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| Criterion |  Architecture C4 Model |  DevOps ChatOps |  DevOps Blameless Postmortem |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | 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. | For operational work in a distributed team, the method links communication with direct system control. It records decisions right where the signal, the context, and the execution come together. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | 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 | Low | Medium | Medium | Medium |
Timedifferent | 1-4 h | Ongoing | 30-90 min | 60-120 min |
Participantsdifferent | 1-5 | 2-20 | 3-12 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Chat Transcript, Action Log, Automations | Postmortem Doc, Action Items, Timeline | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | ArchitectureCommunicationVisualization | CollaborationEngineeringIncident | Site Reliability EngineeringIncidentLearningReliability | ArchitectureCommunicationStakeholdersCanvas |