E-R model is designed and translated into logic model. Knowledge base is realized basing on database.

并通过概念模型设计、逻辑设计、数据表设计，完成了基于数据库的知识库实现。

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This text introduced the basic concept and modeling process of a semantic object model, and compared it with E-R model.

简要介绍了语义对象模型的几个基本概念，并与E - R模型作比较。

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This paper makes an E-R model for the comprehensive vulnerability analysis model, and establishes IMS vulnerability knowledge base.

并对脆弱性综合分析模型进行了E-R建模，建立了脆弱性知识库。

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