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Selected:Risk StormingFault Tree AnalysisARID (Active Reviews for Intermediate Designs)Barrier Analysis
| Criterion |  Architecture Risk Storming |  Operations Fault Tree Analysis |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | 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. | 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 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 | Low | High | Medium | Medium |
Timedifferent | 60-90 min | 2-6 h | 2–4 h review as a planning range; preparation and evaluation additional | 2-4 h |
Participantsdifferent | 4-12 | 3-8 | Designers, developers as users, and facilitation | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Annotated Diagram, Prioritized Risk List, Action Backlog | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | RiskArchitectureWorkshopValidation | RiskRoot causeSafety | ArchitectureEngineeringFeedbackValidationTasks | Root causeSafetyIncident |