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| Criterion |  UX Research User Interviews |  Architecture Architecture Decision Record |  Facilitation 3-Circle Venn Diagram |
|---|---|---|---|
Purposedifferent | 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. | 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 three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. |
Complexitysame | Low | Low | Low |
Timedifferent | 30–60 min per interview | 15-45 min | 15-45 min |
Participantsdifferent | 1 participant per interview | 1-3 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | ADR File, Decision Log, Rationale | Venn Diagram, Overlap Notes, Differentiators |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ArchitectureRationaleDocumentationGovernance | ComparisonFacilitationAlignment |
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