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| Criterion |  Operations Root Cause Analysis |  Engineering Fault Isolation |
|---|---|---|
Purposedifferent | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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. |
Complexitysame | Medium | Medium |
Timedifferent | 1-4 h | 30-180 min |
Participantsdifferent | 3-8 | 1-6 |
Formatsame | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area |
Tagsno overlap | Root causeProblem solvingQualityIncident | TroubleshootingDiagnosisEngineering |
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