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| Criterion |  Knowledge Modeling IBIS |  Decision Making Constraint Analysis |  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. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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 | Low | Medium |
Timedifferent | 1-3 h | 30-90 min | 20–45 min | 30-90 min |
Participantsdifferent | 2-8 | 2-8 | Small cross-functional group | 1-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Risk list, Mitigation plan, Assumption log | Decision Tree, Option Map, Assumption List |
Tags1 shared | RationaleKnowledgeDecision | ConstraintsDecisionPlanningOptions | RiskDecisionFailurePlanning | DecisionTreeOptions |