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| Criterion |  Operations A3 Problem Solving |  Operations Gemba Walk |  Systems Thinking Behavior Over Time Graph |
|---|---|---|---|
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. | A Behavior Over Time Graph shows how a metric or observation develops over time. The method makes trends, breaks, and recurring patterns visible that get lost in snapshots. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 45-90 min | 30-120 min | 20-45 min |
Participantsdifferent | 2-5 | 2-6 | 1-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Observation Notes, Improvement Ideas | Behavior Over Time Graph, Trend Hypotheses, Key Events |
Tagsno overlap | LeanProblem solvingCoachingOperations | LeanObservationProcessOperations | Systems thinkingPatternsDynamics |
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