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| Criterion |  Operations Gemba Walk |  Decision Making Decision Matrix |  Operations After-Action Review |
|---|---|---|---|
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. | When several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | 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 | Low | Medium | Low |
Timedifferent | 30-120 min | 45-90 min | 20-45 min |
Participantsdifferent | 2-6 | 2-8 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Decision Matrix, Scoring Rationale, Selected Option | Lessons learned, Action items, Event summary |
Tagsno overlap | LeanObservationProcessOperations | DecisionCriteriaScoringTradeoffs | LearningOperationsImprovement |
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