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| Criterion |  DevOps Blameless Postmortem |  Operations 8D Problem Solving |  Decision Making OODA Loop |  Operations Kepner-Tregoe |
|---|---|---|---|---|
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. | 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. | In dynamic situations, decisions become outdated faster than they can be prepared. The OODA Loop holds observing, orienting, deciding, and acting together as a recurring rhythm so reaction does not slide into inertia. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Medium | High | Medium | High |
Timedifferent | 30-90 min | 1-6 Wochen | 15-60 min je Zyklus | 2-8 h |
Participantsdifferent | 3-12 | 4-10 | 1-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Situation Assessment, Decision Loop, Action Updates | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | QualityProblem solvingRoot cause | DecisionChangeLearningStrategy | Problem solvingRoot causeDecisionOperations |