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| Criterion |  Architecture Architecture Decision Record |  Product Discovery Opportunity Solution Tree |  Domain Modeling EventStorming |
|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. | 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 | Low | Medium | Medium |
Timedifferent | 15-45 min | 1-2 h Setup, laufend | 2-8 h |
Participantsdifferent | 1-3 | 2-6 | 5-12 |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Opportunity Solution Tree, Experiment Backlog, Learning Log | Event Timeline, Ubiquitous Language, Boundaries, Open Questions |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | DiscoveryOutcomesExperimentsOpportunity | Domain-Driven DesignEventsDiscoveryWorkshop |
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