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Selected:Current Reality TreeSAAM (Software Architecture Analysis Method)Architecture Decision Recordarc42
| Criterion |  Systems Thinking Current Reality Tree |  Architecture SAAM (Software Architecture Analysis Method) |  Architecture Architecture Decision Record |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. |
Complexitydifferent | High | High | Low | Low |
Timedifferent | 2-6 h | Preparation, scenario analysis, and findings review; effort depends on scope | 15-45 min | 1-2 Tage |
Participantsdifferent | 3-8 | Architecture experts and stakeholders for scenarios and weighting | 1-3 | 1-4 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Current Reality Tree, Core Problems, Intervention Ideas | 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 | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | Systems thinkingRoot causeConstraintsCausality | ArchitectureChangeAnalysisComparisonQuality | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication |