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| Criterion |  Operations Fault Tree Analysis |  Operations RACI Matrix |  Operations Causal Factor Analysis |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | With unclear responsibilities across several roles or areas, the method creates unambiguous accountability logic. It reduces friction because decision, execution, contribution, and information become separately visible. | 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. |
Complexitydifferent | High | Low | High | Medium |
Timedifferent | 2-6 h | 45-90 min | 2-6 h | 2-4 h |
Participantsdifferent | 3-8 | 2-8 | 3-10 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | RACI Matrix, Responsibility Map, Decision Notes | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | RiskRoot causeSafety | RolesResponsibilityGovernanceOperations | CausalityIncidentRoot causeTimeline | Root causeSafetyIncident |