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| Criterion |  Knowledge Modeling IBIS |  Decision Making Assumption Surfacing |  Delivery Cost of Delay |  Product Strategy DIBB |
|---|---|---|---|---|
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. | 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. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 1-3 h | 45-90 min | 90-180 min | 1-2 h |
Participantsdifferent | 2-8 | 2-8 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Assumption List, Critical Assumptions, Learning Plan | CoD Table, Prioritization Sequence | DIBB document, Belief list, Bet list, Learning report |
Tags1 shared | RationaleKnowledgeDecision | AssumptionsRiskDecisionDiscovery | PrioritizationDeliveryEconomicsDecision | StrategyDecisionAssumptionsHypothesis |