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| Criterion |  DevOps Blameless Postmortem |  Architecture C4 Model |  Knowledge Modeling Feynman Technique |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | 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 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. | The Feynman Technique checks understanding by explaining a topic so that it stays easy for others to understand. It makes knowledge gaps visible before they become costly in everyday work. | 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 | Medium | Low | Low | Medium |
Timedifferent | 30-90 min | 1-4 h | 20-60 min | 60-120 min |
Participantsdifferent | 3-12 | 1-5 | 1 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Context Diagram, Container Diagram, Component Diagram | Plain-language Explanation, Knowledge Gaps, Study Notes | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ArchitectureCommunicationVisualization | LearningKnowledgeUnderstanding | ArchitectureCommunicationStakeholdersCanvas |