ISO/TS 10303-1293:2005 specifies the application module for AP239 part definition information, in particular:

• representation of the data that identify parts and their versions;
• representation of characterization views of a version of a part;
• representation of parts, their versions, their definitions, and their management information, such as dates, that are assigned to them;
• representation of alias identifications assigned to product data;
• representation of the data that identify a product and the categories of products it belongs to;
• representation of the data that designate a version of a product;
• representation of characterization views of a product version;
• representation of relationships between versions of products;
• representation of assignments of an identifier to product data;
• representation and classification of documents and document information that may apply to part definition information;
• representation of properties of objects, their values and types, and classifications;
• representation of information that records the identification of an existing or potential future artifact - an actual product whose properties can only be known by observation or by derivation from observations;
• representation of interfaces between products;
• representation of the life cycle phase of existing interfaces between actual products (as realized), and includes planned interfaces between planned products;
• representation of relationships between requirements and items to which they are assigned, and between requirements and the items which are their source;
• representation of the information that identify a requirement and versions of requirements;
• representation of characterization views of a requirement version;
• representation of relationships between requirements which are expressed as relationships between requirement view definitions;
• representation of a type of state;
• representation of state observed.