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| Criterion |  Knowledge Modeling IBIS |  Decision Making Pre-Mortem |  Decision Making Assumption Surfacing |  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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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. | 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 | Low | Low |
Timedifferent | 1-3 h | 20–45 min | 45-90 min | 1-2 h |
Participantsdifferent | 2-8 | Small cross-functional group | 2-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Risk list, Mitigation plan, Assumption log | Assumption List, Critical Assumptions, Learning Plan | DIBB document, Belief list, Bet list, Learning report |
Tags1 shared | RationaleKnowledgeDecision | RiskDecisionFailurePlanning | AssumptionsRiskDecisionDiscovery | StrategyDecisionAssumptionsHypothesis |