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| Criterion |  Architecture Architecture Decision Record |  Decision Making DACI |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making RAPID |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | 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. |
Complexitydifferent | Low | Low | High | Medium |
Timedifferent | 15-45 min | 30-60 min | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min |
Participantsdifferent | 1-3 | 2-10 | Evaluation team, architects, and relevant stakeholders | 3-12 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | DACI Matrix, Decision Owner, Decision Log | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | RAPID Role Map, Recommendation, Decision Log |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | DecisionRolesGovernanceAlignment | ArchitectureQualityRiskTradeoffsStakeholders | DecisionRolesGovernance |