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| Criterion |  Operations Gemba Walk |  Growth Funnel Analysis |  Growth A/B Testing |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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 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 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Medium | High | Medium |
Timedifferent | 30-120 min | 1-3 h | 1-4 Wochen | 45-60 min |
Participantsdifferent | 2-6 | 1-5 | 1-6 | 2-8 |
Formatdifferent | Workshop | Async | Async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Funnel report, Drop-off analysis, Optimization hypotheses | Experiment results, Decision log, Learning summary | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | LeanObservationProcessOperations | AnalyticsConversionGrowth | ExperimentsGrowthAnalyticsValidation | AssumptionsRiskExperimentsValidation |