PREMIS (Preservation Metadata, Data Dictionary Maintenance Activity)
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PREMIS OWL Ontology

As a standard for preservation metadata, PREMIS is based on a data model that defines the entities that are described (Objects, Events, Agents and Rights), the properties of those entities (semantic units), and relationships between them. 

The PREMIS OWL ontology provides an RDF encoding of that data model to provide a Linked Data-friendly data management function for a preservation repository, allowing for SPARQL querying.  It integrates PREMIS information with other Linked Data compliant data sets, such as format registries and controlled vocabularies, allowing interconnections between different repository databases. 

Version 1 of the ontology is based on the PREMIS Data Dictionary version 2.2. It is in the process of being revised based on version 3, a major update of the PREMIS data model and Data Dictionary. The revision is substantially remodeling it, incorporating emerging Linked Data best practices and connections to other relevant RDF ontologies, e.g PROV (Provenance ontology), Open Digital Rights Language (ODRL), the Portland Common Data Model (PCDM), and others. It is expected that a draft for review will be available in late 2017.

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