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| Criterion |  Operations Scatter Diagram |  Operations Failure Mode and Effects Analysis |  Operations MORT Analysis |  Operations Fault Tree 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 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 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 critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. |
Complexitydifferent | Low | High | High | High |
Timedifferent | 30-90 min | 2-6 h | Mehrere Tage bis Wochen | 2-6 h |
Participantsdifferent | 1-4 | 3-10 | 2-6 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Scatter Plot, Korrelationsnotiz, Hypothesenliste | FMEA Table, Risk Priority, Mitigation Actions | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tags1 shared | Root causeQualityVisualization | RiskQualityOperationsRoot cause | Root causeSafetySystemicIncident | RiskRoot causeSafety |