Put forward the concepts involved in the data model of the object in a logical environment, whose essentials are object and relationship.
提出在逻辑环境下对象的数据模型应涉及到的概念，其基本概念是对象和联系。
According to the characteristics of real data environment, this paper presents a kernel information model containing product data object, object relationship and the processes used to handle data.
本文根据产品数据环境这一特点，提出数据对象、对象关系以及处理数据的过程是产品数据管理的核心内容。
According to the characteristics of real data environment, this paper presents a kernel information model containing product data object, object relationship and the processes used to handle data.
本文根据产品数据环境这一特点，提出数据对象、对象关系以及处理数据的过程是产品数据管理的核心内容。
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