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| Criterion |  Product Strategy DIBB |  Decision Making Assumption Surfacing |  Product Discovery Fake Door Test |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | 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 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 1-2 h | 45-90 min | 1-5 Tage | 20-35 min |
Participantsdifferent | 2-8 | 2-8 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | DIBB document, Belief list, Bet list, Learning report | Assumption List, Critical Assumptions, Learning Plan | Click Data, Interest Signal, Learning Decision | Test Card with a pre-set threshold |
Tagsno overlap | StrategyDecisionAssumptionsHypothesis | AssumptionsRiskDecisionDiscovery | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryHypothesis |