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| Criterion |  Decision Making Three-Point Estimation |  Knowledge Modeling IBIS |  Decision Making PERT Estimation |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption Notes. | 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. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 10-30 min je Item | 1-3 h | 15-45 min | 45-90 min |
Participantsdifferent | 1-8 | 2-8 | 1-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | Issue Map, Positions, Argument Notes | PERT Estimate, Expected Value, Risk Notes | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | EstimationUncertaintyForecasting | RationaleKnowledgeDecision | EstimationUncertaintyRisk | AssumptionsRiskDecisionDiscovery |