In this paper, an objected oriented data model, which consists of three parts, is presented.
提出了实现电子地图数据存储的一种实用模型。
The thought of using relational model and objected-oriented methods to unite to denote IDSS is put forward.
从理论上研究了关系模型库的定义与实现，提出并实现了应用关系模型和面向对象方法统一IDSS的思想；
The thought of using relational model and objected-oriented methods to unite to denote IDSS is put forward.
从理论上研究了关系模型库的定义与实现，提出并实现了应用关系模型和面向对象方法统一IDSS的思想；
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