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| Criterion |  Operations Root Cause Tree Analysis |  Operations MORT Analysis |  Architecture SAAM (Software Architecture Analysis Method) |
|---|---|---|---|
Purposedifferent | 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 safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | 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 | Medium | High | High |
Timedifferent | 1-3 h | Mehrere Tage bis Wochen | Preparation, scenario analysis, and findings review; effort depends on scope |
Participantsdifferent | 2-8 | 2-6 | Architecture experts and stakeholders for scenarios and weighting |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | 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 | Root causeTreeIncidentQuality | Root causeSafetySystemicIncident | ArchitectureChangeAnalysisComparisonQuality |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
