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| Criterion |  Decision Making Three-Point Estimation |  Agile Planning Poker |  Agile Bucket System |  Agile Ideal Days |
|---|---|---|---|---|
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. | When estimates within the team diverge too much, it puts differing expectations on a common test bench. It separates rough complexity from unspoken assumptions. | 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. | 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 | Medium | Low | Medium | Low |
Timedifferent | 10-30 min je Item | 2-5 min je Item | 30-90 min | 15-60 min |
Participantsdifferent | 1-8 | 3-9 | 3-12 | 2-9 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | Relative Estimates, Assumption Notes, Split Candidates | Bucketed Backlog, Relative Estimates, Split Candidates | Ideal Day Estimates, Assumption Notes, Capacity Caveats |
Tags1 shared | EstimationUncertaintyForecasting | EstimationAgileRelative sizingTeam | EstimationBacklogRelative sizing | EstimationEffortAgile |