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| Criterion |  Knowledge Modeling IBIS |  Decision Making Risk Matrix |  Product Strategy ICE Scoring |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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 a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-3 h | 30-60 min | 30-60 min | 45-90 min |
Participantsdifferent | 2-8 | 3-10 | 2-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Risk Matrix, Top Risk List | ICE Table, Top Idea List | Assumption List, Critical Assumptions, Learning Plan |
Tags1 shared | RationaleKnowledgeDecision | RiskDecisionPrioritizationAssessment | PrioritizationScoringGrowthDecision | AssumptionsRiskDecisionDiscovery |