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| Criterion |  Operations ABC Analysis |  Operations Kaizen Event |  Operations After-Action Review |  Operations Gemba Walk |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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 there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 30-60 min | 0.5-5 Tage | 20-45 min | 30-120 min |
Participantsdifferent | 1-5 | 4-10 | 3-12 | 2-6 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop |
Outputdifferent | ABC Classification, Focus Rules, Control List | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Lessons learned, Action items, Event summary | Observation Notes, Improvement Ideas |
Tags1 shared | PrioritizationOperationsPortfolio | LeanContinuous improvementOperations | LearningOperationsImprovement | LeanObservationProcessOperations |