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| Criterion | ![]() Delivery Communication Plan | ![]() Architecture Architecture Communication Canvas | ![]() Decision Making Pre-Mortem | ![]() Architecture C4 Model |
|---|---|---|---|---|
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 Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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 | Low | Medium | Low | Low |
Timedifferent | 45-90 min | 60-120 min | 20–45 min | 1-4 h |
Participantsdifferent | 2-6 | 2-8 | Small cross-functional group | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Communication Plan, Channel Matrix, Message Cadence | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Risk list, Mitigation plan, Assumption log | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | CommunicationStakeholdersDeliveryPlanning | ArchitectureCommunicationStakeholdersCanvas | RiskDecisionFailurePlanning | ArchitectureCommunicationVisualization |



