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Selected:Competency QuestionsSAAM (Software Architecture Analysis Method)Root Cause Tree AnalysisChange Analysis
| Criterion |  Knowledge Modeling Competency Questions |  Architecture SAAM (Software Architecture Analysis Method) |  Operations Root Cause Tree Analysis |  Operations Change Analysis |
|---|---|---|---|---|
Purposedifferent | Competency Questions translate a domain model into concrete questions that it must be able to answer. The method keeps the model's scope clean and prevents pretty but useless structures. | 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 | Medium | High | Medium | Medium |
Timedifferent | 2-4 h | Preparation, scenario analysis, and findings review; effort depends on scope | 1-3 h | 45-120 min |
Participantsdifferent | 2-8 | Architecture experts and stakeholders for scenarios and weighting | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Competency Question Set, Required Concepts, Test Queries, Coverage Matrix | 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 | OntologyKnowledge graphScopeRequirementsSemantic | ArchitectureChangeAnalysisComparisonQuality | Root causeTreeIncidentQuality | ChangeRoot causeTroubleshootingComparison |