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| Criterion |  Systems Thinking Behavior Over Time Graph |  DevOps Blameless Postmortem |  Operations Family Tree Analysis |
|---|---|---|---|
Purposedifferent | 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. | 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 a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 20-45 min | 30-90 min | 2-4 h |
Participantsdifferent | 1-10 | 3-12 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Behavior Over Time Graph, Trend Hypotheses, Key Events | Postmortem Doc, Action Items, Timeline | Family Tree Diagram, Pattern Notes, Systemic Measures |
Tagsno overlap | Systems thinkingPatternsDynamics | Site Reliability EngineeringIncidentLearningReliability | Root causePatternsIncidentSystemic |
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