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| Criterion |  Decision Making Assumption Surfacing |  Product Discovery Smoke Test |  Product Discovery Test Card |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | 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 | Low | Low | Low | Medium |
Timedifferent | 45-90 min | 1-5 Tage | 20-35 min | 1-5 Tage |
Participantsdifferent | 2-8 | Nutzertraffic | 1-5 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Interest Metrics, Conversion Signal, Learning Note | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | ValidationExperimentsDemandGrowth | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |