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Selected:MORT AnalysisATAM (Architecture Tradeoff Analysis Method)Family Tree AnalysisBarrier Analysis
| Criterion |  Operations MORT Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Family Tree Analysis |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. | 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 | High | High | Medium | Medium |
Timedifferent | Mehrere Tage bis Wochen | Several meetings plus preparation and analysis; total effort depends on scope | 2-4 h | 2-4 h |
Participantsdifferent | 2-6 | Evaluation team, architects, and relevant stakeholders | 2-6 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Family Tree Diagram, Pattern Notes, Systemic Measures | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | Root causeSafetySystemicIncident | ArchitectureQualityRiskTradeoffsStakeholders | Root causePatternsIncidentSystemic | Root causeSafetyIncident |