Systematic Risk Analysis: FMEA and FTA Approaches for Multi-Level System Architectures

Abstract

This paper explores the advantages of Model-Based Systems Engineering (MBSE) and Model-Based Safety & Reliability Analysis (MBSRA) compared to traditional approaches in the context of multi-level complex system architecture. It outlines a comprehensive approach to developing multilayer architectures while integrating reliability analysis and ensuring traceability of design elements. Utilizing Failure Mode Effects Analysis (FMEA) and Fault Tree Analysis (FTA), the study demonstrates how these reliability analyses yield actionable insights for modifying system design. The iterative process of refining both architecture and reliability assessments throughout the product lifecycle underscores the dynamic interplay between design evolution and safety considerations. The findings highlight the effectiveness of MBSE and MBSRA in enhancing the reliability and robustness of complex systems, ultimately contributing to more resilient engineering practices.