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| Criterion |  Knowledge Modeling IBIS |  Product Strategy ICE Scoring |  Decision Making Assumption Surfacing |  Delivery Cost of Delay |
|---|---|---|---|---|
Purposedifferent | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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. | 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. | Helps clarify scope, order, and delivery flow in concrete terms. It makes work, constraints, and sequence manageable. The result is captured as a Cost of Delay table and prioritization sequence. |
Complexitydifferent | Medium | Low | Low | High |
Timedifferent | 1-3 h | 30-60 min | 45-90 min | 90-180 min |
Participantsdifferent | 2-8 | 2-8 | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Issue Map, Positions, Argument Notes | ICE Table, Top Idea List | Assumption List, Critical Assumptions, Learning Plan | CoD Table, Prioritization Sequence |
Tags1 shared | RationaleKnowledgeDecision | PrioritizationScoringGrowthDecision | AssumptionsRiskDecisionDiscovery | PrioritizationDeliveryEconomicsDecision |