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| Criterion |  Agile Ideal Days |  Decision Making PERT Estimation |  Product Strategy ICE Scoring |
|---|---|---|---|
Purposedifferent | 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. | 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. | When ideas need sorting quickly, it condenses impact, confidence, and effort into one compact score. It connects customer value, product logic, and decision priorities. The result is captured as an ICE table and top-ideas list. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 15-60 min | 15-45 min | 30-60 min |
Participantsdifferent | 2-9 | 1-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Ideal Day Estimates, Assumption Notes, Capacity Caveats | PERT Estimate, Expected Value, Risk Notes | ICE Table, Top Idea List |
Tagsno overlap | EstimationEffortAgile | EstimationUncertaintyRisk | PrioritizationScoringGrowthDecision |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
