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| Criterion |  Operations ABC Analysis |  Engineering Fault Isolation |  Operations 8D Problem Solving |  Engineering Hypothesis-Driven Troubleshooting |
|---|---|---|---|---|
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. | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | 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 systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. |
Complexitydifferent | Low | Medium | High | Medium |
Timedifferent | 30-60 min | 30-180 min | 1-6 Wochen | 30-240 min |
Participantsdifferent | 1-5 | 1-6 | 4-10 | 1-6 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ABC Classification, Focus Rules, Control List | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary |
Tagsno overlap | PrioritizationOperationsPortfolio | TroubleshootingDiagnosisEngineering | QualityProblem solvingRoot cause | TroubleshootingProblem solvingDiagnosis |