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| Criterion |  Agile Scrum |  Decision Making PERT Estimation |  Decision Making Three-Point Estimation |
|---|---|---|---|
Purposedifferent | When a team needs to work in a fixed delivery rhythm, it stabilizes cadence, responsibility, and feedback loops. It makes collaboration reliable across sprint boundaries. | 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. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-4 Wochen je Sprint, laufend | 15-45 min | 10-30 min je Item |
Participantsdifferent | 3-10 (Scrum Team) | 1-8 | 1-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Product Backlog, Sprint Backlog, Increment, Sprint Goal | PERT Estimate, Expected Value, Risk Notes | Three-Point Estimate, Risk Range, Assumption Notes |
Tagsno overlap | AgileIterationCadence | EstimationUncertaintyRisk | EstimationUncertaintyForecasting |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
