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| Criterion |  Operations After-Action Review |  Operations Fishbone Diagram |  Operations Getting Things Done |  Operations 8D Problem Solving |
|---|---|---|---|---|
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. | With many open commitments and ideas in daily life, a reliable external storage system emerges. The method relieves the mind so priority and context don't have to compete in memory. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Low | Low | Medium | High |
Timedifferent | 20-45 min | 30-60 min | 1-2 h Setup, laufend | 1-6 Wochen |
Participantsdifferent | 3-12 | 2-8 | 1 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | Fishbone Diagram, Cause Categories, Investigation Backlog | Action Lists, Project List, Review Routine | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | LearningOperationsImprovement | Root causeQualityOperations | ProductivityPlanningTasksExecution | QualityProblem solvingRoot cause |