Data migration
There is a difference between data migration and data integration activities. Data migration is a project by means of which data will be moved or copied from one environment to another, and removed or decommissioned in the source. During the migration (which can take place over months or even years), data can flow in multiple directions, and there may be multiple migrations taking place simultaneously. The ETL (extract, transform, load) actions will be necessary, although the means of achieving these may not be those traditionally associated with the ETL acronym.
UVC-based preservation
Preservation of digital resources is of a paramount importance for deposit libraries, research libraries, archives, government agencies, and actually most organizations. The dominant approach to digital preservation is migration. Migration entails making periodic transformations of archived information into new logical formats as their native formats, or the software or hardware on which they depend becomes obsolete. The notable danger of migration is data loss, and possible loss of original functionality or the ‘look and feel’ of the original format. Furthermore, digital migrations are time consuming and costly as the process requires converting the format of every document, in addition to copying converted bit streams to new media as necessary.