从对象模型到数据库关系模型的转换

在面向对象的信息系统开发中，必须实现从对象模型到数据库关系模型的转换，以便利用关系型数据库管理系统（ＲＤＢＭＳ）产品。文中介绍了在管理信息系统（ＭＩＳ）开发中对象模型的建立方法，然后通过对对象模型与关系模型的分析比较，发现两者的各个组成部分之间存在着一一对应关系。在此基础上，提出了对象模型向关系模型转换的方法，最后给出了实例。

Conversion from Object Model to Relational Model of Database

In the development of information systems with the object oriented technique, it is necessary to convert the object model to the relational model of databases in order to implement the information system by using the commercially available products of the relational database management system. The method to build object models in a management information system is introduced in this paper. Then, by analyzing and comparing the object model with relational model, it is discovered that there exist one to one correspondences between the components of the object model and the relational model. Based on that, a conversion method from the object model to the relational model is proposed. A converting example is presented.