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| Criterion |  Decision Making Three-Point Estimation |  Knowledge Modeling IBIS |  Facilitation Dot Estimation |  Decision Making PERT Estimation |
|---|---|---|---|---|
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. | When size or effort can only be estimated roughly, Dot Estimation condenses the group's experience into a quick range. It turns individual contributions into a visible selection. The result is captured as an Effort Heatmap, Risk Signals, and Discussion Targets. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 10-30 min je Item | 1-3 h | 5-20 min | 15-45 min |
Participantsdifferent | 1-8 | 2-8 | 3-20 | 1-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | Issue Map, Positions, Argument Notes | Effort Heatmap, Risk Signals, Discussion Targets | PERT Estimate, Expected Value, Risk Notes |
Tagsno overlap | EstimationUncertaintyForecasting | RationaleKnowledgeDecision | EstimationEffortRisk | EstimationUncertaintyRisk |