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| Criterion | ![]() Operations A3 Problem Solving | ![]() Agile Mad Sad Glad | ![]() Agile 4Ls Retrospective | ![]() Operations After-Action Review |
|---|---|---|---|---|
Purposedifferent | 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 team's or workshop's mood needs to become readable, it structures emotional signals with little setup. It makes strain, relief, and sources of energy tangible. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. | 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 45-90 min | 30-60 min | 45–75 min | 20-45 min |
Participantsdifferent | 2-5 | 3-10 | Team members involved | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Emotion Board, Themes, Action Items | 4Ls Board, Learning Themes, Improvement Actions | Lessons learned, Action items, Event summary |
Tagsno overlap | LeanProblem solvingCoachingOperations | RetrospectiveTeamReflection | RetrospectiveLearningReflectionTeam | LearningOperationsImprovement |



