This paper presents a description scheme and gets it checked in the fault-tolerant dualcomputersystem implemented by software.
提出了一套UML的描述方案，并在一个使用软件实现的双机容错系统中进行了验证。
2
Of course, interconnection state, and there are also computer users IC card consistent data on the system, this is achieved with the dual safety data.
当然，联网状态下，电脑内还存有与用户IC卡内一致的数据，对系统而言，这也是实现了双安全数据配份。
3
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.