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| Criterion |  Operations ABC Analysis |  Engineering Fault Isolation |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
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 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 | Low | Medium | High |
Timedifferent | 30-60 min | 30-180 min | 2-6 h |
Participantsdifferent | 1-5 | 1-6 | 3-10 |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | ABC Classification, Focus Rules, Control List | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | PrioritizationOperationsPortfolio | TroubleshootingDiagnosisEngineering | RiskQualityOperationsRoot cause |
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