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| Criterion |  Operations After-Action Review |  Operations Ivy Lee Method |  Operations A3 Problem Solving |  Operations ABC 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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 20-45 min | 5-10 min daily | 45-90 min | 30-60 min |
Participantsdifferent | 3-12 | 1 | 2-5 | 1-5 |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Lessons learned, Action items, Event summary | Daily Priority List, Completion Notes | A3 Report, Action Plan, Root Cause Analysis | ABC Classification, Focus Rules, Control List |
Tagsno overlap | LearningOperationsImprovement | PrioritizationProductivityExecution | LeanProblem solvingCoachingOperations | PrioritizationOperationsPortfolio |