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| Criterion |  Operations Gemba Walk |  Operations 5 Whys |  Operations Kaizen Event |
|---|---|---|---|
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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 30-120 min | 15-30 min | 0.5-5 Tage |
Participantsdifferent | 2-6 | 2-6 | 4-10 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Root cause notes, Countermeasures | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update |
Tags1 shared | LeanObservationProcessOperations | Root causeIncidentLeanProblem solving | LeanContinuous improvementOperations |
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