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| Criterion |  UX Research User Interviews |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Test Card |
|---|---|---|---|
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. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 30–60 min per interview | 2–4 h review as a planning range; preparation and evaluation additional | 20-35 min |
Participantsdifferent | 1 participant per interview | Designers, developers as users, and facilitation | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Test Card with a pre-set threshold |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ArchitectureEngineeringFeedbackValidationTasks | ExperimentsValidationDiscoveryHypothesis |
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