A method for analyzing and designing a physical system architecture of a safety-critical system (SYS), wherein a physical system analysis model (PSYS-AM) representing the physical system architecture (PSYS-A) of said safety-critical system (SYS) is modified incrementally until calculated failure rates (λPFM) of failure modes (FM) of said physical system analysis model (PSYS-AM) are less or equal to failure rates (λFFM ) of corresponding failure modes (FM) of a functional system analysis model (FSYS-AM) representing a functional system architecture (FSYS-A) of said safety-critical system (SYS) .
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机译:一种用于分析和设计安全关键系统(SYS)的物理系统体系结构的方法,其中表示所述安全关键系统(SYS)的物理系统体系结构(PSYS-A)的物理系统分析模型(PSYS-AM)逐步修改,直到所述物理系统分析模型(PSYS-AM)的故障模式(FM)的计算出的故障率(λ P Sup> FM Sub>)小于或等于故障率表示所述安全性的功能系统架构(FSYS-A)的功能系统分析模型(FSYS-AM)的相应故障模式(FM)的(λ F Sup> FM Sub>)关键系统(SYS)。
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