Workbook on Digital Private Papers > Administrative and preservation metadata > Preservation metadata

Preservation metadata

Connecting entities

It is useful to be aware of the linking mechanisms in PREMIS. Connections between the various PREMIS entities can be made using identifiers in the following ways:

Objects

Linking objects to Intellectual Entities Via object entity's <linkingIntellectualEntityIdentifier>.
Linking objects to events Objects and events can be linked both ways.
  • Via object entity's <relationship><relatedEventIdentification>; used for connecting objects that are related by an event, such as a migration that created a derivation of an object.
  • Via object entity's <linkingEventIdentifier>; used to record simple events which do not create new objects, e.g. virus check.
  • Via event's optional <linkingObjectIdentifier>.
Linking objects to agents Indirectly via event entity's <linkingAgentIdentifier>.
Linking objects to rights Via object entity's <linkingPermissionStatementIdentifier>.

Events

Linking events to Intellectual Entities Indirectly, via object entity's <linkingIntellectualEntityIdentifier>.
Linking events to objects Events and objects can be linked both ways.
  • Via object entity's optional <relationship><relatedEventIdentification>; used for connecting objects that are related by an event, such as a migration that created a derivation of an object.
  • Via object entity's <linkingEventIdentifier>; used for recording simple events, which do not create new objects.
  • Via event's optional <linkingObjectIdentifier>.
Linking events to agents Via event entity's <linkingAgentIdentifier>.
Linking events to rights Indirectly via object entity's <linkingPermissionStatementIdentifier>.

Agents

Linking agents to Intellectual Entities Indirectly. The object entity's <linkingIntellectualEntityIdentifier> links to Intellectual Entities, and objects can be linked to events, and events can in turn link to agents.
Linking agents to objects Indirectly. Objects can be linked to events, and events can in turn link to agents.
Linking agents to events Via event entity's <linkingAgentIdentifier>.
Linking agents to rights Indirectly. The object entity's <linkingPermissionStatementIdentifier> links to the rights entity, and objects can be linked to events, and events can in turn link to agents.

Rights

Linking rights to Intellectual Entities Indirectly via the object entity's <linkingIntellectualEntityIdentifier>.
Linking rights to objects Via the rights entity's <linkingObject> and/or via the object entity's <linkingPermissionStatementIdentifier>.
Linking rights to events Indirectly, via the object entity's relationship(s) with the event entity.
Linking rights to agents Indirectly via the object entity's relationship with the event entity which can link to agent using <linkingAgentIdentifier>.