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| Criterion |  Architecture C4 Model |  Engineering Fault Isolation |  Architecture SAAM (Software Architecture Analysis Method) |
|---|---|---|---|
Purposedifferent | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | 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. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 1-4 h | 30-180 min | Preparation, scenario analysis, and findings review; effort depends on scope |
Participantsdifferent | 1-5 | 1-6 | Architecture experts and stakeholders for scenarios and weighting |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | 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 |
Tagsno overlap | ArchitectureCommunicationVisualization | TroubleshootingDiagnosisEngineering | ArchitectureChangeAnalysisComparisonQuality |
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