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| Criterion |  Operations Accountability Ladder |  DevOps Blameless Postmortem |  Operations Barrier Analysis |
|---|---|---|---|
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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 20-45 min | 30-90 min | 2-4 h |
Participantsdifferent | 1-8 | 3-12 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Ownership Reflection, Action Commitment, Coaching Notes | Postmortem Doc, Action Items, Timeline | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | ResponsibilityLeadershipTeam | Site Reliability EngineeringIncidentLearningReliability | Root causeSafetyIncident |
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