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| Criterion |  Architecture Request for Comments |  Decision Making DACI |  Growth A/B Testing |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | 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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 1-3 Wochen vom Draft bis zur Entscheidung | 30-60 min | 1-4 Wochen | 15-45 min |
Participantsdifferent | 3-20 Reviewer | 2-10 | 1-6 | 1-3 |
Formatdifferent | Async | Workshop + async | Async | Async |
Outputdifferent | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | DACI Matrix, Decision Owner, Decision Log | Experiment results, Decision log, Learning summary | ADR File, Decision Log, Rationale |
Tagsno overlap | ArchitectureDecisionAsyncGovernance | DecisionRolesGovernanceAlignment | ExperimentsGrowthAnalyticsValidation | ArchitectureRationaleDocumentationGovernance |