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| Criterion |  Delivery Communication Plan |  Architecture C4 Model |  Systems Thinking CATWOE Analysis |  Systems Thinking Rich Picture |
|---|---|---|---|---|
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. | 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. | 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. | A Rich Picture brings an unclear situation onto a shared drawing. It captures actors, tensions, information flows, and blind spots before the team jumps to solutions too early. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 45-90 min | 1-4 h | 45-90 min | 30-90 min |
Participantsdifferent | 2-6 | 1-5 | 3-8 | 2-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Communication Plan, Channel Matrix, Message Cadence | Context Diagram, Container Diagram, Component Diagram | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | Rich Picture, Problem Framing Notes |
Tagsno overlap | CommunicationStakeholdersDeliveryPlanning | ArchitectureCommunicationVisualization | Systems thinkingFramingStakeholders | Systems thinkingSoft systemsFramingVisualization |