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| Criterion |  Operations 8D Problem Solving |  Delivery Value Stream Mapping |  Operations Waste Analysis |  Operations DMAIC |
|---|---|---|---|---|
Purposedifferent | 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. | 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 a process that keeps people busy but creates little value, the method exposes waste. It directs attention to unnecessary movement, waiting times, rework, and overdelivery. | For a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. |
Complexitydifferent | High | Medium | Low | High |
Timedifferent | 1-6 Wochen | 1-3 h | 45-120 min | 2-12 Wochen |
Participantsdifferent | 4-10 | 4-10 | 2-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Current-state map, Future-state map, Bottleneck list | Waste Map, Prioritized Waste, Improvement Backlog | Project Charter, Measurement Plan, Cause Analysis, Control Plan |
Tagsno overlap | QualityProblem solvingRoot cause | LeanFlowWasteDelivery | WasteLeanProcess improvement | Continuous improvementQualityProcess improvement |