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| Criterion |  Product Discovery Test Card |  Innovation Crazy 8s |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | With only a few minutes available and a still-fuzzy solution search, the method forces a wide range of variants. It produces fast sketches before the first idea can settle in, making different directions directly comparable and open to further development. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 20-35 min | 8-15 min | 1-5 Tage |
Participantsdifferent | 1-5 | 1-10 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Async |
Outputdifferent | Test Card with a pre-set threshold | Sketch Set, Idea Shortlist, Direction Options | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ExperimentsValidationDiscoveryHypothesis | BrainstormingSketchingSpeedDivergenceDesign sprint | ValidationExperimentsDemandDiscovery |
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