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| Criterion |  Operations After-Action Review |  Operations ALPEN Method |  Operations Fault Tree Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
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. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | 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 problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Low | Low | High | Low |
Timedifferent | 20-45 min | 10-20 min daily | 2-6 h | 30-60 min |
Participantsdifferent | 3-12 | 1 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Lessons learned, Action items, Event summary | Daily Plan, Time Estimates, Review Notes | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | LearningOperationsImprovement | PlanningTime managementProductivityOperations | RiskRoot causeSafety | Root causeQualityOperations |