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| Criterion |  UX Research Usability Testing |  UX Research Card Sorting |  Architecture Architecture Decision Record |
|---|---|---|---|
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. | When content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. | 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. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 1-2 h je Session | 20-45 min | 15-45 min |
Participantsdifferent | Based on research question | Based on research question | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Content groups, Label set, IA hypotheses | ADR File, Decision Log, Rationale |
Tagsno overlap | ValidationUXPrototype | Information architectureNavigationStructure | ArchitectureRationaleDocumentationGovernance |
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