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| Criterion |  DevOps Incident Timeline Analysis |  Architecture Architecture Communication Canvas |  DevOps Blameless Postmortem |  Architecture C4 Model |
|---|---|---|---|---|
Purposedifferent | 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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 60-180 min | 60-120 min | 30-90 min | 1-4 h |
Participantsdifferent | 3-10 | 2-8 | 3-12 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Postmortem Doc, Action Items, Timeline | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | IncidentTimelineSite Reliability Engineering | ArchitectureCommunicationStakeholdersCanvas | Site Reliability EngineeringIncidentLearningReliability | ArchitectureCommunicationVisualization |