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| Criterion |  Operations ABC Analysis |  Operations Ivy Lee Method |  DevOps Blameless Postmortem |  Operations After-Action 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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | 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. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 30-60 min | 5-10 min daily | 30-90 min | 20-45 min |
Participantsdifferent | 1-5 | 1 | 3-12 | 3-12 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | ABC Classification, Focus Rules, Control List | Daily Priority List, Completion Notes | Postmortem Doc, Action Items, Timeline | Lessons learned, Action items, Event summary |
Tagsno overlap | PrioritizationOperationsPortfolio | PrioritizationProductivityExecution | Site Reliability EngineeringIncidentLearningReliability | LearningOperationsImprovement |