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| Criterion |  DevOps Blameless Postmortem |  Operations ABC Analysis |  Decision Making Decision Matrix |  Operations Learning Review |
|---|---|---|---|---|
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. | 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. | When several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | 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 | Medium | Low | Medium | Medium |
Timedifferent | 30-90 min | 30-60 min | 45-90 min | 1-3 h |
Participantsdifferent | 3-12 | 1-5 | 2-8 | 3-10 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | ABC Classification, Focus Rules, Control List | Decision Matrix, Scoring Rationale, Selected Option | Learning Review Notes, System Factors, Improvement Actions |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | PrioritizationOperationsPortfolio | DecisionCriteriaScoringTradeoffs | LearningRetrospectiveIncidentOperations |