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| Criterion |  Agile Affinity Estimation |  Agile Bucket System |  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 a large batch of work needs a fast, rough estimate, it sorts items into predefined size buckets. It sorts work by value, risk, and delivery ability. The result is captured as a Bucketed Backlog, Relative Estimates, and Split Candidates. | 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 | 30-90 min | 15-45 min |
Participantsdifferent | 3-12 | 3-12 | 1-8 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Bucketed Backlog, Relative Estimates, Split Candidates | PERT Estimate, Expected Value, Risk Notes |
Tags1 shared | EstimationBacklogRelative sizing | EstimationBacklogRelative sizing | EstimationUncertaintyRisk |
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