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| Criterion |  Innovation Brainwriting |  Product Discovery Test Card |  Product Discovery Assumption Mapping |
|---|---|---|---|
Purposedifferent | When loud voices or hierarchy distort the idea search, the method creates a quiet entry into joint development. It gives everyone thinking space and gathers contributions without social brakes, making diversity more visible and easier to build on. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 15-30 min | 20-35 min | 45-60 min |
Participantsdifferent | 3-12 | 1-5 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Idea sheets, Expanded concepts, Prioritized list | Test Card with a pre-set threshold | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | BrainstormingCollaborationInclusionIdeas | ExperimentsValidationDiscoveryHypothesis | AssumptionsRiskExperimentsValidation |
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