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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Domain Modeling EventStorming |  Product Discovery Assumption Mapping |
|---|---|---|---|
Purposedifferent | 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. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 2-8 h | 45-60 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 5-12 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Event Timeline, Ubiquitous Language, Boundaries, Open Questions | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | Domain-Driven DesignEventsDiscoveryWorkshop | AssumptionsRiskExperimentsValidation |
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