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| Criterion |  Operations Failure Mode and Effects Analysis |  Operations Barrier Analysis |  DevOps Incident Command |  Operations Fault Tree Analysis |
|---|---|---|---|---|
Purposedifferent | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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. | 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 critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. |
Complexitydifferent | High | Medium | Medium | High |
Timedifferent | 2-6 h | 2-4 h | As needed | 2-6 h |
Participantsdifferent | 3-10 | 2-6 | 4-15 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Incident Log, Action Tracker, Stakeholder Updates | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | RiskQualityOperationsRoot cause | Root causeSafetyIncident | IncidentOperationsReliability | RiskRoot causeSafety |