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| Criterion |  Operations Waste Analysis |  Facilitation Dot Estimation |  Decision Making PERT Estimation |  Delivery Value Stream Mapping |
|---|---|---|---|---|
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. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | 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 | Medium |
Timedifferent | 45-120 min | 5-20 min | 15-45 min | 1-3 h |
Participantsdifferent | 2-8 | 3-20 | 1-8 | 4-10 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Waste Map, Prioritized Waste, Improvement Backlog | Effort Heatmap, Risk Signals, Discussion Targets | PERT Estimate, Expected Value, Risk Notes | Current-state map, Future-state map, Bottleneck list |
Tagsno overlap | WasteLeanProcess improvement | EstimationEffortRisk | EstimationUncertaintyRisk | LeanFlowWasteDelivery |