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| Criterion |  Operations Failure Mode and Effects Analysis |  Operations Family Tree Analysis |  Operations Fishbone Diagram |
|---|---|---|---|
Purposedifferent | 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. | For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. | 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 | High | Medium | Low |
Timedifferent | 2-6 h | 2-4 h | 30-60 min |
Participantsdifferent | 3-10 | 2-6 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | Family Tree Diagram, Pattern Notes, Systemic Measures | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tags1 shared | RiskQualityOperationsRoot cause | Root causePatternsIncidentSystemic | Root causeQualityOperations |
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