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| Criterion |  Innovation Lean Startup |  Growth A/B Testing |  Operations Root Cause Tree Analysis |  Product Discovery Smoke Test |
|---|---|---|---|---|
Purposedifferent | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | 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. | 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. | 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. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | Wochen bis Monate je Lernzyklus | 1-4 Wochen | 1-3 h | 1-5 Tage |
Participantsdifferent | 2-8 | 1-6 | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop | Async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Experiment results, Decision log, Learning summary | Cause Tree, Evidence Notes, Countermeasures | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | LeanStartupValidationMVP | ExperimentsGrowthAnalyticsValidation | Root causeTreeIncidentQuality | ValidationExperimentsDemandGrowth |