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| Criterion |  Facilitation Team Charter |  Agile 4Ls Retrospective |  DevOps Blameless Postmortem |  Agile Mad Sad Glad |
|---|---|---|---|---|
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. | 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. | 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 team's or workshop's mood needs to become readable, it structures emotional signals with little setup. It makes strain, relief, and sources of energy tangible. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 2-4 h | 45–75 min | 30-90 min | 30-60 min |
Participantsdifferent | 3-12 | Team members involved | 3-12 | 3-10 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Team Charter, Working Norms, Role Notes | 4Ls Board, Learning Themes, Improvement Actions | Postmortem Doc, Action Items, Timeline | Emotion Board, Themes, Action Items |
Tagsno overlap | TeamAlignmentCollaboration | RetrospectiveLearningReflectionTeam | Site Reliability EngineeringIncidentLearningReliability | RetrospectiveTeamReflection |