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| Criterion |  UX Research Usability Testing |  Architecture Architecture Decision Record |  Product Discovery Assumption Mapping |
|---|---|---|---|
Purposedifferent | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-2 h je Session | 15-45 min | 45-60 min |
Participantsdifferent | Based on research question | 1-3 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | ADR File, Decision Log, Rationale | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ValidationUXPrototype | ArchitectureRationaleDocumentationGovernance | AssumptionsRiskExperimentsValidation |
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