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| Criterion |  Product Discovery Solution Interview |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-60 min je Interview | 2–4 h review as a planning range; preparation and evaluation additional | 1-5 Tage |
Participantsdifferent | 5-10 Interviews | Designers, developers as users, and facilitation | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Click Data, Interest Signal, Learning Decision |
Tags1 shared | ValidationInterviewsPrototype | ArchitectureEngineeringFeedbackValidationTasks | ValidationExperimentsDemandDiscovery |
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