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| Criterion |  Operations 8D Problem Solving |  Business Strategy Value Chain Analysis |  Operations Kepner-Tregoe |
|---|---|---|---|
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. | Value Chain Analysis shows where value is created, costs accrue, and differentiation becomes possible along the process. It compares strengths, risks, market logic, and courses of action. The result is captured as a value-chain map and lever list. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitysame | High | High | High |
Timedifferent | 1-6 Wochen | Half day | 2-8 h |
Participantsdifferent | 4-10 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Value Chain Map, Lever List | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | QualityProblem solvingRoot cause | StrategyBusiness modelDiagnosisAnalysis | Problem solvingRoot causeDecisionOperations |
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