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| Criterion |  Operations Barrier Analysis |  Growth A/B Testing |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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 | High | Medium |
Timedifferent | 2-4 h | 1-4 Wochen | 1-5 Tage |
Participantsdifferent | 2-6 | 1-6 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Experiment results, Decision log, Learning summary | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | Root causeSafetyIncident | ExperimentsGrowthAnalyticsValidation | ValidationExperimentsDemandDiscovery |
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