This part of prEN 82045 provides a comprehensive set of standardised metadata elements for document management in accordance with Part 1 of prEN 82045. To enable this, a standardised EXPRESS-based information reference model [5] is provided in Annex A. The information reference model is the basis from which the metadata elements are derived. The information reference model also provides a standardised framework for data exchange and a basis for the implementation of a document management system. This document also provides a standardised DTD (Document Type Definition) based on the XML (eXtensible Markup Language) language for the purpose of document exchange, see Annex B. It is directed towards end users of document management systems. The annexes are in addition directed primarily to developers of software for such systems. The document is intended as a general basic resource for all document management application fields. This part of prEN 82045 does not specify physical locations nor arrangements of labels on documents, nor layouts of drawings, documents etc. Physical implementation of the information reference model or exchange formats are not part of this standard. NOTE - Although sometimes closely related to the document management, the following items are outside of scope of this standard: product data management, workflow management, configuration change management, and electronic file management. These items may, however, be referred to as external objects.