This International Standard specifies the data fields used in the title blocks and headers of technical product documents. Its purpose is to facilitate the exchange of documents and ensure compatibility by defining field names, their contents and their length (number of characters). It covers manual as well as computer-based design work, and is applicable to all kinds of documents for all kind of products — in all phases of the product life cycle and all fields of engineering. It contains document-management-relevant data fields but not fields for specific technology areas or product requirements. It supports the cross-use and re-use of documents.