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| Criterion |  Systems Thinking Future Reality Tree |  Architecture C4 Model |  Systems Thinking Current Reality Tree |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
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. | 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. | 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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | High | Low | High | Medium |
Timedifferent | 2-4 h | 1-4 h | 2-6 h | 60-120 min |
Participantsdifferent | 3-8 | 1-5 | 3-8 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Context Diagram, Container Diagram, Component Diagram | Current Reality Tree, Core Problems, Intervention Ideas | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | ArchitectureCommunicationVisualization | Systems thinkingRoot causeConstraintsCausality | ArchitectureCommunicationStakeholdersCanvas |