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| Criterion |  Operations Barrier Analysis |  Operations Causal Factor Analysis |  DevOps ChatOps |  Operations Family Tree Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | 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 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. | For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 2-4 h | 2-6 h | Ongoing | 2-4 h |
Participantsdifferent | 2-6 | 3-10 | 2-20 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Chat Transcript, Action Log, Automations | Family Tree Diagram, Pattern Notes, Systemic Measures |
Tags1 shared | Root causeSafetyIncident | CausalityIncidentRoot causeTimeline | CollaborationEngineeringIncident | Root causePatternsIncidentSystemic |