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| Criterion |  Systems Thinking Current Reality Tree |  Architecture Request for Comments |  Architecture C4 Model |
|---|---|---|---|
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. | 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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. |
Complexitydifferent | High | Medium | Low |
Timedifferent | 2-6 h | 1-3 Wochen vom Draft bis zur Entscheidung | 1-4 h |
Participantsdifferent | 3-8 | 3-20 Reviewer | 1-5 |
Formatdifferent | Workshop | Async | Workshop + async |
Outputdifferent | Current Reality Tree, Core Problems, Intervention Ideas | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | Systems thinkingRoot causeConstraintsCausality | ArchitectureDecisionAsyncGovernance | ArchitectureCommunicationVisualization |
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