Metadata In Credo Long-Term Archive

In long-term archiving stored resources have to be accompanied by information which enables their searching, helps proper preservation and maintenance, and may be used to examine the correctness of the preservation. This information, called metadata, has to be therefore stored and processed in the archive. This chapter describes metadata preservation and processing in the CREDO archive. The archive stores metadata in archival packages. Since we are dealing with a deep archive, this type of storage is usually off-line, and any access to archived data is slow. To enable effective search and efficient maintenance of the archive, copies of selected metadata are stored also in on-line archive database.