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| Criterion |  DevOps Blameless Postmortem |  Operations Root Cause Tree Analysis |  Agile Start Stop Continue |
|---|---|---|---|
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 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. | When a team wants to deliberately adjust its working behavior, it makes habits visible and assessable. It focuses on concrete changes instead of diffuse mood. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 30-90 min | 1-3 h | 30-60 min |
Participantsdifferent | 3-12 | 2-8 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Cause Tree, Evidence Notes, Countermeasures | Start Stop Continue Board, Improvement Actions |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Root causeTreeIncidentQuality | RetrospectiveImprovementTeamReflection |
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