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| Criterion |  Operations Gemba Walk |  Growth A/B Testing |  Operations Fishbone Diagram |
|---|---|---|---|
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 a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Low | High | Low |
Timedifferent | 30-120 min | 1-4 Wochen | 30-60 min |
Participantsdifferent | 2-6 | 1-6 | 2-8 |
Formatdifferent | Workshop | Async | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Experiment results, Decision log, Learning summary | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | LeanObservationProcessOperations | ExperimentsGrowthAnalyticsValidation | Root causeQualityOperations |
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