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| Criterion |  Product Strategy ICE Scoring |  Systems Thinking Future Reality Tree |  Systems Thinking Evaporating Cloud |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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. | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Low | High | Medium | Low |
Timedifferent | 30-60 min | 2-4 h | 60-120 min | 45-90 min |
Participantsdifferent | 2-8 | 3-8 | 2-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | ICE Table, Top Idea List | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | PrioritizationScoringGrowthDecision | Theory of ConstraintsSystems thinkingChange | Theory of ConstraintsAssumptionsSystems thinking | AssumptionsRiskDecisionDiscovery |