How many entities does PREMIS data model has?

The Correct answer is Five.

Key Points

• PREMIS, which stands for "PREservation Metadata: Implementation Strategies," was an international working group sponsored by OCLC and RLG from 2003 to 2005.
• The group developed the PREMIS Data Dictionary for Preservation Metadata, providing both a data dictionary and narrative guidance on preservation metadata.
• The second version of this report was issued in March 2008, with the Library of Congress maintaining a schema for representing PREMIS in XML.
• The PREMIS data model defines five key entities:
  • Intellectual Entities: These represent the conceptual or logical content to be preserved, such as a digital collection, dataset, or work. They are the highest-level concept in preservation.
  • Objects: These are the actual digital representations (files or bitstreams) stored and managed for preservation.
  • Events: These actions or processes (such as creation, migration, or format transformation) are crucial for maintaining the integrity of digital objects over time.
  • Rights: This entity covers the intellectual property rights and access control associated with digital objects to ensure proper management and protection.
  • Agents: These represent individuals or organizations responsible for the creation, management, or preservation of digital objects, including software tools used for processing or migrating data.