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Selected:TOWS MatrixATAM (Architecture Tradeoff Analysis Method)Constraint AnalysisSAAM (Software Architecture Analysis Method)
| Criterion |  Business Strategy TOWS Matrix |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Constraint Analysis |  Architecture SAAM (Software Architecture Analysis Method) |
|---|---|---|---|---|
Purposedifferent | The TOWS Matrix connects internal strengths and weaknesses with external opportunities and threats into action-oriented strategies. It goes a step further than a pure stocktaking. | 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. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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. |
Complexitydifferent | Medium | High | Low | High |
Timedifferent | 1-2 h | Several meetings plus preparation and analysis; total effort depends on scope | 30-90 min | Preparation, scenario analysis, and findings review; effort depends on scope |
Participantsdifferent | 3-10 | Evaluation team, architects, and relevant stakeholders | 2-8 | Architecture experts and stakeholders for scenarios and weighting |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | TOWS Matrix, Strategic Options, Priority Actions | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | 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 |
Tagsno overlap | StrategyAnalysisOptions | ArchitectureQualityRiskTradeoffsStakeholders | ConstraintsDecisionPlanningOptions | ArchitectureChangeAnalysisComparisonQuality |