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| Criterion |  Agile Bucket System |  Decision Making Three-Point Estimation |  Agile Planning Poker |  Decision Making PERT Estimation |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 30-90 min | 10-30 min je Item | 2-5 min je Item | 15-45 min |
Participantsdifferent | 3-12 | 1-8 | 3-9 | 1-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Bucketed Backlog, Relative Estimates, Split Candidates | Three-Point Estimate, Risk Range, Assumption Notes | Relative Estimates, Assumption Notes, Split Candidates | PERT Estimate, Expected Value, Risk Notes |
Tags1 shared | EstimationBacklogRelative sizing | EstimationUncertaintyForecasting | EstimationAgileRelative sizingTeam | EstimationUncertaintyRisk |