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| Criterion |  Knowledge Modeling IBIS |  Facilitation Consensus Workshop |  UX Research Affinity Diagramming |  Facilitation 3-Circle Venn Diagram |
|---|---|---|---|---|
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 a group needs a solid decision without outvoting individual factions, a Consensus Workshop creates a negotiable common ground. It makes agreement, reservations, and open tensions discussable at the same time. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | When three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 1-3 h | 1-3 h | 45–90 min | 15-45 min |
Participantsdifferent | 2-8 | 5-30 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Consensus Clusters, Theme Titles, Priority Areas | Theme clusters, Insight statements, Opportunity areas | Venn Diagram, Overlap Notes, Differentiators |
Tagsno overlap | RationaleKnowledgeDecision | FacilitationConsensusWorkshopAlignment | SynthesisQualitativeRoot cause | ComparisonFacilitationAlignment |