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ISO 10303-11:2004

Industrial automation systems and integration — Product data representation and exchange — Part 11: Description methods: The EXPRESS language reference manual

Nov 10, 2004

General information

90.93     Jun 23, 2025

ISO

ISO/TC 184/SC 4

International Standard

25.040.40  

English  

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Published

Language in which you want to receive the document.

Scope

ISO 10303 specifies a language by which aspects of product data can be defined. The language is called EXPRESS. ISO 10303-11:2004 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 ISO 10303-11:2004:
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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 10303-11:1994

ABANDON
ISO 10303-11:1994/DAmd 1

WITHDRAWN
ISO 10303-11:1994/Cor 1:1999

NOW

PUBLISHED
ISO 10303-11:2004
90.93 Standard confirmed
Jun 23, 2025