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Reference Model for an Open Archival Information System (OAIS). OAIS:. 'Open'. 'Information'. 'Archival Information System'. An OAIS archive: … preserve information for access and use by a designated community.
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Reference Model for an Open Archival Information System (OAIS)
OAIS: 'Open' 'Information' 'Archival Information System'
An OAIS archive: … preserve information for access and use by a designated community. … includes archives that have to keep up with steady input streams of information as well as those that experience primarily aperiodic inputs. … includes archives that provide a wide variety of sophisticated access services as well as those that support only the simplest types of requests.
The Concept of an Information Package - Provenance - Context - Reference - Fixity - Content Data Object (Physical Object or Digital Object, i.e., bits) - Representation Information
A high-level view of the interaction between the entities identified in the OAIS environment
Functional Model SIP=Submission Information Packages AIP=Archival Information Packages DIP=Dissemination Information Packages
PRESERVATION PERSPECTIVES Information Preservation Digital Migration four primary digital migration types: - Refreshment - Replication - Repackaging - Transformation
PRESERVATION PERSPECTIVES Access Service Preservation … Application Programming Interface (API) maintained by the OAIS as Access Software … "look and feel" of the Content Information of a set of Archival Information Units
Selected OAIS Usage Examples • InterPARES • Body of National Archives from many countries, adopted OAIS as a starting point for their modeling work • France set up a working group within ARISTOTE • interested in archive of digital information, including libraries and Dept of Justice. • http://www.aristote.asso.fr/ (in french) • System for Preservation and Access to Data and Information (SIPAD) • French space agency plasma physics archive used the OAIS as a basis for design • National Space Science Data Center (NSSDC)
Questions? Bibliography: http://www.hki.uni-koeln.de/teach/ss06/DL/material/oais.pdf http://nost.gsfc.nasa.gov/isoas/ http://nost.gsfc.nasa.gov/isoas/presentations/oais_tutorial_200306.ppt