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| Criterion |  Product Strategy ICE Scoring |  Operations Ivy Lee Method |  Product Discovery Assumption Mapping |
|---|---|---|---|
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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 30-60 min | 5-10 min daily | 45-60 min |
Participantsdifferent | 2-8 | 1 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | ICE Table, Top Idea List | Daily Priority List, Completion Notes | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | PrioritizationScoringGrowthDecision | PrioritizationProductivityExecution | AssumptionsRiskExperimentsValidation |
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