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| Criterion |  Operations After-Action Review |  Operations Fault Tree Analysis |  Operations MORT Analysis |
|---|---|---|---|
Purposedifferent | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | 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. |
Complexitydifferent | Low | High | High |
Timedifferent | 20-45 min | 2-6 h | Mehrere Tage bis Wochen |
Participantsdifferent | 3-12 | 3-8 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | LearningOperationsImprovement | RiskRoot causeSafety | Root causeSafetySystemicIncident |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
