OAISarkkitehtuuri

OAISarkkitehtuuri, or the Open Archival Information System reference model, is a conceptual framework for long-term digital preservation. It provides a standardized way to think about the processes and components involved in managing and preserving digital objects over time. The OAIS model is not a specific software implementation but rather a set of recommendations and definitions that guide the design and operation of digital archives.

The core of the OAIS model is the concept of a designated community, which is the group of users for whom the digital object is preserved and understandable. The model defines several key functional entities: Ingest, Data Management, Archival Storage, Access, Administration, and Preservation Planning. These entities work together to ensure that digital information remains accessible and usable for its intended audience, even as technologies evolve and data formats become obsolete.

The Ingest function handles the submission of digital objects into the archive. Data Management is responsible for organizing and maintaining the information within the archive, including metadata. Archival Storage is where the digital objects are physically stored. The Access function provides a means for users to retrieve and use the archived information. Administration manages the overall operation of the archive, and Preservation Planning focuses on the long-term strategies for maintaining the integrity and accessibility of the digital objects. By adhering to the OAIS model, organizations can build more robust and effective digital preservation systems.