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| Criterion |  Operations Fault Tree Analysis |  Knowledge Modeling Event Modeling |  Operations Failure Mode and Effects 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. | Event Modeling connects business workflows with commands, events, and views into one coherent mental model. It helps design behavior, UI, and technical slices from the same underlying logic. | 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. |
Complexitydifferent | High | Medium | High | Medium |
Timedifferent | 2-6 h | 2-6 h | 2-6 h | 2-4 h |
Participantsdifferent | 3-8 | 2-8 | 3-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Event Model, UI Flow, Commands, Read Models | FMEA Table, Risk Priority, Mitigation Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | RiskRoot causeSafety | EventsBlueprintDomain-Driven DesignBehavior | RiskQualityOperationsRoot cause | Root causeSafetyIncident |