ISO 10303-11
Industrial Automation Systems and Integration - Product Data Representation and Exchange - Part 11: Description Methods: the EXPRESS Language Reference Manual
| Organization: | ISO |
| Publication Date: | 1 November 2004 |
| Status: | active |
| Page Count: | 270 |
| ICS Code (Industrial process measurement and control): | 25.040.40 |
scope:
This part of ISO 10303 specifies a language by which aspects of product data can be defined. The language is called EXPRESS.
This part of ISO 10303 also specifies 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 that allow an unambiguous data definition and specification of constraints on the data defined.
The following are within the scope of this part of ISO 10303:
- 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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