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| Criterion |  Operations Gemba Walk |  Delivery Value Stream Mapping |  Operations 8D Problem Solving |
|---|---|---|---|
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 delivery work dissolves into wait times, handoffs, and hidden effort, Value Stream Mapping makes the actual flow visible. The method exposes bottlenecks, idle time, and feedback loops so lead time and improvement levers become tangible. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 30-120 min | 1-3 h | 1-6 Wochen |
Participantsdifferent | 2-6 | 4-10 | 4-10 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Current-state map, Future-state map, Bottleneck list | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | LeanObservationProcessOperations | LeanFlowWasteDelivery | QualityProblem solvingRoot cause |
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