ISO 10303-1213:2005 specifies the application module for Reference data library.

The following are within the scope of ISO 10303-1213:2005:

• a library of classes of product and their composition, connection, and containment relationships;
• a library of classes of activity and their composition, connection and involvement relationships with classes of product, document, organization and person;
• properties that are possessed by all members of a class of product or activity;
• a library of symbols that can stand for classes of product, document, organization and person.