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| Criterion |  Engineering Fault Isolation |  Operations Standard Work Analysis |  Operations Barrier Analysis |
|---|---|---|---|
Purposedifferent | 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. | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-180 min | 1-3 h | 2-4 h |
Participantsdifferent | 1-6 | 2-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | TroubleshootingDiagnosisEngineering | LeanProcessQuality | Root causeSafetyIncident |
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