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| Criterion |  Operations After-Action Review |  Knowledge Modeling Feynman Technique |  Operations Failure Mode and Effects Analysis |  Operations Fault Tree 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. | The Feynman Technique checks understanding by explaining a topic so that it stays easy for others to understand. It makes knowledge gaps visible before they become costly in everyday work. | 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 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 | Low | High | High |
Timedifferent | 20-45 min | 20-60 min | 2-6 h | 2-6 h |
Participantsdifferent | 3-12 | 1 | 3-10 | 3-8 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | Plain-language Explanation, Knowledge Gaps, Study Notes | FMEA Table, Risk Priority, Mitigation Actions | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | LearningOperationsImprovement | LearningKnowledgeUnderstanding | RiskQualityOperationsRoot cause | RiskRoot causeSafety |