input: [0] Reference Model for an Open Archival Information System (OAIS), by the Space Data Systems, Consultative Committee. [1] January 2002 [3] This document is a technical recommendation for use in developing a broader consensus on what is required for an archive to provide permanent or indefinite long-term preservation of digital information. The recommendation establishes a common framework of terms and concepts which comprise an Open Archival Information System (OAIS). It allows existing and future archives to be more meaningfully compared and contrasted. It provides a basis for further standardization within an archival context and it should promote greater vendor awareness of, and support of, archival requirements. Through the process of normal evolution, it is expected that expansion, deletion, or modification of this document may occur. This Recommendation is therefore subject to CCSDS document management and change control procedures which are defined in Procedures Manual for the Consultative Committee for Space Data Systems. [2] 
output: http://public.ccsds.org/publications/archive/650x0b1.PDF#