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Selected:Quality Attribute WorkshopFault Tree AnalysisFailure Mode and Effects AnalysisBarrier Analysis
| Criterion |  Architecture Quality Attribute Workshop |  Operations Fault Tree Analysis |  Operations Failure Mode and Effects Analysis |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | A Quality Attribute Workshop translates quality requirements into concrete scenarios and architecture impulses. The method brings product, engineering, and operations to the same view of desired properties. | 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. | 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. | 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 | Medium | High | High | Medium |
Timedifferent | 2-4 h | 2-6 h | 2-6 h | 2-4 h |
Participantsdifferent | 5-15 | 3-8 | 3-10 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Quality Scenarios, Priority List, Architecture Concerns | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | FMEA Table, Risk Priority, Mitigation Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | RequirementsArchitectureWorkshop | RiskRoot causeSafety | RiskQualityOperationsRoot cause | Root causeSafetyIncident |