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| Criterion |  Domain Modeling EventStorming |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Assumption Surfacing |  Architecture Risk Storming |
|---|---|---|---|---|
Purposedifferent | 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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | 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. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 2-8 h | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min | 60-90 min |
Participantsdifferent | 5-12 | Evaluation team, architects, and relevant stakeholders | 2-8 | 4-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Event Timeline, Ubiquitous Language, Boundaries, Open Questions | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Assumption List, Critical Assumptions, Learning Plan | Annotated Diagram, Prioritized Risk List, Action Backlog |
Tagsno overlap | Domain-Driven DesignEventsDiscoveryWorkshop | ArchitectureQualityRiskTradeoffsStakeholders | AssumptionsRiskDecisionDiscovery | RiskArchitectureWorkshopValidation |