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| Criterion |  Operations Runbook |  Growth A/B Testing |  Product Discovery Test Card |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | For recurring operational tasks or incidents, the method keeps solid action logic ready. It reduces uncertainty when time pressure, role changes, or rare situations demand fast access. | 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. | 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 | Low | High | Low | Medium |
Timedifferent | 20-60 min | 1-4 Wochen | 20-35 min | 1-5 Tage |
Participantsdifferent | 1-4 | 1-6 | 1-5 | Nutzertraffic |
Formatdifferent | Async | Async | Workshop + async | Async |
Outputdifferent | Runbook, Checklist, Escalation Path | Experiment results, Decision log, Learning summary | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | OperationsReliabilityDocumentation | ExperimentsGrowthAnalyticsValidation | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |