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Selected:Barrier AnalysisARID (Active Reviews for Intermediate Designs)Current Reality TreeMORT Analysis
| Criterion |  Operations Barrier Analysis |  Architecture ARID (Active Reviews for Intermediate Designs) |  Systems Thinking Current Reality Tree |  Operations MORT Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | 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 | Medium | Medium | High | High |
Timedifferent | 2-4 h | 2–4 h review as a planning range; preparation and evaluation additional | 2-6 h | Mehrere Tage bis Wochen |
Participantsdifferent | 2-6 | Designers, developers as users, and facilitation | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | 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 | Current Reality Tree, Core Problems, Intervention Ideas | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | Root causeSafetyIncident | ArchitectureEngineeringFeedbackValidationTasks | Systems thinkingRoot causeConstraintsCausality | Root causeSafetySystemicIncident |