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Selected:SAAM (Software Architecture Analysis Method)ATAM (Architecture Tradeoff Analysis Method)5 Whys
| Criterion |  Architecture SAAM (Software Architecture Analysis Method) |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations 5 Whys |
|---|---|---|---|
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. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | High | High | Low |
Timedifferent | Preparation, scenario analysis, and findings review; effort depends on scope | Several meetings plus preparation and analysis; total effort depends on scope | 15-30 min |
Participantsdifferent | Architecture experts and stakeholders for scenarios and weighting | Evaluation team, architects, and relevant stakeholders | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
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 alternatives | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Root cause notes, Countermeasures |
Tagsno overlap | ArchitectureChangeAnalysisComparisonQuality | ArchitectureQualityRiskTradeoffsStakeholders | Root causeIncidentLeanProblem solving |
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