使用图帮助描述，尤其是显示业务实体间的彼此联系。
Use diagrams to support the descriptions, especially to show how business entities are related to each other.
采用实体联系图工具设计了系统的信息模型，并构建了系统的数据库物理信息模型。
Used the E-R graph tool to design the system information model, and has constructed the system database physical information model.
TS16949；过程方法；过程模块；实体联系图；软件界面；软件模块。
TS16949; Process-based Approach; Process Module; er Diagram; Software Interface; Software Module.
其次，在分析切削数据之间联系的基础上，设计了金属切削数据的实体模型（E—R图）。
The relationships of information process in these parts are analysed, and then the Entity-Relation (E-R) diagram of machinability data is designed according to the analysis of machinability data.
其次，在分析切削数据之间联系的基础上，设计了金属切削数据的实体模型（E—R图）。
The relationships of information process in these parts are analysed, and then the Entity-Relation (E-R) diagram of machinability data is designed according to the analysis of machinability data.
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