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| Criterion |  Architecture Request for Comments |  Architecture SAAM (Software Architecture Analysis Method) |  Decision Making RAPID |  Decision Making DACI |
|---|---|---|---|---|
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. | SAAM helps teams judge an architecture’s suitability for selected tasks and changes. It is particularly useful for examining modifiability and comparing architecture alternatives with clear reasoning. | 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. | 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. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 1-3 Wochen vom Draft bis zur Entscheidung | Preparation, scenario analysis, and findings review; effort depends on scope | 45-90 min | 30-60 min |
Participantsdifferent | 3-20 Reviewer | Architecture experts and stakeholders for scenarios and weighting | 3-12 | 2-10 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Domain functions mapped to components and connections, Quality attributes and evaluation criteria, Typical tasks and their effects on the architecture, Reasoned evaluation or comparison of alternatives | RAPID Role Map, Recommendation, Decision Log | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | ArchitectureDecisionAsyncGovernance | ArchitectureChangeAnalysisComparisonQuality | DecisionRolesGovernance | DecisionRolesGovernanceAlignment |