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Selected:Constraint AnalysisRequest for CommentsChange AnalysisSAAM (Software Architecture Analysis Method)
| Criterion |  Decision Making Constraint Analysis |  Architecture Request for Comments |  Operations Change Analysis |  Architecture SAAM (Software Architecture Analysis Method) |
|---|---|---|---|---|
Purposedifferent | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. | 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. | 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 | Low | Medium | Medium | High |
Timedifferent | 30-90 min | 1-3 Wochen vom Draft bis zur Entscheidung | 45-120 min | Preparation, scenario analysis, and findings review; effort depends on scope |
Participantsdifferent | 2-8 | 3-20 Reviewer | 2-6 | Architecture experts and stakeholders for scenarios and weighting |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Change Matrix, Cause Hypotheses, Validation Questions, Action List | 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 | ConstraintsDecisionPlanningOptions | ArchitectureDecisionAsyncGovernance | ChangeRoot causeTroubleshootingComparison | ArchitectureChangeAnalysisComparisonQuality |