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| Criterion |  Operations A3 Problem Solving |  Operations Gemba Walk |  Operations Learning Review |
|---|---|---|---|
Purposedifferent | 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. | 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 a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 45-90 min | 30-120 min | 1-3 h |
Participantsdifferent | 2-5 | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Observation Notes, Improvement Ideas | Learning Review Notes, System Factors, Improvement Actions |
Tags1 shared | LeanProblem solvingCoachingOperations | LeanObservationProcessOperations | LearningRetrospectiveIncidentOperations |
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