BS ISO 10303-11:1994

This standard BS ISO 10303-11:1994 Industrial automation systems and integration. Product data representation and exchange is classified in these ICS categories:

• 35.040.01 Information coding in general
• 35.240.50 IT applications in industry

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.