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| Criterion | ![]() DevOps Blameless Postmortem | ![]() Agile 4Ls Retrospective | ![]() Facilitation Responsibility Poker |
|---|---|---|---|
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. | 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. | When it stays unclear who carries responsibility and who only contributes, Responsibility Poker makes the distribution of responsibility explicit. It sharpens the boundaries between weighing in, deciding, and bearing consequences. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 30-90 min | 45–75 min | 45-90 min |
Participantsdifferent | 3-12 | Team members involved | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | 4Ls Board, Learning Themes, Improvement Actions | Responsibility Map, Role Agreements, Open Questions |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | RetrospectiveLearningReflectionTeam | RolesResponsibilityTeamFacilitation |
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