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Selected:Causal Factor AnalysisBarrier AnalysisARID (Active Reviews for Intermediate Designs)MORT Analysis
| Criterion |  Operations Causal Factor Analysis |  Operations Barrier Analysis |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations MORT Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. |
Complexitydifferent | High | Medium | Medium | High |
Timedifferent | 2-6 h | 2-4 h | 2–4 h review as a planning range; preparation and evaluation additional | Mehrere Tage bis Wochen |
Participantsdifferent | 3-10 | 2-6 | Designers, developers as users, and facilitation | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | CausalityIncidentRoot causeTimeline | Root causeSafetyIncident | ArchitectureEngineeringFeedbackValidationTasks | Root causeSafetySystemicIncident |