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| Criterion |  DevOps ChatOps |  DevOps Blameless Postmortem |  Operations 8D Problem Solving |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | For operational work in a distributed team, the method links communication with direct system control. It records decisions right where the signal, the context, and the execution come 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. | 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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | Ongoing | 30-90 min | 1-6 Wochen | 2-4 h |
Participantsdifferent | 2-20 | 3-12 | 4-10 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Chat Transcript, Action Log, Automations | Postmortem Doc, Action Items, Timeline | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | CollaborationEngineeringIncident | Site Reliability EngineeringIncidentLearningReliability | QualityProblem solvingRoot cause | Root causeSafetyIncident |