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| Criterion | ![]() Operations Learning Review | ![]() Operations A3 Problem Solving | ![]() Operations ABC Analysis | ![]() DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-3 h | 45-90 min | 30-60 min | 30-90 min |
Participantsdifferent | 3-10 | 2-5 | 1-5 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Learning Review Notes, System Factors, Improvement Actions | A3 Report, Action Plan, Root Cause Analysis | ABC Classification, Focus Rules, Control List | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | LearningRetrospectiveIncidentOperations | LeanProblem solvingCoachingOperations | PrioritizationOperationsPortfolio | Site Reliability EngineeringIncidentLearningReliability |



