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| Criterion |  DevOps Blameless Postmortem |  Systems Thinking Future Reality Tree |  Systems Thinking Leverage Points |
|---|---|---|---|
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 Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | Leverage Points show exactly where interventions in a system produce a disproportionate effect. It draws relationships, patterns, and feedback loops. The result is captured as a leverage map and action strategy. |
Complexitydifferent | Medium | High | High |
Timedifferent | 30-90 min | 2-4 h | Half day |
Participantsdifferent | 3-12 | 3-8 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Leverage Map, Action Strategy |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Theory of ConstraintsSystems thinkingChange | Systems thinkingChangeStrategy |
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