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| Criterion |  Engineering Failure Scenario Analysis |  Operations ALPEN Method |  Operations Barrier Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | 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 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. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | 1-3 h | 10-20 min daily | 2-4 h | 2-6 h |
Participantsdifferent | 3-8 | 1 | 2-6 | 3-10 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Daily Plan, Time Estimates, Review Notes | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | FailureResilienceRisk | PlanningTime managementProductivityOperations | Root causeSafetyIncident | RiskQualityOperationsRoot cause |