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| Criterion |  Systems Thinking Future Reality Tree |  Architecture arc42 |  Architecture SAAM (Software Architecture Analysis Method) |
|---|---|---|---|
Purposedifferent | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | 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. | 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 | High | Low | High |
Timedifferent | 2-4 h | 1-2 Tage | Preparation, scenario analysis, and findings review; effort depends on scope |
Participantsdifferent | 3-8 | 1-4 | Architecture experts and stakeholders for scenarios and weighting |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Architecture Document, Context View, Runtime View, Deployment View | 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 | Theory of ConstraintsSystems thinkingChange | ArchitectureDocumentationCommunication | ArchitectureChangeAnalysisComparisonQuality |
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