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| Criterion |  Operations After-Action Review |  Agile Affinity Estimation |  Operations A3 Problem Solving |  Agile Bucket System |
|---|---|---|---|---|
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 many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | 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. | When a large batch of work needs a fast, rough estimate, it sorts items into predefined size buckets. It sorts work by value, risk, and delivery ability. The result is captured as a Bucketed Backlog, Relative Estimates, and Split Candidates. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 20-45 min | 30-90 min | 45-90 min | 30-90 min |
Participantsdifferent | 3-12 | 3-12 | 2-5 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Lessons learned, Action items, Event summary | Affinity Size Map, Grouped Estimates, Unclear Items | A3 Report, Action Plan, Root Cause Analysis | Bucketed Backlog, Relative Estimates, Split Candidates |
Tagsno overlap | LearningOperationsImprovement | EstimationBacklogRelative sizing | LeanProblem solvingCoachingOperations | EstimationBacklogRelative sizing |