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Selected:A/B TestingSAAM (Software Architecture Analysis Method)Root Cause Tree AnalysisChange Analysis
| Criterion |  Growth A/B Testing |  Architecture SAAM (Software Architecture Analysis Method) |  Operations Root Cause Tree Analysis |  Operations Change Analysis |
|---|---|---|---|---|
Purposedifferent | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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 problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. |
Complexitydifferent | High | High | Medium | Medium |
Timedifferent | 1-4 Wochen | Preparation, scenario analysis, and findings review; effort depends on scope | 1-3 h | 45-120 min |
Participantsdifferent | 1-6 | Architecture experts and stakeholders for scenarios and weighting | 2-8 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Experiment results, Decision log, Learning summary | 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 | Cause Tree, Evidence Notes, Countermeasures | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | ExperimentsGrowthAnalyticsValidation | ArchitectureChangeAnalysisComparisonQuality | Root causeTreeIncidentQuality | ChangeRoot causeTroubleshootingComparison |