DEVELOPING AN ISO REFERENCE MODEL FOR AN OPEN ARCHIVAL INFORMATION SYSTEM OAIS Presentation to Socie

1
Next Generation SFDUs Don Sawyer/NASA/GSFC Lou
Reich/CSC John Garrett/Raytheon ITSS November
9, 1999
2
Bit of History

• Compound Objects Concepts and Requirements Paper
• Steve Smith, June 1996
• Templates for LVO collections
• Relationships among LVOs
• Catalog Object for LVO collection
• Identification of multiple encodings
  (compression,etc)
• No additional P2 work has been done specifically
  to address these issues
• NSSDC/NASA migration effort is identifying
  related requirements
• Identification of multiple encodings (tar, gzip)
• Describe presence and formats of multiple objects
  that have been put into a tar (for example)
  container
• Provide a universal identifier for an archival
  package and for its associated descriptions that
  external users can use in obtaining packages and
  description

3
How to proceed?

• Do other agencies have data packaging needs?
• New Technology Considerations
• XML
• Good for character data
• Will large binary data handling be adequate to
  replace SFDU labeling?
• What will be the support for identifiers like
  ADIDs?
• How will registration capabilities evolve?
• Java
• Identify LVO services (standard data objects?)
• XSIL
• Scientific Interchange Language
• Very SFDU like