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| Criterion |  Innovation Crazy 8s |  Product Discovery Learning Card |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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 | 8-15 min | 25-40 min | 1-5 Tage |
Participantsdifferent | 1-10 | 1-5 | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Async |
Outputdifferent | Sketch Set, Idea Shortlist, Direction Options | Learning Card with evidence and next action | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | BrainstormingSketchingSpeedDivergenceDesign sprint | ExperimentsValidationDiscoveryLearning | ValidationExperimentsDemandDiscovery |
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