The Colectica Repository may be designated as the authoritative source for one or more agencies. An agency is an entity responsible for a particular piece of data or metadata, and corresponds to the registration authority identifier (RAI) of an 11179 international registration data identifier (IRDI). The repository can also host read-only copies of items for which it is not authoritative. This allows for a complete copy of all metadata being located in the repository even if it references external resources.
Colectica DDI Resolver can be used to discover the authoritative repository for a particular agency.