本文以海鼎多业态商业自动化系统(HDPOS5)为例，将改进的基于岗位与角色的访问控制模型应用到该系统中，更好的保证了系统的安全性。
This paper takes heading multiple area automatic commerce system (HDPOS5) for example, applied the improved base on position and role access control model to system, ensure the security of the system.
仓库布局优化研究就是针对当前国内外在自动化仓储系统方面激烈的市场商业竞争而提出的一个基础理论研究项目。
The research on warehouse optimization layout is a basic academic project, which is aimed at the furious commercial competition of domestic and oversea automatic storage system.
其中，实现商业自动化的重要手段之一就是建立POS系统。
Thereinto , the foundation of POS system is an important way to realize commercial automatization in our country.
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