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Selected:Failure Mode and Effects AnalysisRiskiest Assumption TestFake Door TestAssumption Surfacing
| Criterion |  Operations Failure Mode and Effects Analysis |  Product Discovery Riskiest Assumption Test |  Product Discovery Fake Door Test |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. | 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. | 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. |
Complexitydifferent | High | Medium | Medium | Low |
Timedifferent | 2-6 h | 1-2 Wochen pro Iteration | 1-5 Tage | 45-90 min |
Participantsdifferent | 3-10 | 2-6 | Nutzertraffic | 2-8 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | Prioritized Assumption List, Test Plan, Results Report | Click Data, Interest Signal, Learning Decision | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | RiskQualityOperationsRoot cause | ExperimentsValidationDiscoveryAssumptions | ValidationExperimentsDemandDiscovery | AssumptionsRiskDecisionDiscovery |