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| Criterion |  Knowledge Modeling IBIS |  Decision Making Pre-Mortem |  Decision Making Decision Tree |
|---|---|---|---|
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. | For decisions with follow-on paths and dependencies, a linear comparison is often not enough. A Decision Tree shows how options branch under conditions and which consequences hang on each branch. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-3 h | 20–45 min | 30-90 min |
Participantsdifferent | 2-8 | Small cross-functional group | 1-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Risk list, Mitigation plan, Assumption log | Decision Tree, Option Map, Assumption List |
Tags1 shared | RationaleKnowledgeDecision | RiskDecisionFailurePlanning | DecisionTreeOptions |
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