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| Criterion |  Operations Scatter Diagram |  Operations Fault Tree Analysis |  Operations MORT Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | When the question is whether two measures are related, the method makes patterns in the data picture visible. It separates felt correlations from relationships that actually show up in the data. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | 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 | Low | High | High | High |
Timedifferent | 30-90 min | 2-6 h | Mehrere Tage bis Wochen | 2-6 h |
Participantsdifferent | 1-4 | 3-8 | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Scatter Plot, Korrelationsnotiz, Hypothesenliste | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | FMEA Table, Risk Priority, Mitigation Actions |
Tags1 shared | Root causeQualityVisualization | RiskRoot causeSafety | Root causeSafetySystemicIncident | RiskQualityOperationsRoot cause |