This collection is a standard for the exchange of product model data (STEP) module and resource library (SMRL). It is intended for those who are considering adopting ISO 10303 modular application protocols, application modules, and resource parts, or systems built on them, for product data representation …
Reference number
ISO 10303-11:2004
ISO 10303-11:2004
© ISO 2024
International Standard
ISO 10303-11:2004
Industrial automation systems and integration — Product data representation and exchange — Part 11: Description methods: The EXPRESS language reference manual
Edition 2
2004-11
2004-11
ISO 10303-11:2004
38047
Published
(Edition 2, 2004)
This publication was last reviewed and confirmed in 2019.
Therefore this version remains current.
Abstract
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.
General information
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Status: PublishedPublication date: 2004-11Stage: International Standard under systematic review [90.20]
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Edition: 2Number of pages: 255
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Technical Committee :ISO/TC 184/SC 4ICS :25.040.40
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Life cycle
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Previously
WithdrawnISO 10303-11:1994
WithdrawnISO 10303-11:1994/Cor 1:1999
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Now