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| Criterion |  Product Discovery Working Backwards |  Product Discovery Opportunity Solution Tree |  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 discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. | 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 | 1-2 h Setup, laufend | 20-35 min | 1-5 Tage |
Participantsdifferent | 2-6 | 2-6 | 1-5 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Future Press Release, FAQ, Vision Statement | Opportunity Solution Tree, Experiment Backlog, Learning Log | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | VisionNarrativeAlignment | DiscoveryOutcomesExperimentsOpportunity | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |