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| Criterion |  Product Strategy ICE Scoring |  Agile Affinity Estimation |  Agile Ideal Days |
|---|---|---|---|
Purposedifferent | 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. | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | 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 | Medium | Low |
Timedifferent | 30-60 min | 30-90 min | 15-60 min |
Participantsdifferent | 2-8 | 3-12 | 2-9 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | ICE Table, Top Idea List | Affinity Size Map, Grouped Estimates, Unclear Items | Ideal Day Estimates, Assumption Notes, Capacity Caveats |
Tagsno overlap | PrioritizationScoringGrowthDecision | EstimationBacklogRelative sizing | EstimationEffortAgile |
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