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| Criterion |  Decision Making Risk Matrix |  Operations Barrier Analysis |  Operations Kepner-Tregoe |  Operations Fault Tree Analysis |
|---|---|---|---|---|
Purposedifferent | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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 a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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 | Low | Medium | High | High |
Timedifferent | 30-60 min | 2-4 h | 2-8 h | 2-6 h |
Participantsdifferent | 3-10 | 2-6 | 2-8 | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Risk Matrix, Top Risk List | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Problem Analysis, Decision Analysis, Risk Plan | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | RiskDecisionPrioritizationAssessment | Root causeSafetyIncident | Problem solvingRoot causeDecisionOperations | RiskRoot causeSafety |