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| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Fake Door Test |  Product Discovery Opportunity Solution Tree |
|---|---|---|---|
Purposedifferent | 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. | When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 1-5 Tage | 1-2 h Setup, laufend |
Participantsdifferent | Designers, developers as users, and facilitation | Nutzertraffic | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Click Data, Interest Signal, Learning Decision | Opportunity Solution Tree, Experiment Backlog, Learning Log |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | ValidationExperimentsDemandDiscovery | DiscoveryOutcomesExperimentsOpportunity |
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