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| Criterion |  Decision Making Three-Point Estimation |  Decision Making PERT Estimation |  Engineering Kanban |
|---|---|---|---|
Purposedifferent | 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 work sits in too many parallel streams, throughput suffers and no one sees the bottlenecks. Kanban makes the flow of work visible and limits overload so a system becomes calmer and more predictable. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 10-30 min je Item | 15-45 min | Ongoing |
Participantsdifferent | 1-8 | 1-8 | 2-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | PERT Estimate, Expected Value, Risk Notes | Kanban board, WIP policies, Flow metrics |
Tagsno overlap | EstimationUncertaintyForecasting | EstimationUncertaintyRisk | FlowVisual managementDelivery |
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