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| Criterion |  Engineering Fault Isolation |  Operations Kaizen Event |  Operations Fishbone Diagram |
|---|---|---|---|
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. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 30-180 min | 0.5-5 Tage | 30-60 min |
Participantsdifferent | 1-6 | 4-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | TroubleshootingDiagnosisEngineering | LeanContinuous improvementOperations | Root causeQualityOperations |
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