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| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  DevOps Incident Timeline Analysis |  Product Discovery Fake Door Test |
|---|---|---|---|
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. | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. | 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 | 2–4 h review as a planning range; preparation and evaluation additional | 60-180 min | 1-5 Tage |
Participantsdifferent | Designers, developers as users, and facilitation | 3-10 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | IncidentTimelineSite Reliability Engineering | ValidationExperimentsDemandDiscovery |
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