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| Criterion |  Operations A3 Problem Solving |  Agile Sprint Retrospective |  Operations Root Cause Analysis |  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 sprint is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together. | 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. | 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 | Medium | Low |
Timedifferent | 45-90 min | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 1-4 h | 20-45 min |
Participantsdifferent | 2-5 | Scrum Team | 3-8 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Improvement actions, Team agreements | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Lessons learned, Action items, Event summary |
Tagsno overlap | LeanProblem solvingCoachingOperations | RetrospectiveImprovementLearning | Root causeProblem solvingQualityIncident | LearningOperationsImprovement |