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| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Growth A/B Testing |  Agile 4Ls Retrospective |  Product Discovery Smoke 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. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. | 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. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 1-4 Wochen | 45–75 min | 1-5 Tage |
Participantsdifferent | Designers, developers as users, and facilitation | 1-6 | Team members involved | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop | Async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Experiment results, Decision log, Learning summary | 4Ls Board, Learning Themes, Improvement Actions | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | ExperimentsGrowthAnalyticsValidation | RetrospectiveLearningReflectionTeam | ValidationExperimentsDemandGrowth |