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| Criterion |  Operations A3 Problem Solving |  Delivery Value Stream Mapping |  Operations Gemba Walk |  Operations Kaizen Event |
|---|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. | 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 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 | Medium | Medium | Low | Medium |
Timedifferent | 45-90 min | 1-3 h | 30-120 min | 0.5-5 Tage |
Participantsdifferent | 2-5 | 4-10 | 2-6 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Current-state map, Future-state map, Bottleneck list | Observation Notes, Improvement Ideas | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update |
Tags1 shared | LeanProblem solvingCoachingOperations | LeanFlowWasteDelivery | LeanObservationProcessOperations | LeanContinuous improvementOperations |