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| Criterion |  Knowledge Modeling IBIS |  Decision Making DACI |  Decision Making Trade-off Analysis |
|---|---|---|---|
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 cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | With limited resources, quality, speed, cost, and risk almost always compete with each other. Trade-off Analysis makes these tensions explicit and prevents decisions from producing hidden side effects. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-3 h | 30-60 min | 45-120 min |
Participantsdifferent | 2-8 | 2-10 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | DACI Matrix, Decision Owner, Decision Log | Trade-off Matrix, Criteria List, Decision Rationale, Accepted Downsides |
Tags1 shared | RationaleKnowledgeDecision | DecisionRolesGovernanceAlignment | TradeoffsDecisionCriteriaOptions |
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