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| Criterion |  DevOps Blameless Postmortem |  DevOps ChatOps |  Systems Thinking Causal Loop Diagram |  Systems Thinking Behavior Over Time Graph |
|---|---|---|---|---|
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. | For operational work in a distributed team, the method links communication with direct system control. It records decisions right where the signal, the context, and the execution come together. | 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. | A Behavior Over Time Graph shows how a metric or observation develops over time. The method makes trends, breaks, and recurring patterns visible that get lost in snapshots. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 30-90 min | Ongoing | 1-3 h | 20-45 min |
Participantsdifferent | 3-12 | 2-20 | 2-8 | 1-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Chat Transcript, Action Log, Automations | Causal Loop Diagram, Feedback Notes, Leverage Points | Behavior Over Time Graph, Trend Hypotheses, Key Events |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | CollaborationEngineeringIncident | FeedbackSystems thinkingCausalityDynamics | Systems thinkingPatternsDynamics |