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| Criterion |  Knowledge Modeling IBIS |  Knowledge Modeling Event Modeling |  Decision Making Assumption Surfacing |  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. | Event Modeling connects business workflows with commands, events, and views into one coherent mental model. It helps design behavior, UI, and technical slices from the same underlying logic. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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 | Medium | Low | Medium |
Timedifferent | 1-3 h | 2-6 h | 45-90 min | 2-8 h |
Participantsdifferent | 2-8 | 2-8 | 2-8 | 5-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Issue Map, Positions, Argument Notes | Event Model, UI Flow, Commands, Read Models | Assumption List, Critical Assumptions, Learning Plan | Event Timeline, Ubiquitous Language, Boundaries, Open Questions |
Tagsno overlap | RationaleKnowledgeDecision | EventsBlueprintDomain-Driven DesignBehavior | AssumptionsRiskDecisionDiscovery | Domain-Driven DesignEventsDiscoveryWorkshop |