Premis is a standard for expressing preservation metadata. This model concerns both those who preserve and those who transmit information to be preserved.

Primarily, it defines a data dictionary useful for describing preservation metadata. It is possible to comply with PREMIS if you use the vocabulary to express metadata, even if you don't use the XML schema proposed. It is possible to use PREMIS as part of METS, as a number of electronic archiving systems publishers are already doing. This standard is hosted and maintained by the Library of Congress.

The PREMIS data dictionary is designed to be independent of any technical implementation issues. However, the PREMIS Editorial Committee provides users with two means of expression:

• an XML schema to express PREMIS in XML
• an OWL ontology for displaying preservation metadata in accordance with semantic web principles.

To access: https: //www.loc.gov/standards/premis/

For more information: http: //www.loc.gov/standards/premis/Understanding-PREMIS_french.pdf