摘要
本文针对原有知识平台中权限控制粒度不够的问题,提出了一个基于关系代数的权限控制模型,形式化定义了权限控制规则及其表达方法,提出了有关设计方案。
An access control model which is based on relational algebra is put forward for the priority granularity problem in our KM system. The access control rule and the representation language of it are formally defined, and the implementation of this model is designed.
出处
《苏州大学学报（工科版）》
CAS
2009年第6期66-68,共3页
Journal of Soochow University Engineering Science Edition (Bimonthly)
关键词
关系代数
权限控制模型
细粒度
relational algebra
access control model
granule
