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| Criterion | ![]() Operations A3 Problem Solving | ![]() DevOps Blameless Postmortem | ![]() Operations Learning Review | ![]() DevOps Incident Command |
|---|---|---|---|---|
Purposedifferent | 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. | 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 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. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 45-90 min | 30-90 min | 1-3 h | As needed |
Participantsdifferent | 2-5 | 3-12 | 3-10 | 4-15 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Postmortem Doc, Action Items, Timeline | Learning Review Notes, System Factors, Improvement Actions | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | LeanProblem solvingCoachingOperations | Site Reliability EngineeringIncidentLearningReliability | LearningRetrospectiveIncidentOperations | IncidentOperationsReliability |



