TDR requirement: The repository shall have for each AIP or class of AIPs preserved by the repository an associated definition that is adequate for parsing the AIP and fit for long term preservation needs.

This is necessary to ensure that the AIP and its associated definition, including appropriate Packaging Information, can always be found, processed and managed within the archive

Documentation clearly linking each AIP, or class of AIPs, to its definition.

The repository may use any method for associating the definitions and the AIPs that provides for the continued and continuous linkage of the two entities.

See the APTrust Definition of AIP, particularly the Preservation Description Information section.

See also Bagging specifications for packaging information.