对主题数据库技术中的亲合性分析方法进行研究，基于单向性模型对该分析方法进行了改进。
The relative analysis method of subject database technology were studied, and put forward an improved unilateral model and computing formula.
详细介绍并讨论基于角色控制的数据库模型和API模型的实现方法。
Detailed discussion is given regarding the implementation of models of RBAC database and API.
系统设计中利用基于关系模型的数据库建模方法idef1x对属性数据进行建模。
The Database modeling approach of IDEF1X that bases on the relation model is employed in the system design.
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