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| Criterion |  Growth A/B Testing |  Architecture ARID (Active Reviews for Intermediate Designs) |  Decision Making RAPID |  Architecture Request for Comments |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | In complex management decisions, clarity is often missing about who recommends, who agrees, and who makes the decision. RAPID creates this assignment and stabilizes decisions across several levels. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | 1-4 Wochen | 2–4 h review as a planning range; preparation and evaluation additional | 45-90 min | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 1-6 | Designers, developers as users, and facilitation | 3-12 | 3-20 Reviewer |
Formatdifferent | Async | Workshop + async | Workshop + async | Async |
Outputdifferent | Experiment results, Decision log, Learning summary | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | RAPID Role Map, Recommendation, Decision Log | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | ExperimentsGrowthAnalyticsValidation | ArchitectureEngineeringFeedbackValidationTasks | DecisionRolesGovernance | ArchitectureDecisionAsyncGovernance |