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| Criterion |  Agile Affinity Estimation |  Engineering Kanban |  Decision Making PERT Estimation |
|---|---|---|---|
Purposedifferent | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | 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. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-90 min | Ongoing | 15-45 min |
Participantsdifferent | 3-12 | 2-12 | 1-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Kanban board, WIP policies, Flow metrics | PERT Estimate, Expected Value, Risk Notes |
Tagsno overlap | EstimationBacklogRelative sizing | FlowVisual managementDelivery | EstimationUncertaintyRisk |
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