Three practices that separate an engagement from ordinary design work: every story is scored on an explicit grid before it passes, everything lands in one document that opens up, and the prototype is no longer a mockup.
The prototype comes out of testing with a score
Loop
Every story leaves the story mapping as a prototype, tested with the client's real users and scored. Below target, the story goes back into iteration. It does not pass until the target is met.
The value sits outside design: a score can be shown to a board, compared from one iteration to the next, and defended in front of someone who was not in the room.
- Framework
- Adapted SUPR-Q, scored 1 to 5, plus an NPS from 0 to 10
- Dimensions
- Simplicity · Usefulness · Relevance · Reassurance · Quality
- Slicing
- One business scenario at a time, one score per participant
- Evidence
- SPEOS: prototype tested by six client organisations, raw SUPR-Q around 4.5/5
The scale is explained to participants before they start: 1 useless or incomprehensible, 2 unclear, 3 works but could be better, 4 meets expectations, 5 intuitive, useful, reassuring. Without that explanation, two participants are not scoring the same thing.
The concept report
Synthesis
Everything above lands in a single document. It does not only show the result: it opens what sits behind each hypothesis, the research that produced it, the test that put it through its paces, the score it got.
That is what lets a board dig into any point weeks after the presentation, without having to ask again. And it is what aligns every stakeholder on the real value of what we are about to offer users: a value proposition written down nowhere reads differently in every department.
- Contains
- The hypotheses and what grounds them, the research artefacts, the tests, the scores, the trade-offs and their reasons
- Used to
- Defend a decision in front of someone who was not in the room
- Evidence
- BNP Paribas Fortis: an 86-page concept report, carried to the board by the sponsor
The prototype is the product
AI-assisted development
The clickable mockup has given way to a real front end, wired to a test database. It is no longer a simulation: it is the final product, responsive and adaptive, with the whole journey genuinely usable. Only the data is fake.
The effect on testing: the client no longer imagines, they use. And on the plan: the front end put in front of testers is the one that goes to production.
- Delivered
- Design system, components, pages, and the front end that carries them
- Tested
- In real conditions, the full journey, on mobile as well as desktop
- Evidence
- WeJustice: a complete MVP in public demo, front end built by me