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| Criterion |  Knowledge Modeling Teach-back |  DevOps Blameless Postmortem |  Operations Root Cause Tree Analysis |
|---|---|---|---|
Purposedifferent | Teach-back checks whether an explanation actually got through to the other person. The method makes misunderstandings visible early and strengthens shared understanding in advisory and learning situations. | 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 problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 5-20 min | 30-90 min | 1-3 h |
Participantsdifferent | 2-8 | 3-12 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Understanding Check, Clarification Notes, Learning Gaps | Postmortem Doc, Action Items, Timeline | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | LearningUnderstandingCommunication | Site Reliability EngineeringIncidentLearningReliability | Root causeTreeIncidentQuality |
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