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| Criterion |  Operations Gemba Walk |  Knowledge Modeling Feynman Technique |  Operations Learning Review |  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. | The Feynman Technique checks understanding by explaining a topic so that it stays easy for others to understand. It makes knowledge gaps visible before they become costly in everyday work. | 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. | 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 | Medium |
Timedifferent | 30-120 min | 20-60 min | 1-3 h | 45-90 min |
Participantsdifferent | 2-6 | 1 | 3-10 | 2-5 |
Formatdifferent | Workshop | Async | Workshop | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Plain-language Explanation, Knowledge Gaps, Study Notes | Learning Review Notes, System Factors, Improvement Actions | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | LeanObservationProcessOperations | LearningKnowledgeUnderstanding | LearningRetrospectiveIncidentOperations | LeanProblem solvingCoachingOperations |