Workbook on Digital Private Papers > Administrative and preservation metadata > Persistent identifiers
Persistent identifiers
Why uniquely identify?
- To enable users to retrieve objects without knowing their location.
- To enable repositories to change the location of objects internally.
- To enable repositories to share objects with other services where appropriate.
- To enable researchers to cite objects consistently over time.
- To enable repositories to associate entities unambiguously (one to many, many to one or one to one):
- Objects with objects.
- Metadata with objects.
