View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Knowledge Modeling IBIS |  Decision Making Three-Point Estimation |  Decision Making PERT Estimation |
|---|---|---|---|
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. | 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. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-3 h | 10-30 min je Item | 15-45 min |
Participantsdifferent | 2-8 | 1-8 | 1-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Three-Point Estimate, Risk Range, Assumption Notes | PERT Estimate, Expected Value, Risk Notes |
Tagsno overlap | RationaleKnowledgeDecision | EstimationUncertaintyForecasting | EstimationUncertaintyRisk |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
