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| Criterion |  Operations Gemba Walk |  Agile 4Ls Retrospective |  Operations A3 Problem Solving |
|---|---|---|---|
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 a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 30-120 min | 45–75 min | 45-90 min |
Participantsdifferent | 2-6 | Team members involved | 2-5 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | 4Ls Board, Learning Themes, Improvement Actions | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | LeanObservationProcessOperations | RetrospectiveLearningReflectionTeam | LeanProblem solvingCoachingOperations |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
