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| Criterion |  Architecture SAAM (Software Architecture Analysis Method) |  Product Strategy DIBB |  Operations Kepner-Tregoe |  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. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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 | Low | High | Medium |
Timedifferent | Preparation, scenario analysis, and findings review; effort depends on scope | 1-2 h | 2-8 h | 45-120 min |
Participantsdifferent | Architecture experts and stakeholders for scenarios and weighting | 2-8 | 2-8 | 2-6 |
Formatsame | Workshop + async | 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 | DIBB document, Belief list, Bet list, Learning report | Problem Analysis, Decision Analysis, Risk Plan | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | ArchitectureChangeAnalysisComparisonQuality | StrategyDecisionAssumptionsHypothesis | Problem solvingRoot causeDecisionOperations | ChangeRoot causeTroubleshootingComparison |