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| Criterion |  Decision Making DACI |  Domain Modeling EventStorming |  Decision Making Assumption Surfacing |
|---|---|---|---|
Purposedifferent | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | 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. | 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. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 30-60 min | 2-8 h | 45-90 min |
Participantsdifferent | 2-10 | 5-12 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | DACI Matrix, Decision Owner, Decision Log | Event Timeline, Ubiquitous Language, Boundaries, Open Questions | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | DecisionRolesGovernanceAlignment | Domain-Driven DesignEventsDiscoveryWorkshop | AssumptionsRiskDecisionDiscovery |
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