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| Criterion |  Architecture SAAM (Software Architecture Analysis Method) |  Systems Thinking Evaporating Cloud |  Operations 5 Whys |  Operations Change 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. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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 | High | Medium | Low | Medium |
Timedifferent | Preparation, scenario analysis, and findings review; effort depends on scope | 60-120 min | 15-30 min | 45-120 min |
Participantsdifferent | Architecture experts and stakeholders for scenarios and weighting | 2-8 | 2-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop | 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 | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Root cause notes, Countermeasures | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | ArchitectureChangeAnalysisComparisonQuality | Theory of ConstraintsAssumptionsSystems thinking | Root causeIncidentLeanProblem solving | ChangeRoot causeTroubleshootingComparison |