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| Criterion |  Operations DMAIC |  Operations Gemba Walk |  Operations After-Action Review |
|---|---|---|---|
Purposedifferent | For a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. | 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. |
Complexitydifferent | High | Low | Low |
Timedifferent | 2-12 Wochen | 30-120 min | 20-45 min |
Participantsdifferent | 3-10 | 2-6 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Observation Notes, Improvement Ideas | Lessons learned, Action items, Event summary |
Tagsno overlap | Continuous improvementQualityProcess improvement | LeanObservationProcessOperations | LearningOperationsImprovement |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
