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| Criterion |  DevOps Blameless Postmortem |  Systems Thinking Future Reality Tree |  Systems Thinking Leverage Points |  Decision Making Force Field Analysis |
|---|---|---|---|---|
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. | In change initiatives, supporting and restraining forces sit at the table at the same time. Force Field Analysis makes these tensions explicit and shows where change can be pushed forward by strengthening or relieving. |
Complexitydifferent | Medium | High | High | Low |
Timedifferent | 30-90 min | 2-4 h | Half day | 45-90 min |
Participantsdifferent | 3-12 | 3-8 | 3-12 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Leverage Map, Action Strategy | Force Field Map, Change Levers, Risk Notes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Theory of ConstraintsSystems thinkingChange | Systems thinkingChangeStrategy | ChangeDecisionStrategy |