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| Criterion |  DevOps Blameless Postmortem |  Systems Thinking Causal Loop Diagram |  Operations Learning Review |  DevOps Incident Command |
|---|---|---|---|---|
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. | A Causal Loop Diagram makes feedback, reinforcement, and balance in a system legible. It uncovers side effects and self-reinforcement that stay hidden in linear explanations. | 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. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-90 min | 1-3 h | 1-3 h | As needed |
Participantsdifferent | 3-12 | 2-8 | 3-10 | 4-15 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Causal Loop Diagram, Feedback Notes, Leverage Points | Learning Review Notes, System Factors, Improvement Actions | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | FeedbackSystems thinkingCausalityDynamics | LearningRetrospectiveIncidentOperations | IncidentOperationsReliability |