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| Criterion |  Engineering Hypothesis-Driven Troubleshooting |  Operations ABC Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
Purposedifferent | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Medium | Low | High |
Timedifferent | 30-240 min | 30-60 min | 2-6 h |
Participantsdifferent | 1-6 | 1-5 | 3-10 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | ABC Classification, Focus Rules, Control List | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | TroubleshootingProblem solvingDiagnosis | PrioritizationOperationsPortfolio | RiskQualityOperationsRoot cause |
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