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Selected:3-Circle Venn DiagramRoot Cause AnalysisSAAM (Software Architecture Analysis Method)Change Analysis
| Criterion |  Facilitation 3-Circle Venn Diagram |  Operations Root Cause Analysis |  Architecture SAAM (Software Architecture Analysis Method) |  Operations Change Analysis |
|---|---|---|---|---|
Purposedifferent | When three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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. |
Complexitydifferent | Low | Medium | High | Medium |
Timedifferent | 15-45 min | 1-4 h | Preparation, scenario analysis, and findings review; effort depends on scope | 45-120 min |
Participantsdifferent | 2-8 | 3-8 | Architecture experts and stakeholders for scenarios and weighting | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Venn Diagram, Overlap Notes, Differentiators | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | 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 |
Tagsno overlap | ComparisonFacilitationAlignment | Root causeProblem solvingQualityIncident | ArchitectureChangeAnalysisComparisonQuality | ChangeRoot causeTroubleshootingComparison |