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| Criterion |  Operations Kaizen Event |  Operations A3 Problem Solving |  Operations After-Action Review |  Operations Learning Review |
|---|---|---|---|---|
Purposedifferent | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | 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. | 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. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 0.5-5 Tage | 45-90 min | 20-45 min | 1-3 h |
Participantsdifferent | 4-10 | 2-5 | 3-12 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | A3 Report, Action Plan, Root Cause Analysis | Lessons learned, Action items, Event summary | Learning Review Notes, System Factors, Improvement Actions |
Tags1 shared | LeanContinuous improvementOperations | LeanProblem solvingCoachingOperations | LearningOperationsImprovement | LearningRetrospectiveIncidentOperations |