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Criterion
Paper illustration with architecture components and concrete change tasks for comparison.
Architecture
SAAM (Software Architecture Analysis Method)
Paper illustration for RAPID
Decision Making
RAPID
Paper illustration: scenarios and architectural decisions are connected to identified risks.
Architecture
ATAM (Architecture Tradeoff Analysis Method)
Paper illustration for DACI
Decision Making
DACI
Purposedifferent
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.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 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
HighMediumHighLow
Timedifferent
Preparation, scenario analysis, and findings review; effort depends on scope45-90 minSeveral meetings plus preparation and analysis; total effort depends on scope30-60 min
Participantsdifferent
Architecture experts and stakeholders for scenarios and weighting3-12Evaluation team, architects, and relevant stakeholders2-10
Formatsame
Workshop + asyncWorkshop + asyncWorkshop + asyncWorkshop + async
Outputdifferent
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 alternativesRAPID Role Map, Recommendation, Decision LogPrioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigationsDACI Matrix, Decision Owner, Decision Log
Tagsno overlap
ArchitectureChangeAnalysisComparisonQuality
DecisionRolesGovernance
ArchitectureQualityRiskTradeoffsStakeholders
DecisionRolesGovernanceAlignment
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