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| Criterion |  Agile T-Shirt Sizing |  Decision Making Delphi Method |  Agile Ideal Days |
|---|---|---|---|
Purposedifferent | When effort only needs to be classified roughly, it makes comparability more important than false precision. It helps sort work quickly into manageable sizes. | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | 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. |
Complexitydifferent | Low | High | Low |
Timedifferent | 15-45 min | 1-4 Wochen | 15-60 min |
Participantsdifferent | 2-12 | 6-30 Experten | 2-9 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Size Buckets, Rough Backlog Map, Split Candidates | Expert Forecast, Consensus Range, Assumption Notes | Ideal Day Estimates, Assumption Notes, Capacity Caveats |
Tagsno overlap | EstimationAgileRoadmap | ForecastingExpertsDecisionStrategy | EstimationEffortAgile |
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