ISO/TS 10303-1779:2008 specifies the application module for External representation item.
The following are within the scope of ISO/TS 10303-1779:2008:
- definition of an element of a representation whose value is not included in the data exchange file and is defined in an external dictionary;
- items within the scope of application module External library, ISO/TS 10303-1778;
- items within the scope of application module Foundation representation, ISO/TS 10303-1006.