Korea Atomic Energy Research Institute1, 2,
Because the safety is a system property, the top level safety requirements are allocated into the implementation of the system components. A system consists of hardware, software, and human according to the whole-part decomposition. The safety requirements of the system and its components are implemented through a means-ends lifecycle. We propose the Means-Ends and Whole-Part Traceability Analysis method to trace the safety requirements, and demonstrate the experiences of traceability analysis for Korea Nuclear Instrumentation and Control System (KNICS) development with the traceability analysis tool, TRACE.