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Consultative Committee for Space Data Systems : February 26, 2001: by National Aeronautics and Space Administration

By National Aeronautics and Space Administration

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Book Id: WPLBN0000659489
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Title: Consultative Committee for Space Data Systems : February 26, 2001: by National Aeronautics and Space Administration  
Author: National Aeronautics and Space Administration
Volume:
Language: English
Subject: Government publications, National Aeronautics and Space Administration (U.S.), NASA reference publication
Collections: NASA Publication Collection
Historic
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Publisher: National Aeronautics and Space Administration Publication

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And Space Administration, N. A. (n.d.). Consultative Committee for Space Data Systems : February 26, 2001. Retrieved from http://worldlibrary.org/


Excerpt
Purpose and Scope: The purpose of this document is to define the ISO Reference Model for an Open Archival Information System (OAIS). An OAIS is an archive, consisting of an organization of people and systems that has accepted the responsibility to preserve information and make it available for a Designated Community. It meets a set of such responsibilities as defined in this document and this allows an OAIS archive to be distinguished from other uses of the term ?archive?. The term ?Open? in OAIS is used to imply that this Recommendation and future related Recommendations and standards are developed in open forums, and it does not imply that access to the archive is unrestricted. The information being maintained has been deemed to need Long Term Preservation, even if the OAIS itself is not permanent. Long Term is long enough to be concerned with the impacts of changing technologies, including support for new media and data formats, or with a changing user community. Long Term may extend indefinitely. In this reference model there is a particular focus on digital information, both as the primary forms of information held and as supporting information for both digitally and physically archived materials. Therefore, the model accommodates information that is inherently non-digital (e.g., a physical sample), but the modeling and preservation of such information is not addressed in detail. This reference model: provides a framework for the understanding and increased awareness of archival concepts needed for Long Term digital information preservation and access...

Table of Contents
CONTENTS (continued) Figure Page Figure 2-1: Environment Model of an OAIS .............................................................................. 2-2 2-1 Environment Model of an OAIS .......................................................................................... 2-2 Figure 2-2: Obtaining Information from Data ............................................................................. 2-4 2-2 Obtaining Information from Data ......................................................................................... 2-4 Figure 2-3: Information Package Concepts and Relationships ................................................... 2-5 2-3 Information Package Concepts and Relationships ............................................................... 2-5 Figure 2-4: OAIS Archive External Data Flows ......................................................................... 2-8 2-4 OAIS Archive External Data Flows ..................................................................................... 2-8 Figure 4-1: OAIS Functional Entities ......................................................................................... 4-2 4-1 OAIS Functional Entities ..................................................................................................... 4-2 Figure 4-2: Functions of Ingest ...................................................................................................4-5 4-2 Functions of Ingest ...............................................................................................................4-5 Figure 4-3: Functions of Archival Storage..................................................................................4-7 4-3 Functions of Archival Storage..............................................................................................4-7 Figure 4-4: Functions of Data Management................................................................................4-9 4-4 Functions of Data Management ...........................................................................................4-9 Figure 4-5: Functions of Administration...................................... Error! Bookmark not defined. 4-5 Functions of Administration...............................................................................................4-10 Figure 4-6: Functions of Preservation Planning........................................................................4-13 4-6 Functions of Access ...........................................................................................................4-13 4-6 Functions of Access ...........................................................................................................4-15 Figure 4-8: OAIS Data Flow Diagram ......................................................................................4-17 4-7 OAIS Data Flow Diagram..................................................................................................4-17 Figure 4-9: Administration Context Diagram ...........................................................................4-17 4-8 Administration Context Diagram.......................................................................................4-17 Figure 4-9: Information Object .................................................................................................4-19 4-9 Information Object .............................................................................................................4-19 Figure 4-10: Representation Information Object ......................................................................4-21 4-10 Representation Information Object ....................................................................................4-21 Figure 4-11: Representation Network Object Model ................... Error! Bookmark not defined. 4-11 Representation Network Object Model................................. Error! Bookmark not defined. Figure 4-12: Example Representation Network........................... Error! Bookmark not defined. 4-12 Example Representation Network......................................... Error! Bookmark not defined. Figure 4-13: Information Object Taxonomy.............................................................................4-26 4-13 Information Object Taxonomy...........................................................................................4-26 Figure 4-14: Information Package Contents..............................................................................4-33 4-14 Information Package Contents ...........................................................................................4-33 Figure 4-15: Information Package Taxonomy...........................................................................4-34 4-15 Information Package Taxonomy ........................................................................................4-34 Figure 4-16: Archival Information Package (AIP)....................................................................4-35 4-16 Archival Information Package (AIP)..................................................................................4-35 Figure 4-17: PDI Preservation Description Information ...........................................................4-36 4-17 PDI Preservation Description Information.........................................................................4-36

 

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