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| Criterion |  Operations MORT Analysis |  Operations Fishbone Diagram |  Operations Family Tree Analysis |  Operations Root Cause Tree Analysis |
|---|---|---|---|---|
Purposedifferent | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | 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. | 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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | High | Low | Medium | Medium |
Timedifferent | Mehrere Tage bis Wochen | 30-60 min | 2-4 h | 1-3 h |
Participantsdifferent | 2-6 | 2-8 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Fishbone Diagram, Cause Categories, Investigation Backlog | Family Tree Diagram, Pattern Notes, Systemic Measures | Cause Tree, Evidence Notes, Countermeasures |
Tags1 shared | Root causeSafetySystemicIncident | Root causeQualityOperations | Root causePatternsIncidentSystemic | Root causeTreeIncidentQuality |