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| Criterion |  Operations Fault Tree Analysis |  Decision Making Risk Matrix |  Operations MORT Analysis |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | 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. | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | High | Low | High | Low |
Timedifferent | 2-6 h | 30-60 min | Mehrere Tage bis Wochen | 45-90 min |
Participantsdifferent | 3-8 | 3-10 | 2-6 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Risk Matrix, Top Risk List | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | RiskRoot causeSafety | RiskDecisionPrioritizationAssessment | Root causeSafetySystemicIncident | AssumptionsRiskDecisionDiscovery |