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| Criterion |  Facilitation Dot Estimation |  Operations Gemba Walk |  Delivery Value Stream Mapping |
|---|---|---|---|
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 delivery work dissolves into wait times, handoffs, and hidden effort, Value Stream Mapping makes the actual flow visible. The method exposes bottlenecks, idle time, and feedback loops so lead time and improvement levers become tangible. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 5-20 min | 30-120 min | 1-3 h |
Participantsdifferent | 3-20 | 2-6 | 4-10 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Effort Heatmap, Risk Signals, Discussion Targets | Observation Notes, Improvement Ideas | Current-state map, Future-state map, Bottleneck list |
Tagsno overlap | EstimationEffortRisk | LeanObservationProcessOperations | LeanFlowWasteDelivery |
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