A case study helps a prospective client answer a specific question: does this company have experience solving a problem similar to mine? An attractive result matters, but choosing a provider also requires context, a clear scope of work and an explanation of the decisions made.
If a page contains only a client name, a few images and a claim that you “improved efficiency”, readers will struggle to understand your team's contribution or how that experience relates to their business.
Here is how to build a case study from genuine project materials, present results accurately and connect the story to a relevant service.
Start with the prospective client's question
Before preparing the case study, decide whose decision it should support. A small business owner, a marketing manager and a technical specialist may approach the same project with different questions.
For a service business website, it is useful to explain:
- the problem you addressed;
- the offer and audience you worked with;
- the constraints you considered;
- what your team actually did;
- the evidence supporting the result.
Choose details that help readers assess your approach. For a multilingual project, managing language versions and agreeing on content may be important. For a booking website, the relevant story is the journey from selecting a service to receiving a booking confirmation.
Give readers a quick project overview
The opening paragraphs should explain what the project involved and why it is worth reading about.
State the business sector, the task, the service delivered and your role. If you mention a timeline, clarify whether it covers development, the entire project including approvals, or the period used to observe results.
Build the title around the task and the work. For example: “A website for a service company: organising services and sending enquiries to a CRM”. This is a hypothetical title, not a description of a client project.
A generic title such as “A new company website” says very little about the provider's experience.
Explain the starting point and constraints
Describe what your team had to work with. Include information that explains the difficulty of the task and the choice of solution:
- what already existed when the project began;
- the materials supplied by the client;
- the functions that needed to be retained;
- the external systems the project depended on;
- the requirements that had to be met before launch.
You do not need to portray the client's previous work or another provider negatively. An observable fact is enough: for example, enquiries from several forms went to different channels, while the company needed one place to handle them.
Define your scope accurately. If you created the design and another team developed the website, make that clear. You can also name partners and explain how responsibilities were shared.
Explain the decisions you made
A list such as “design, responsive layouts, forms and analytics” describes the service scope, but reveals little about how you solved the problem.
For each major decision, use this sequence:
- What needed to be improved or implemented.
- The solution your team chose.
- Why it suited the project's conditions.
- How you checked that it worked.
Hypothetical example:
A company offers several services. A separate page was created for each, explaining the scope of work and how to enquire. The form records the selected service so that staff do not have to ask for it again during the first conversation. Before launch, the team checked that this field reached the CRM.
This example explains the reasoning behind the work. It does not claim that the structure itself increased sales.
For a more detailed look at page content, you can refer readers to the article on how to structure a service page.
Separate deliverables from measured impact
It helps to distinguish three types of result in a case study.
What you delivered. For example, a published website, a set of design files or a configured integration. This can be verified against the project scope and by checking the finished solution.
What changed in the business workflow. For example, enquiries now reach the agreed CRM with the selected service attached. Explain how this was verified rather than replacing evidence with a general promise.
Which business metrics you observed. Enquiries, sales, cost per enquiry and other metrics require a data source, a reporting period and a clear basis for comparison.
When using figures, explain:
- exactly what is being counted;
- the periods the data covers;
- where the data came from;
- whether the budget, offer, season or other channels changed at the same time;
- how much of the change can reasonably be attributed to your work.
A comparison between two periods does not, by itself, prove that a new website caused all the growth. If other influences have not been separated out, describe the observed change and its limitations.
If reliable commercial data is unavailable, publish the verified development outcome. A clear explanation of the decisions is more useful than an unsupported growth percentage.
Select materials that support the story
Each item should serve a clear purpose: showing the structure, interface behaviour, a specific solution or the result of a check.
Explain what readers are looking at and which question it answers. A series of similar images without commentary can take up a great deal of space while leaving the task and outcome unclear.
If the project changed after handover, date the version you show. A link to the client's current website may not demonstrate the state your team delivered.
Before publishing, agree on the use of the client's name, project materials, testimonial and figures. If the project cannot be identified, you can describe it without identifying details within the agreed conditions. Anonymisation does not make an unsupported result reliable.
A case study template for a service website
Build your case study around the following outline:
- Project: the business sector and service delivered.
- Task: what the client wanted to achieve and what needed to be implemented.
- Starting point: existing materials, systems and constraints.
- Your team's role: your contribution and the involvement of the client and partners.
- Decisions: the key actions and reasons for choosing them.
- Verification: how you confirmed that the result worked.
- Outcome: the deliverables and available metrics, with explanations.
- Applicability: what depends on the project's particular circumstances.
- Next step: a link to the relevant service or an invitation to discuss a similar task.
Not every project needs an equally long account. A small task may need only a concise explanation that answers the main questions. A complex integration will require more detail.
Connect case studies to the pages where clients choose a provider
Place links to relevant projects beside the service they demonstrate. On the case study page, let readers explore that service's scope and find out how to get in touch.
An About page can introduce the team and its approach, while case studies explain specific tasks you have completed. Connecting them helps readers check general statements against actual examples.
If you plan to bring services, case studies and team information into one coherent structure, you can discuss custom multi-page website development. The page list and initial portfolio content need to be agreed separately.
A useful case study gives prospective clients enough information to assess your role, approach and the project's relevance to their task. It creates a basis for a focused conversation about working together.