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| Criterion |  Engineering Failure Scenario Analysis |  Product Discovery Test Card |  Product Discovery Fake Door Test |
|---|---|---|---|
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. | 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 | Medium | Low | Medium |
Timedifferent | 1-3 h | 20-35 min | 1-5 Tage |
Participantsdifferent | 3-8 | 1-5 | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Async |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | FailureResilienceRisk | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |
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