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Selected:A3 Problem SolvingSAAM (Software Architecture Analysis Method)Change AnalysisFailure Mode and Effects Analysis
| Criterion |  Operations A3 Problem Solving |  Architecture SAAM (Software Architecture Analysis Method) |  Operations Change Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. | 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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Medium | High | Medium | High |
Timedifferent | 45-90 min | Preparation, scenario analysis, and findings review; effort depends on scope | 45-120 min | 2-6 h |
Participantsdifferent | 2-5 | Architecture experts and stakeholders for scenarios and weighting | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | 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 | Change Matrix, Cause Hypotheses, Validation Questions, Action List | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | LeanProblem solvingCoachingOperations | ArchitectureChangeAnalysisComparisonQuality | ChangeRoot causeTroubleshootingComparison | RiskQualityOperationsRoot cause |