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| Criterion |  Operations Waste Analysis |  Decision Making Three-Point 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. | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption Notes. | 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 | Medium | Medium | Medium |
Timedifferent | 45-120 min | 10-30 min je Item | 15-45 min | 1-3 h |
Participantsdifferent | 2-8 | 1-8 | 1-8 | 4-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Waste Map, Prioritized Waste, Improvement Backlog | Three-Point Estimate, Risk Range, Assumption Notes | PERT Estimate, Expected Value, Risk Notes | Current-state map, Future-state map, Bottleneck list |
Tagsno overlap | WasteLeanProcess improvement | EstimationUncertaintyForecasting | EstimationUncertaintyRisk | LeanFlowWasteDelivery |