...Entity Relationship Model - ER模型- 实体关系模型 1976年Peter Chen首次提出了Entity Relationship Modeling(实体关系建模)概念,并发明了陈氏表示法Peter Chen's Notation,因此ER模型也可以叫做Chen's Model(陈氏模型)。
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For traditional modeling techniques, such as entity relationship diagram or data flow diagram, no specific test techniques are available to date.
对于传统的建模技术，例如实体关系图或数据流程图，没有可用的特定测试技术会过时。
There are other approaches and forms, but this article focuses on the entity-relationship modeling technique because it is more closely related to the technologies described later.
还存在其他方法和形式，但是本文将集中于实体关系建模技术，因为此项技术与稍后将描述的技术更密切相关。
Familiarity with a variety of model forms, such as entity-relationship diagrams (ERDs), UML, and other system-oriented modeling approaches, will provide you with a wide range of modeling options.
熟悉各种模型形式，如实体关系图(Entity - Relationship Diagram, ERD)、UML和其他面向系统的建模方法，将提供广泛的建模选项。
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