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| Criterion |  Operations ABC Analysis |  DevOps Blameless Postmortem |  Operations Barrier Analysis |  Operations Learning Review |
|---|---|---|---|---|
Purposedifferent | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 30-60 min | 30-90 min | 2-4 h | 1-3 h |
Participantsdifferent | 1-5 | 3-12 | 2-6 | 3-10 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | ABC Classification, Focus Rules, Control List | Postmortem Doc, Action Items, Timeline | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Learning Review Notes, System Factors, Improvement Actions |
Tagsno overlap | PrioritizationOperationsPortfolio | Site Reliability EngineeringIncidentLearningReliability | Root causeSafetyIncident | LearningRetrospectiveIncidentOperations |