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| Criterion |  Operations After-Action Review |  Operations Fishbone Diagram |  Operations Root Cause 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. | 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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 20-45 min | 30-60 min | 1-4 h |
Participantsdifferent | 3-12 | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | Fishbone Diagram, Cause Categories, Investigation Backlog | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | LearningOperationsImprovement | Root causeQualityOperations | Root causeProblem solvingQualityIncident |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
