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| Criterion |  Operations Root Cause Tree Analysis |  Architecture SAAM (Software Architecture Analysis Method) |  Decision Making Decision Matrix |
|---|---|---|---|
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. | 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 several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. |
Complexitydifferent | Medium | High | Medium |
Timedifferent | 1-3 h | Preparation, scenario analysis, and findings review; effort depends on scope | 45-90 min |
Participantsdifferent | 2-8 | Architecture experts and stakeholders for scenarios and weighting | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | 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 | Decision Matrix, Scoring Rationale, Selected Option |
Tagsno overlap | Root causeTreeIncidentQuality | ArchitectureChangeAnalysisComparisonQuality | DecisionCriteriaScoringTradeoffs |
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