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| Criterion |  Knowledge Modeling IBIS |  Decision Making Constraint Analysis |  Domain Modeling EventStorming |
|---|---|---|---|
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 an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-3 h | 30-90 min | 2-8 h |
Participantsdifferent | 2-8 | 2-8 | 5-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Issue Map, Positions, Argument Notes | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Event Timeline, Ubiquitous Language, Boundaries, Open Questions |
Tagsno overlap | RationaleKnowledgeDecision | ConstraintsDecisionPlanningOptions | Domain-Driven DesignEventsDiscoveryWorkshop |
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