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| Criterion |  Architecture Architecture Decision Record |  UX Research User Interviews |  Knowledge Modeling Event Modeling |
|---|---|---|---|
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 teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | 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. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 15-45 min | 30–60 min per interview | 2-6 h |
Participantsdifferent | 1-3 | 1 participant per interview | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Interview Notes, Themes, Insight Summary | Event Model, UI Flow, Commands, Read Models |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | QualitativeResearchCustomerDiscovery | EventsBlueprintDomain-Driven DesignBehavior |
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