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| Criterion |  Delivery Communication Plan |  Systems Thinking CATWOE Analysis |  Architecture C4 Model |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | When many people need to be informed in parallel and messages would otherwise arrive unevenly or too late, a Communication Plan orders communication reliably. Channels, audiences, and cadences interlock so important information doesn't get lost. | CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way. | 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. | 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 | Low | Medium | Low | Low |
Timedifferent | 45-90 min | 45-90 min | 1-4 h | 1-2 Tage |
Participantsdifferent | 2-6 | 3-8 | 1-5 | 1-4 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Communication Plan, Channel Matrix, Message Cadence | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | Context Diagram, Container Diagram, Component Diagram | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | CommunicationStakeholdersDeliveryPlanning | Systems thinkingFramingStakeholders | ArchitectureCommunicationVisualization | ArchitectureDocumentationCommunication |