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| Criterion |  Operations Waste Analysis |  Facilitation Dot Estimation |  Operations Gemba Walk |
|---|---|---|---|
Purposedifferent | For a process that keeps people busy but creates little value, the method exposes waste. It directs attention to unnecessary movement, waiting times, rework, and overdelivery. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 45-120 min | 5-20 min | 30-120 min |
Participantsdifferent | 2-8 | 3-20 | 2-6 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Waste Map, Prioritized Waste, Improvement Backlog | Effort Heatmap, Risk Signals, Discussion Targets | Observation Notes, Improvement Ideas |
Tagsno overlap | WasteLeanProcess improvement | EstimationEffortRisk | LeanObservationProcessOperations |
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