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Selected:SAAM (Software Architecture Analysis Method)Change AnalysisTOWS MatrixFailure Mode and Effects Analysis
| Criterion |  Architecture SAAM (Software Architecture Analysis Method) |  Operations Change Analysis |  Business Strategy TOWS Matrix |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
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. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | High | Medium | Medium | High |
Timedifferent | Preparation, scenario analysis, and findings review; effort depends on scope | 45-120 min | 1-2 h | 2-6 h |
Participantsdifferent | Architecture experts and stakeholders for scenarios and weighting | 2-6 | 3-10 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | 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 | Change Matrix, Cause Hypotheses, Validation Questions, Action List | TOWS Matrix, Strategic Options, Priority Actions | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | ArchitectureChangeAnalysisComparisonQuality | ChangeRoot causeTroubleshootingComparison | StrategyAnalysisOptions | RiskQualityOperationsRoot cause |