This will help to ensure that there are no errors and that your paper is clear and concise.

There you go!

We’re sure that now you have secrets to writing a great case study at your fingertips! This blog teaches the key guidelines of various case studies with samples. So grab your pen and start crafting a winning case study right away!

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Estimation of Rock Mass Equivalent Permeability Around Tunnel Route Using the Geostatistical Methods: A Case Study

• Research Paper
• Published: 05 September 2024

Cite this article

• Sanaz Khoubani 1 ,
• Ali Aalianvari 1 &
• Saeed Soltani-Mohammadi 1  

The objective of this paper is to estimate the equivalent permeability of the rock surrounding the tailrace tunnel of the Azad Dam pumped storage power plant, using geostatistical methods. The permeability of the rock mass is a critical factor that influences the estimation of water flow rates. Since the tunnel passes through various geological units with different permeabilities, it is crucial to estimate the equivalent permeability for each unit in order to predict the water seepage from that unit into the tunnel. In order to estimate the permeability along the tunnel and underground structures, twelve exploratory boreholes were drilled, and water pressure tests were conducted. Due to the distribution of the exploratory boreholes, a study and statistical analysis are necessary to determine the permeability of the rock mass for each geological unit. Using geostatistical log kriging, multiple indicator kriging with four thresholds, and multiple indicator kriging with five thresholds, the permeability of the rock mass at the tunnel route was estimated. The results indicate that at least 40% of the rock mass has low permeability, while the remaining mass of the tunnel passes through rocks with moderate to high permeability. The accuracy of the estimated permeability values was evaluated by predicting the water inflow into the tunnel using the estimated permeability values and comparing it to the observed flow. Numerical models were generated for each geological unit to estimate the water inflow into the tunnel, based on the results of the geostatistical methods. Log kriging, multiple indicator kriging with four thresholds, and multiple indicator kriging with five thresholds were used to calculate the water inflow, resulting in 94.15, 94.15, and 127.5 L per second, respectively. The results of the modeling were compared to the observed water flow into the tunnel. Comparing the modeling results to both the statistical methods and observed values showed errors of 31.2%, 31.2%, and 6.9%, respectively. Of the three methods, the multiple indicator kriging computational method with five thresholds was found to be the most accurate, with the least amount of error and the closest approximation to the actual value. As a result, it was selected as the best method.

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Prediction of rock mass along tunnels by geostatistics

Interpretation of variability of rock mass rating by geostatistical analysis: a case study in Western Turkey

Evaluation of rock mass permeability along a borehole by integrating the techniques of geological features and logistic regression: a case study in Taiwan

Data availability.

No datasets were generated or analysed during the current study.

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Department of Mining Engineering, Faculty of Engineering, University of Kashan, Kashan, Islamic Republic of Iran

Sanaz Khoubani, Ali Aalianvari & Saeed Soltani-Mohammadi

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Khoubani, S., Aalianvari, A. & Soltani-Mohammadi, S. Estimation of Rock Mass Equivalent Permeability Around Tunnel Route Using the Geostatistical Methods: A Case Study. Iran J Sci Technol Trans Civ Eng (2024). https://doi.org/10.1007/s40996-024-01608-1

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DOI : https://doi.org/10.1007/s40996-024-01608-1

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• Exponents and Powers Class 8 Case Study Questions Maths Chapter 10

Last Updated on September 8, 2024 by XAM CONTENT

Hello students, we are providing case study questions for class 8 maths. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 8 maths. In this article, you will find case study questions for CBSE Class 8 Maths Chapter 10 Exponents and Powers. It is a part of Case Study Questions for CBSE Class 8 Maths Series.

Table of Contents

Case Study Questions on Exponents and Powers

In a class science teacher give some information to all students about Solar system in following manner. Distance of earth from sun = 149600000 km Mass of earth = 5970000000000000000000000 kg Mass of Mars = 642000000000000000000000000000 kg Mass of sun = 1990000000000000000000000000000 kg Mass of moon = 73500000000000000000000 kg

Now asked them to answer some question.

Q. 1. Write distance of earth from sun in standard form? (a) 1.496×10 8 km (b) 14.96×10 8 km (c) 1.496×10 9 km (d) 14.96×10 9 km

Difficulty Level: Medium

Ans. Option (a) is correct. Explanation: In standard notation we write by using power of 10 so 149600000 km = 1.496 × 10 8 km

Q. 2. Write mass of sun in standard notation? (a) 19.9 × 10 28 kg (b) 1.99 × 10 28 kg (c) 1.99 × 10 30 kg (d) 19.9 × 10 30 kg

Ans. Option (c) is correct.

Q. 3. Mass of earth in standard notation: (a) 5.97 × 10 24 kg (b) 59.7 × 10 24 kg (c) 5.97 × 10 26 kg (d) 59.7 × 10 26 kg

Ans. Option (a) is correct.

Q. 4. Calculate the total mass of earth and moon.

Difficulty Level: Hard

Sol. Mass of earth = 5.97 × 10 24 kg Mass of moon = 7.35 × 10 22 kg Change mass of earth = 597.0 × 10 22 kg Sum of mass of earth and moon = 597.0 × 10 22 + 7.35 × 10 22 = 604.35 × 10 22 kg

Q. 5. Calculate difference of mass of mars from mass of sun?

Sol. Mass of sun = 1.99 × 10 30 kg Change mass of sun = 19.9 × 10 29 kg Mass of mars = 6.42 × 10 29 kg Difference between mass of sun and mass of mars is 19.9 × 1029 kg – 6.42 × 10 29 kg = 13.52 × 10 29 kg Hence, difference between mass of sun and mars =13.52×10 29 kg.

• Mensuration Class 8 Case Study Questions Maths Chapter 9
• Algebraic Expressions and Identities Class 8 Case Study Questions Maths Chapter 8
• Comparing Quantities Class 8 Case Study Questions Maths Chapter 7
• Cube and Cube Roots Class 8 Case Study Questions Maths Chapter 6
• Square and Square Roots Class 8 Case Study Questions Maths Chapter 5
• Data Handling Class 8 Case Study Questions Maths Chapter 4
• Understanding Quadrilaterals Class 8 Case Study Questions Maths Chapter 3

Linear Equations in One Variable Class 8 Case Study Questions Maths Chapter 2

Rational numbers class 8 case study questions maths chapter 1, download ebooks for cbse class 8 maths.

• Rational Numbers Topicwise Worksheet for CBSE Class 8 Maths
• Linear Equations in One Variable Worksheet for CBSE Class 8 Maths
• Understanding Quadrilaterals Worksheet for CBSE Class 8 Maths
• Data Handling Worksheet for CBSE Class 8 Maths
• Squares and Square Roots Worksheet for CBSE Class 8 Maths
• Cube and Cube Roots Worksheet for CBSE Class 8 Maths
• Comparing Quantities Worksheet for CBSE Class 8 Maths
• Algebraic Expressions and Identities Worksheet for CBSE Class 8 Maths

Topics from which case study questions may be asked

• Use of Exponents to Express Small Numbers in Standard Form
• Comparing very large number and very small numbers
• Powers with negative Exponents
• Laws of Exponents

When any non-zero integer is multiplied repeatedly with itself, it is called exponential form of the given number.

a b Here, a = base and b = exponent and we read it as ‘a’ raised to the power ‘b’.

Case study questions from the above given topic may be asked.

Frequently Asked Questions (FAQs) on Exponents and Powers Case Study

Q1: what are the important topics covered in chapter 10 exponents and powers for class 8.

A1: The key topics include laws of exponents, simplifying expressions using exponents, powers with negative exponents, and expressing numbers in standard and exponential forms.

Q2: What is an exponent in mathematics?

A2: An exponent refers to the number of times a number, known as the base, is multiplied by itself. For example, in 2 3 , 2 is the base and 3 is the exponent, meaning 2 × 2 × 2 = 8.

Q3: What are the laws of exponents?

A3: – Product law: $a^m \times a^n=a^{m+n}$ – Quotient law: $a^m \div a^n=a^{m-n}$ – Power of a power law: $\left(a^m\right)^n=a^{m \times n}$ – Zero exponent rule: $a^0=1$ (where $a \neq 0$ ) – Negative exponent rule: $a^{-m}=\frac{1}{a^m}$

Q4: How are negative exponents handled?

A4: Negative exponents represent reciprocals. For example, 2 −3 = 1/8​. So, when you have a negative exponent, you convert it into a fraction.

Q5: What is the power of zero?

A5: any non-zero number raised to the power of zero is always equal to 1.

Q6: How do we express large numbers using exponents?

A6: Large numbers are often written using exponents to make them more manageable. For example, 1 billion can be written as 10 9 .

Q7: Why do we use exponents in mathematics?

A7: Exponents simplify the representation and calculation of large or small numbers. They are essential in scientific notation, which is widely used in scientific fields to manage very large or very small values.

Q8: Are there any online resources or tools available for practicing Mensuration case study questions?

A8: We provide case study questions for CBSE Class 8 Maths on our  website . Students can visit the website and practice sufficient case study questions and prepare for their exams. If you need more case study questions, then you can visit  Physics Gurukul  website. they are having a large collection of case study questions for all classes.

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