Tilmes, Curt

NASA Technical Reports Server

Preservation Strategies:  
Intro to the OAIS Reference Model 
Curt Tilmes 
NASA 
Version 1.0 
Review Date 
https://ntrs.nasa.gov/search.jsp?R=20120009094 2019-08-30T20:28:35+00:00Z
Preservation Strategies: Intro to the OAIS Reference Model; Version 1.0, Reviewed ??/??/?? 
Overview 
• The Reference Model for an Open Archival Information 
System (OAIS) provides a framework of concepts and 
terminology for describing the architecture of archives 
intended for long term preservation of digital information. 
• This course model provides a brief introduction.  
 
Preservation Strategies: Intro to the OAIS Reference Model; Version 1.0, Reviewed ??/??/?? 
Relevance to Data Management  
• Archives intended for long term preservation have many 
common requirements, some which may not be 
immediately obvious.  The OAIS-RM gives a good common 
understanding of those shared requirements. 
• The OAIS-RM also provides a generic high level 
architecture that depicts an approach to accomplishing 
those requirements. 
• Your system should have analogous components that can 
map to the RM concepts.  The RM terminology is widely 
used to describe the purpose and use of those components. 
Preservation Strategies: Intro to the OAIS Reference Model; Version 1.0, Reviewed ??/??/?? 
OAIS overview 
Preservation Strategies: Intro to the OAIS Reference Model; Version 1.0, Reviewed ??/??/?? 
OAIS External data flow 
Preservation Strategies: Intro to the OAIS Reference Model; Version 1.0, Reviewed ??/??/?? 
Information Packaging 
• Preservation Description 
Information: 
• Provenance – Source of Content; 
Who had custody; History 
• Context – How the Content relates 
to external information. 
• Reference – Identifiers for the 
Content 
• Fixity – Protection from alteration or 
corruption, such as Checksum or 
Digital Signature 
Preservation Strategies: Intro to the OAIS Reference Model; Version 1.0, Reviewed ??/??/?? 
OAIS Functional Entities 
Preservation Strategies: Intro to the OAIS Reference Model; Version 1.0, Reviewed ??/??/?? 
References and Resources 
• Reference Model for an Open Archival Information System 
(OAIS). CCSDS 650.0-B-1, Blue Book, January 2002. 
  http://public.ccsds.org/publications/archive/650x0b1.pdf 
 
• Also known as ISO14721:2003. 
 
• Draft revision under review: CCSDS 650.0-P-1.1 (Pink 
Book) Issue 1.1 August 2009. 
 
Preservation Strategies: Intro to the OAIS Reference Model; Version 1.0, Reviewed ??/??/?? 
Other Relevant Modules 
• Data identifiers and locators 
• File naming conventions 
• Using self-describing data formats 
• Recording provenance and context 
• Metadata for {discovery; access and use; archiving} 


Preservation Strategies: Intro to the OAIS Reference Model

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