In this paper, the processes which are currently under development in South Korea, concerning railway
safety management system are introduced. Railway safety management system in South Korea is briefly presented,
making particular attentions to Systems Engineering Management Plan (SEMP). To make huge national R&D projects
successful, systematic management process is essential. In this respect, detailed applying SEMP on railway safety
management system of South Korea is discussed including Systems Engineering process and Verification and
Validation procedures. Furthermore, a computer-aided systems engineering tool (Cradle) is used in order to make the
management process more easily controllable.