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| Criterion |  Operations Causal Factor Analysis |  Operations Fishbone Diagram |  Operations MORT Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | 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 safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | 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. |
Complexitydifferent | High | Low | High | High |
Timedifferent | 2-6 h | 30-60 min | Mehrere Tage bis Wochen | 2-6 h |
Participantsdifferent | 3-10 | 2-8 | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Fishbone Diagram, Cause Categories, Investigation Backlog | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | FMEA Table, Risk Priority, Mitigation Actions |
Tags1 shared | CausalityIncidentRoot causeTimeline | Root causeQualityOperations | Root causeSafetySystemicIncident | RiskQualityOperationsRoot cause |