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| Criterion |  Knowledge Modeling IBIS |  Architecture Request for Comments |  Growth A/B Testing |  Architecture ARID (Active Reviews for Intermediate Designs) |
|---|---|---|---|---|
Purposedifferent | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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. | 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. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 1-3 h | 1-3 Wochen vom Draft bis zur Entscheidung | 1-4 Wochen | 2–4 h review as a planning range; preparation and evaluation additional |
Participantsdifferent | 2-8 | 3-20 Reviewer | 1-6 | Designers, developers as users, and facilitation |
Formatdifferent | Workshop + async | Async | Async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Experiment results, Decision log, Learning summary | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions |
Tagsno overlap | RationaleKnowledgeDecision | ArchitectureDecisionAsyncGovernance | ExperimentsGrowthAnalyticsValidation | ArchitectureEngineeringFeedbackValidationTasks |