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| Criterion |  UX Research HEART Framework |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Fake Door Test |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | Helps clarify observations, needs, and patterns in concrete terms. It groups observations into patterns, questions, and decisions. The result is captured as a HEART-GSM table and dashboard. | 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. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 120 min initial, dann laufend | 2–4 h review as a planning range; preparation and evaluation additional | 1-5 Tage | 25-40 min |
Participantsdifferent | 3-6 | Designers, developers as users, and facilitation | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | HEART-GSM Table, Dashboard | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | MetricsUX researchMeasurementSatisfaction | ArchitectureEngineeringFeedbackValidationTasks | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |