Case studies without a decision are just galleries
Somebody is on your work page right now, and they are not admiring anything. They are trying to work out whether you have ever solved a problem shaped like theirs, and they will decide in under a minute.
That is the only job the page has. Everything on it either helps with that or occupies space.
What is a case study actually for?
A case study is a judgement sample. The buyer already assumes you can produce something that looks competent, because everybody’s portfolio looks competent and they can see the screenshot in two seconds. What they cannot see is how you think when the obvious answer is wrong.
Which is what they are buying. Nobody hires a studio because the last project looked nice. They hire it because they have a difficult problem and want evidence that the difficulty registered with somebody before.
The gallery pattern
Here is the format almost everyone uses. A hero shot of the finished homepage. Three device mockups at an angle. A colour palette and the typeface. A sentence saying the client needed a modern, user-friendly website. A closing line saying the client was delighted with the result.
Nothing in that is false. Nothing in it is checkable either. “Modern” and “user-friendly” and “delighted” cannot be argued with, which is exactly why they persuade nobody. Swap the logo and the screenshots and the words survive intact, which tells you they were never about that project.
Google’s own guidance on helpful content asks whether a page demonstrates “first-hand expertise and a depth of knowledge” and whether it offers analysis “beyond the obvious”. A gallery fails both tests, and it fails them for a human reader for precisely the same reason it fails for a search engine. There is no evidence in it that anybody was there.
In fairness, a gallery still beats an empty page. Across 54 Singapore B2B sites we reviewed over 2 weeks in August 2026, 19 published no project record, portfolio or case studies at all. If that is you, publish the gallery and improve it later.
Constraint, decision, consequence
Three things, and they are not hard to write once you accept that the first one is not the brief.
The constraint. Not what the client asked for. The condition that made the obvious answer wrong. A buyer who will assess you from another time zone and will not visit. Work awarded on prequalification rather than persuasion. Five separate disciplines that have to read as one package or the firm loses the job to a single-source competitor.
The decision. Something that could have gone the other way. If you cannot state the alternative you rejected, you did not make a decision, you followed a template. “We decided the homepage would open on availability rather than company history” is a decision. “We created a clean, modern design” is a description of a mood.
The consequence. Every real decision costs something. Something got demoted, cut, or made harder to reach. Saying so is the single most credible thing you can put on a portfolio page, because it is the one part a competitor will not copy.
We measured our own, and they failed
This is not a standard we arrived at by reading about it.
We measured our 32 published case studies earlier this year, 3 years after the studio opened. Median length 116 words. Of the 32, 21 opened with some variant of “X needed a website” and 14 followed it with “We developed a website for X”. That is a caption. It described what we sell, in the order we do it, with the client’s name changed each time.
So we rewrote the industrial ones first. Towa Marine is the clearest demonstration. It opens on the constraint rather than the client: a vessel alongside is losing money every hour it waits, and Towa’s buyers are superintendents and port engineers deciding from another time zone, under real time pressure, whether a Singapore yard can take the job now.
Then the decision, stated as a decision: the site would open on availability and reach rather than on company history. The commitment to respond within 24 hours and the three-yard footprint sit at the top, with the system-by-system capability list and a direct line immediately beneath.
Then the cost, which is the part most agencies leave out. Three decades of experience and the BizSafe certification still appear on that site, but they were deliberately demoted. They support the decision instead of delaying it. Somebody chose that, and a buyer reading the case study can tell.
The other 24 case studies on our site still use the old formula. They are being worked through. Publishing that here rather than quietly fixing it is the same principle: the useful version of a claim is the one that could be checked.
What to write instead
Open on the constraint in the first sentence, before the client’s name. Say what you decided and what you rejected. Say what it cost. Use the client’s own facts, in their own units, rather than adjectives. If you cannot name the client, describe the work precisely and anonymously, because anonymous specificity beats named vagueness every time.
The screens still belong on the page. They just cannot do the arguing.
And the reason this matters commercially is narrow but real. A buyer comparing 3 studios cannot separate them on craft, because all three portfolios look fine. They separate them on evidence of thinking, and only one of the three usually provides any. We publish what we charge and what moves the number for the same reason we publish the decisions: it is the part that can be checked.