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| Criterion |  Operations Fault Tree Analysis |  Decision Making Assumption Surfacing |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | 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. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 2-6 h | 45-90 min | 1-5 Tage |
Participantsdifferent | 3-8 | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Assumption List, Critical Assumptions, Learning Plan | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | RiskRoot causeSafety | AssumptionsRiskDecisionDiscovery | ValidationExperimentsDemandDiscovery |
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