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| Criterion |  Engineering Fault Isolation |  Architecture SAAM (Software Architecture Analysis Method) |  Business Strategy VRIO Framework |  Operations Change Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | The VRIO Framework rates resources and capabilities on whether they are Valuable, Rare, Inimitable, and Organized. It compares strengths, risks, market logic, and courses of action. The result is captured as a VRIO table and strategic actions. | 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 | 30-180 min | Preparation, scenario analysis, and findings review; effort depends on scope | 90-180 min | 45-120 min |
Participantsdifferent | 1-6 | Architecture experts and stakeholders for scenarios and weighting | 3-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | 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 | VRIO Table, Strategic Actions | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | TroubleshootingDiagnosisEngineering | ArchitectureChangeAnalysisComparisonQuality | StrategyDiagnosisBusiness modelCapability | ChangeRoot causeTroubleshootingComparison |