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Selected:ABC AnalysisSAAM (Software Architecture Analysis Method)Assumption SurfacingATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Operations ABC Analysis |  Architecture SAAM (Software Architecture Analysis Method) |  Decision Making Assumption Surfacing |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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. |
Complexitydifferent | Low | High | Low | High |
Timedifferent | 30-60 min | Preparation, scenario analysis, and findings review; effort depends on scope | 45-90 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1-5 | Architecture experts and stakeholders for scenarios and weighting | 2-8 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ABC Classification, Focus Rules, Control List | 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 | Assumption List, Critical Assumptions, Learning Plan | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | PrioritizationOperationsPortfolio | ArchitectureChangeAnalysisComparisonQuality | AssumptionsRiskDecisionDiscovery | ArchitectureQualityRiskTradeoffsStakeholders |