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| Criterion |  Facilitation Dot Estimation |  Operations Gemba Walk |  Operations Fishbone Diagram |
|---|---|---|---|
Purposedifferent | When size or effort can only be estimated roughly, Dot Estimation condenses the group's experience into a quick range. It turns individual contributions into a visible selection. The result is captured as an Effort Heatmap, Risk Signals, and Discussion Targets. | 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 problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitysame | Low | Low | Low |
Timedifferent | 5-20 min | 30-120 min | 30-60 min |
Participantsdifferent | 3-20 | 2-6 | 2-8 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Effort Heatmap, Risk Signals, Discussion Targets | Observation Notes, Improvement Ideas | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | EstimationEffortRisk | LeanObservationProcessOperations | Root causeQualityOperations |
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