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| Criterion |  Operations After-Action Review |  Knowledge Modeling Teach-back |  Operations Gemba Walk |
|---|---|---|---|
Purposedifferent | 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. | Teach-back checks whether an explanation actually got through to the other person. The method makes misunderstandings visible early and strengthens shared understanding in advisory and learning situations. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 20-45 min | 5-20 min | 30-120 min |
Participantsdifferent | 3-12 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Lessons learned, Action items, Event summary | Understanding Check, Clarification Notes, Learning Gaps | Observation Notes, Improvement Ideas |
Tagsno overlap | LearningOperationsImprovement | LearningUnderstandingCommunication | LeanObservationProcessOperations |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
