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| Criterion |  Product Discovery Working Backwards |  Product Discovery Assumption Mapping |  Product Discovery Test Card |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When the target state and benefit need to be clear first, it thinks backward from the desired outcome into the product logic. It sharpens vision, objections, and value proposition before elaboration. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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 | Medium | Medium | Low | Medium |
Timedifferent | 4-8 h, mehrere Iterationen | 45-60 min | 20-35 min | 1-5 Tage |
Participantsdifferent | 2-6 | 2-8 | 1-5 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Future Press Release, FAQ, Vision Statement | Assumption map, Test backlog, Risk ranking | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | VisionNarrativeAlignment | AssumptionsRiskExperimentsValidation | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |