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| Criterion |  Operations Gemba Walk |  Growth A/B Testing |  Growth Funnel Analysis |  Product Discovery Smoke Test |
|---|---|---|---|---|
Purposedifferent | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | 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 many visitors or users drop off along the way, the reason behind the number often stays hidden. Funnel Analysis exposes these transitions and makes visible exactly where the path collapses. | 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 | Low | High | Medium | Low |
Timedifferent | 30-120 min | 1-4 Wochen | 1-3 h | 1-5 Tage |
Participantsdifferent | 2-6 | 1-6 | 1-5 | Nutzertraffic |
Formatdifferent | Workshop | Async | Async | Async |
Outputdifferent | Observation Notes, Improvement Ideas | Experiment results, Decision log, Learning summary | Funnel report, Drop-off analysis, Optimization hypotheses | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | LeanObservationProcessOperations | ExperimentsGrowthAnalyticsValidation | AnalyticsConversionGrowth | ValidationExperimentsDemandGrowth |