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| Criterion |  Operations Gemba Walk |  Operations After-Action Review |  Knowledge Modeling Domain Storytelling |  Operations Kaizen Event |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | Domain Storytelling translates domain knowledge into a shared narrative of actors, objects, and workflows. It is especially useful when language, rules, and process understanding must be tightly connected. | 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. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 30-120 min | 20-45 min | 1-2 h | 0.5-5 Tage |
Participantsdifferent | 2-6 | 3-12 | 2-8 | 4-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Lessons learned, Action items, Event summary | Domain Story, Glossary Notes, Process Narrative | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update |
Tagsno overlap | LeanObservationProcessOperations | LearningOperationsImprovement | KnowledgeDomain-Driven DesignProcess | LeanContinuous improvementOperations |