标准编号：ISO 10303-11:2004
中文名称：工业自动化系统和综合 产品数据显示和交换 第11部分： 描述方法：EXPRESS语言参考手册.
英文名称：Industrial automation systems and integration — Product data representation and exchange — Part 11: Description methods: The EXPRESS language reference manual
发布日期：2004-11
标准范围
This part of ISO 10303 defines a language by which aspects of product data can be specified. The language is called EXPRESS.This part of ISO 10303 also defines a graphical representation for a subset of the constructs in the EXPRESS language. This graphical representation is called EXPRESS-G.EXPRESS is a data specification language as defined in ISO 10303-1. It consists of language elements which allow an unambiguous data definition and specification of constraints on the data defined.The following are within the scope:— data types;— constraints on instances of the data types.The following are outside the scope of this part of ISO 10303:— definition of database formats;— definition of file formats;— definition of transfer formats;— process control;— information processing;— exception handling.EXPRESS is not a programming language.
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