철도소프트웨어 발주 및 평가프로세스 제안

초록

Safety critical systems are those inwhich a failure can have serious and irreversible consequences. Nowadays digital technology has been rapidly applied to critical system such as railways, airplanes, nuclear power plants, and vehicles. The main difference between analog system and digital system is that the software is the key component of the digital system. The digital system performs more varying and highly complex functions efficiently compared to the existing analog systembecause software can be flexibly designed and implemented. The flexible designmake it difficult to predict the software failures. This paper reviews safety standard and criteria for safety critical system such as railway systemand suggests development process, orderingmanagement and assessment process for railwaysoftwarewithmoredetail description.