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| Criterion |  Agile Affinity Estimation |  Agile Ideal Days |  Decision Making Wideband Delphi |  Agile Bucket System |
|---|---|---|---|---|
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 effort needs to be thought of as real working time, it offers a simple common denominator for comparison. It sorts work by value, risk, and delivery ability. The result is captured as Ideal Day Estimates, Assumption Notes, and Capacity Caveats. | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | 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. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 30-90 min | 15-60 min | 1-4 h or multiple rounds | 30-90 min |
Participantsdifferent | 3-12 | 2-9 | 4-12 Experten | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Estimate Range, Assumption Log, Expert Consensus Notes | Bucketed Backlog, Relative Estimates, Split Candidates |
Tags1 shared | EstimationBacklogRelative sizing | EstimationEffortAgile | EstimationExpertsForecasting | EstimationBacklogRelative sizing |