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					Preservation metadata and
    the Cedars project
             Michael Day
    UKOLN: UK Office for Library and
        Information Networking
          University of Bath
          http://www.ukoln.ac.uk/
             m.day@ukoln.ac.uk

       Metadata for Long-Term Preservation in NEDLIB
  Bibliothèque nationale de France, Paris, 25 February 2000
Presentation Outline
    • The UK context
    • The Cedars project
      – Aims and objectives
      – Relationship with the OAIS model
      – The Cedars outline metadata specification
    • A JISC/NSF funded project about
      emulation strategies (CAMiLEON)




2        NEDLIB Workshop, Paris, 25 February 2000
The UK Context
CPA/RLG Task Force on the Archiving of
Digital Information (1996)
     – UK response co-ordinated by the Joint
       Information Systems Committee, the
       British Library and the National
       Preservation Office.
        – Warwick strategy workshops (1995, 1999)
        – Digital Archiving Working Group
        – Digital Preservation Focus
Public Record Office
        – Electronic Records in Office Systems (EROS)
        – National Digital Archive of Datasets (NDAD)

3       NEDLIB Workshop, Paris, 25 February 2000
Cedars - CURL exemplars in
     digital archives




 4    NEDLIB Workshop, Paris, 25 February 2000
Cedars project (1)
Consortium of University Research
Libraries (CURL)
     – interested in the roles and responsibilities
       of research libraries with regard to digital
       preservation.
JISC eLib Phase 3
     – “Hybrid Libraries, Large Scale Resource
       Discovery and Digital Preservation”
Cedars project
     – funded by JISC through the CURL
       libraries from April 1998 for 3 years

5       NEDLIB Workshop, Paris, 25 February 2000
Cedars project (2)
A CURL project led by the universities of
Cambridge, Leeds and Oxford
      – Mixture of libraries and computing
        services
      – Three broad groups:
         – Data preservation strategies (Leeds)
         – Content issues (Cambridge)
         – Access issues - metadata (Oxford)
In collaboration with:
         – Arts and Humanities Data Service, British
           Library, National Preservation Office, Research
           Libraries Group, UKOLN, publishers, etc.

6        NEDLIB Workshop, Paris, 25 February 2000
Cedars project (3)
Objectives:
  • To promote awareness
  • To identify and disseminate
       – appropriate strategies for collection
         management
       – appropriate strategies for long-term
         preservation
    • Based on a realistic sampling of
      current digital resource collections



7         NEDLIB Workshop, Paris, 25 February 2000
Cedars metadata review (1)
Metadata for preservation (AIW01)
     – Produced by UKOLN (August 1998)
     – Identified and reviewed relevant projects and
       associated issues
        –   The OAIS Model
        –   PANDORA
        –   The Pittsburgh Project
        –   RLG Working Group


http://www.ukoln.ac.uk/metadata/cedars/AIW01.html




8        NEDLIB Workshop, Paris, 25 February 2000
Cedars metadata review (2)
Four main types of metadata:
     – Technical metadata
        – Recording technical details about the original
          hardware and software environment to support
          preservation strategies
     – Rights management metadata
        – Recording intellectual property rights
          ownership, deposit agreements, etc.
     – Intellectual preservation metadata
        – Preserving integrity and authenticity
     – Resource discovery metadata



9       NEDLIB Workshop, Paris, 25 February 2000
The OAIS model (1)
ISO Reference Model for an Open Archival
Information System (OAIS):
     – Consultative Committee on Space Data
       Systems (CCSDS)
     – Draft Recommendation (May 1999)
        – Establishes a common framework of terms and
          concepts which comprise an OAIS
        – Facilitates the description and comparison of
          archives
        – A basis for further standardisation
        – A basis for conformance



10      NEDLIB Workshop, Paris, 25 February 2000
          The OAIS model (2)


                   Descriptive         Data        Descriptive
                      info.         Management        info.

                                                                      requests
P              Ingest                                                               C
                                                                      other info.
R   SIP                                                      Access                 O
O                                                                                   N
                        AIP
D                                  Archival                            DIP          S
U                                  Storage        AIP                               U
C                                                                                   M
E                                                                                   E
R                                Administration
                                                                                    R



                                 MANAGEMENT



          11         NEDLIB Workshop, Paris, 25 February 2000
Information Packages
Archival Information Package (AIP):
     – Content Information
        – The information that is the primary object of
          preservation. Containing a Digital Object and
          any Representation Information (technical
          metadata) needed to transform this object into
          meaningful information
     – Preservation Description Information (PDI)
        – other information (metadata) “which will allow
          the understanding of the Content Information
          over an indefinite period of time”
        – Terms defined in CPA/RLG report



12      NEDLIB Workshop, Paris, 25 February 2000
Preservation Description
Information

                               Preservation
                               Description
                               Information




      Reference       Provenance          Context            Fixity
     Information      Information       Information       Information




13             NEDLIB Workshop, Paris, 25 February 2000
Cedars and OAIS
The Cedars project ...
     – has adopted the OAIS taxonomy as a
       means of thinking about metadata and for
       the preliminary structure of the draft
       outline specification of preservation
       metadata
     – the data preservation strategies group has
       developed a model based on OAIS and
       outlined a “blueprint for Representation
       Information”.
http://gps0.leeds.ac.uk/~ecldh/cedars/
nasa2000/nasa2000.html


14       NEDLIB Workshop, Paris, 25 February 2000
Cedars metadata (1)
Process:
   • Elements identified from selected
     initiatives described in metadata
     review
   • Initial draft, structured according to
     OAIS taxonomy (February 1999)
   • Extended debate about the role of
     OAIS
   • First review draft (December 1999)


15       NEDLIB Workshop, Paris, 25 February 2000
Cedars metadata (2)
Reference Information
  • Resource Description
     – Title, Creator, etc.
  • Reference labels
  • Existing metadata
Context Information
  • Reason for Preservation
  • Related Information Objects



16       NEDLIB Workshop, Paris, 25 February 2000
Cedars metadata (3)
Provenance Information
   • History of Origin
   • Management History
   • Use History
   • Known Operating Environments
   • Rights Management
Fixity Information
   • Checksum



17      NEDLIB Workshop, Paris, 25 February 2000
Cedars metadata (4)
Future developments:
  • Initial draft specification
        – Most comments have now been received
        – Generally favourable response
        – Some serious issues that need to be
          addressed
     • Revised draft specification
        – For public consultation (from April)
     • Final project deliverable
        – Due June 2000

18         NEDLIB Workshop, Paris, 25 February 2000
CAMiLEON project
Emulation Options for Digital Preservation
  • JISC/NSF International Digital
    Libraries Programme
        – University of Michigan
        – University of Leeds (Cedars)
     • Testing emulation strategies for digital
       preservation
     • Now called: CAMiLEON
        – Creative Archiving at Michigan and Leeds:
          Emulating the Old on the New


19         NEDLIB Workshop, Paris, 25 February 2000
Conclusions
For the project:
      – How successful has Cedars been when
        compared with its aims and objectives?
         – e.g., the production of best practice guidelines
           for metadata
      – What will Cedars be able to demonstrate?
      – Will this lead to the development of digital
        preservation services?
For OAIS:
      – Terminology not widely understood
      – Need to know more about how it interacts
        with other models
20       NEDLIB Workshop, Paris, 25 February 2000
Web pages
Cedars Web pages:
http://www.leeds.ac.uk/cedars/


UKOLN Metadata Web pages:
http://www.ukoln.ac.uk/metadata/


OAIS Model:
http://ssdoo.gsfc.nasa.gov/nost/isoas/
ref_model.html



21     NEDLIB Workshop, Paris, 25 February 2000
UKOLN
UKOLN is funded by the Library and Information
Commission (formerly the British Library Research
and Innovation Centre), the Joint Information
Systems Committee (JISC) of the UK Higher
Education Funding Councils, as well as by project
funding from the JISC’s Electronic Libraries (eLib)
Programme and the European Union. UKOLN also
receives support from the University of Bath, where
it is based.

http://www.ukoln.ac.uk/



22        NEDLIB Workshop, Paris, 25 February 2000

				
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