Study of Security and Usability of the Dual Module Hot Spare Computer Interlocking Control System
Lei Sun · Zhongguo anquan kexue xuebao · 2004
Based on the on-site practical situation, security index and usability index of the dual module hot spare (DMHS) computer interlocking control system are studied. The low system invalidation probability, caused by system failure directly, is demonstrated by analyzing the DMHS computer interlocking control system invalidation. Therefore, failure-usability coefficient is introduced, and the effects of the failure-usability coefficient on the reliability, security, and usability of the system are analyzed. Simulation results show the unchanged security and the remarkable improvement of reliability and usability.