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Selected:Problem InterviewArchitecture Decision RecordARID (Active Reviews for Intermediate Designs)Fake Door Test
| Criterion | ![]() Product Discovery Problem Interview | ![]() Architecture Architecture Decision Record | ![]() Architecture ARID (Active Reviews for Intermediate Designs) | ![]() Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | 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. | 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. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 30-60 min je Interview | 15-45 min | 2–4 h review as a planning range; preparation and evaluation additional | 1-5 Tage |
Participantsdifferent | 5-12 Interviews | 1-3 | Designers, developers as users, and facilitation | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | ADR File, Decision Log, Rationale | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | DiscoveryInterviewsValidation | ArchitectureRationaleDocumentationGovernance | ArchitectureEngineeringFeedbackValidationTasks | ValidationExperimentsDemandDiscovery |



