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| Criterion |  Engineering Failure Scenario Analysis |  Product Discovery Fake Door Test |  Product Discovery Smoke Test |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. | 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. | 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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-3 h | 1-5 Tage | 1-5 Tage | 45-60 min |
Participantsdifferent | 3-8 | Nutzertraffic | Nutzertraffic | 2-8 |
Formatdifferent | Workshop | Async | Async | Workshop + async |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Click Data, Interest Signal, Learning Decision | Interest Metrics, Conversion Signal, Learning Note | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | FailureResilienceRisk | ValidationExperimentsDemandDiscovery | ValidationExperimentsDemandGrowth | AssumptionsRiskExperimentsValidation |