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| Criterion |  Knowledge Modeling IBIS |  Facilitation Consensus Workshop |  Domain Modeling EventStorming |  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 a domain consists of many events, rules, and states, it creates a shared modeling space for the team. It bundles language, flows, and boundaries before domain knowledge fragments into siloed views. | 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 | Medium | Low |
Timedifferent | 1-3 h | 1-3 h | 2-8 h | 15-45 min |
Participantsdifferent | 2-8 | 5-30 | 5-12 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Consensus Clusters, Theme Titles, Priority Areas | Event Timeline, Ubiquitous Language, Boundaries, Open Questions | Venn Diagram, Overlap Notes, Differentiators |
Tagsno overlap | RationaleKnowledgeDecision | FacilitationConsensusWorkshopAlignment | Domain-Driven DesignEventsDiscoveryWorkshop | ComparisonFacilitationAlignment |