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| Criterion |  Architecture C4 Model |  DevOps Blameless Postmortem |  DevOps Incident Timeline Analysis |
|---|---|---|---|
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. | 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. | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 1-4 h | 30-90 min | 60-180 min |
Participantsdifferent | 1-5 | 3-12 | 3-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Postmortem Doc, Action Items, Timeline | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions |
Tagsno overlap | ArchitectureCommunicationVisualization | Site Reliability EngineeringIncidentLearningReliability | IncidentTimelineSite Reliability Engineering |
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