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| Criterion |  DevOps Blameless Postmortem |  Operations Eat the Frog |  Operations 8D Problem Solving |  Operations Ivy Lee Method |
|---|---|---|---|---|
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. | The method protects energy and attention for the task that creates the largest progress and is often postponed. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 30-90 min | 15-90 min daily | 1-6 Wochen | 5-10 min daily |
Participantsdifferent | 3-12 | 1 | 4-10 | 1 |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Priority Task, Completion Note, Daily Focus | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Daily Priority List, Completion Notes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | PrioritizationProductivityFocusExecution | QualityProblem solvingRoot cause | PrioritizationProductivityExecution |