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| Criterion |  Operations Accountability Ladder |  DevOps Blameless Postmortem |  Agile Sprint Retrospective |  Agile Sailboat Retrospective |
|---|---|---|---|---|
Purposedifferent | With defensive reactions to problems, the method shifts the view from justification to ownership. It makes visible which reaction stage a person or team is currently stuck on. | 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 is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together. | When a team wants to read momentum, brakes, and risks together, it offers an easily understandable picture of the situation. It makes drive, obstacles, and headwind visible in the same picture. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 20-45 min | 30-90 min | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 45-90 min |
Participantsdifferent | 1-8 | 3-12 | Scrum Team | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Ownership Reflection, Action Commitment, Coaching Notes | Postmortem Doc, Action Items, Timeline | Improvement actions, Team agreements | Sailboat Board, Risks, Improvement Actions |
Tagsno overlap | ResponsibilityLeadershipTeam | Site Reliability EngineeringIncidentLearningReliability | RetrospectiveImprovementLearning | RetrospectiveTeamImprovement |