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| Criterion |  Operations Visual Management |  Architecture C4 Model |  DevOps Blameless Postmortem |  Operations Learning Review |
|---|---|---|---|---|
Purposedifferent | With high tempo and many parallel topics, the method makes status, deviations, and priorities visible at a glance. It reduces search effort and prevents what matters from getting lost in daily work. | 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. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | Ongoing | 1-4 h | 30-90 min | 1-3 h |
Participantsdifferent | 1-20 | 1-5 | 3-12 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Visual Board, Status Indicators, Exception Cues | Context Diagram, Container Diagram, Component Diagram | Postmortem Doc, Action Items, Timeline | Learning Review Notes, System Factors, Improvement Actions |
Tagsno overlap | SignalsOperationsVisual management | ArchitectureCommunicationVisualization | Site Reliability EngineeringIncidentLearningReliability | LearningRetrospectiveIncidentOperations |