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| Criterion |  Operations Change Analysis |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Smoke Test |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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 only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | 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 | Medium | Low | Medium |
Timedifferent | 45-120 min | 2–4 h review as a planning range; preparation and evaluation additional | 1-5 Tage | 1-5 Tage |
Participantsdifferent | 2-6 | Designers, developers as users, and facilitation | Nutzertraffic | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async | Async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Interest Metrics, Conversion Signal, Learning Note | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | ArchitectureEngineeringFeedbackValidationTasks | ValidationExperimentsDemandGrowth | ValidationExperimentsDemandDiscovery |