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| Criterion |  DevOps Incident Command |  Operations Causal Factor Analysis |  Operations Barrier Analysis |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | 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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | 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. | 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 | High | Medium | Medium |
Timedifferent | As needed | 2-6 h | 2-4 h | 30-90 min |
Participantsdifferent | 4-15 | 3-10 | 2-6 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Incident Log, Action Tracker, Stakeholder Updates | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Postmortem Doc, Action Items, Timeline |
Tags1 shared | IncidentOperationsReliability | CausalityIncidentRoot causeTimeline | Root causeSafetyIncident | Site Reliability EngineeringIncidentLearningReliability |