Choose Prototype Fidelity from the Question You Need to Answer — concept overview: Question, Prototype form, Learning.

Choose Prototype Fidelity from the Question You Need to Answer

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A polished prototype is not always the best first test. Choose the level of detail that exposes the assumption under review without making the result look more settled than it is.

Stanford d.school's Design Thinking Bootleg includes prototyping and testing as modes of design work. Design Thinking Bootleg.

Isolate one uncertainty

For a hypothetical physical character, a rough volume model might explore proportions while a graphic mock-up explores a placement idea. Neither should be presented as a fully specified product. State which question the prototype can and cannot answer.

Topic map for Choose Prototype Fidelity from the Question You Need to Answer: Question; Prototype form; Learning.
Topic map: Question → Prototype form → Learning.

Record what changed after the test

Keep the observation, interpretation and next design action separate. A positive reaction to appearance is not confirmation of construction or performance. If the prototype's limitations affected the response, preserve that context.

The useful output is learning that informs a decision. Increasing fidelity should serve the next question, not become an automatic way to make an unresolved idea look ready for production.

Review distinctions for Choose Prototype Fidelity from the Question You Need to Answer: Rough model; Focused test; Next step.
Review distinctions: Rough model; Focused test; Next step.

Source reviewed 25 October 2026. Practical interpretation and original illustrations by PLUSHIP / Qunhe; examples are illustrative.

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