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| Criterion |  Operations PDCA Cycle |  DevOps Blameless Postmortem |  DevOps Incident Command |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. | 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. | 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. | 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. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 1 h bis mehrere Wochen | 30-90 min | As needed | 45-90 min |
Participantsdifferent | 1-8 | 3-12 | 4-15 | 2-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | Postmortem Doc, Action Items, Timeline | Incident Log, Action Tracker, Stakeholder Updates | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | Continuous improvementLeanExperiments | Site Reliability EngineeringIncidentLearningReliability | IncidentOperationsReliability | LeanProblem solvingCoachingOperations |