在分析、比对目前常用数据库建模方法的基础上,提出一种扩展的面向角色建模方法,按照分割规则将大型信息管理系统分割成规模可控的小型应用,对每个小型应用采用概念化模式设计过程(CSDP)设计子模型,再利用NORMA工具将这些子模型集成逻辑模型或DDL语句,最终生成物理数据库.实例说明,采用提出的方法建立数据库模型,可以提高信息管理系统的开发效率.
This paper prpposes an extended object role modeling method after analyzing the current data based modeling method. It divides large scale information management system into small scale-controlled system according to partition policy. It employs Conceptual Schema Design Procedure (CSDP) to design sub models, which are transformed to logical model or DDL sentences, so as to create database. The practice shows that the database model built by this method can improve development efficiency of information management system.