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| Criterion |  Systems Thinking Behavior Over Time Graph |  Operations Gemba Walk |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | 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. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitysame | Low | Low | Low |
Timedifferent | 20-45 min | 30-120 min | 15-30 min |
Participantsdifferent | 1-10 | 2-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Behavior Over Time Graph, Trend Hypotheses, Key Events | Observation Notes, Improvement Ideas | Root cause notes, Countermeasures |
Tagsno overlap | Systems thinkingPatternsDynamics | LeanObservationProcessOperations | Root causeIncidentLeanProblem solving |
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