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| Criterion |  Architecture SAAM (Software Architecture Analysis Method) |  Operations Root Cause Analysis |  Operations Barrier Analysis |
|---|---|---|---|
Purposedifferent | 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. | 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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | Preparation, scenario analysis, and findings review; effort depends on scope | 1-4 h | 2-4 h |
Participantsdifferent | Architecture experts and stakeholders for scenarios and weighting | 3-8 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 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 | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | ArchitectureChangeAnalysisComparisonQuality | Root causeProblem solvingQualityIncident | Root causeSafetyIncident |
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