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| Criterion |  Decision Making RAPID |  Architecture arc42 |  Architecture SAAM (Software Architecture Analysis Method) |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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 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 | Low | High | Low |
Timedifferent | 45-90 min | 1-2 Tage | Preparation, scenario analysis, and findings review; effort depends on scope | 30-60 min |
Participantsdifferent | 3-12 | 1-4 | Architecture experts and stakeholders for scenarios and weighting | 2-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | RAPID Role Map, Recommendation, Decision Log | Architecture Document, Context View, Runtime View, Deployment View | 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 | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | DecisionRolesGovernance | ArchitectureDocumentationCommunication | ArchitectureChangeAnalysisComparisonQuality | DecisionRolesGovernanceAlignment |