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| Criterion |  Operations ABC Analysis |  Operations DMAIC |  Operations A3 Problem Solving |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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. | 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. | 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 | High | Medium | High |
Timedifferent | 30-60 min | 2-12 Wochen | 45-90 min | 1-6 Wochen |
Participantsdifferent | 1-5 | 3-10 | 2-5 | 4-10 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ABC Classification, Focus Rules, Control List | Project Charter, Measurement Plan, Cause Analysis, Control Plan | A3 Report, Action Plan, Root Cause Analysis | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | PrioritizationOperationsPortfolio | Continuous improvementQualityProcess improvement | LeanProblem solvingCoachingOperations | QualityProblem solvingRoot cause |