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| Criterion |  Growth A/B Testing |  Product Discovery Smoke Test |  Operations Root Cause Tree Analysis |
|---|---|---|---|
Purposedifferent | 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 only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 1-4 Wochen | 1-5 Tage | 1-3 h |
Participantsdifferent | 1-6 | Nutzertraffic | 2-8 |
Formatdifferent | Async | Async | Workshop |
Outputdifferent | Experiment results, Decision log, Learning summary | Interest Metrics, Conversion Signal, Learning Note | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | ExperimentsGrowthAnalyticsValidation | ValidationExperimentsDemandGrowth | Root causeTreeIncidentQuality |
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