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| Criterion |  Facilitation Team Charter |  DevOps Incident Command |  DevOps Blameless Postmortem |  Agile 4Ls Retrospective |
|---|---|---|---|---|
Purposedifferent | When a team is starting fresh or working past each other, Team Charter clarifies the shared working basis. It visibly sets out how collaboration, decision paths, and mutual conduct should work day to day. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. | 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. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 2-4 h | As needed | 30-90 min | 45–75 min |
Participantsdifferent | 3-12 | 4-15 | 3-12 | Team members involved |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Team Charter, Working Norms, Role Notes | Incident Log, Action Tracker, Stakeholder Updates | Postmortem Doc, Action Items, Timeline | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | TeamAlignmentCollaboration | IncidentOperationsReliability | Site Reliability EngineeringIncidentLearningReliability | RetrospectiveLearningReflectionTeam |