1. 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

2. NEDLIB Workshop, Paris, 25 February 2000 2 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)

3. NEDLIB Workshop, Paris, 25 February 2000 3 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)

4. NEDLIB Workshop, Paris, 25 February 2000 4 Cedars - CURL exemplars in digital archives

5. NEDLIB Workshop, Paris, 25 February 2000 5 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

6. NEDLIB Workshop, Paris, 25 February 2000 6 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.

7. NEDLIB Workshop, Paris, 25 February 2000 7 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

8. NEDLIB Workshop, Paris, 25 February 2000 8 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

9. NEDLIB Workshop, Paris, 25 February 2000 9 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

10. NEDLIB Workshop, Paris, 25 February 2000 10 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

11. NEDLIB Workshop, Paris, 25 February 2000 11 The OAIS model (2) Administration Ingest Archival Storage Access Data Management Descriptive info. AIP PRODUCERPRODUCER CONSUMERCONSUMER SIP DIP MANAGEMENT requests other info. Descriptive info.

12. NEDLIB Workshop, Paris, 25 February 2000 12 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

13. NEDLIB Workshop, Paris, 25 February 2000 13 Preservation Description Information Preservation Description Information Reference Information Provenance Information Context Information Fixity Information

14. NEDLIB Workshop, Paris, 25 February 2000 14 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

15. NEDLIB Workshop, Paris, 25 February 2000 15 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)

16. NEDLIB Workshop, Paris, 25 February 2000 16 Cedars metadata (2) Reference Information Resource Description –Title, Creator, etc. Reference labels Existing metadata Context Information Reason for Preservation Related Information Objects

17. NEDLIB Workshop, Paris, 25 February 2000 17 Cedars metadata (3) Provenance Information History of Origin Management History Use History Known Operating Environments Rights Management Fixity Information Checksum

18. NEDLIB Workshop, Paris, 25 February 2000 18 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

19. NEDLIB Workshop, Paris, 25 February 2000 19 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

20. NEDLIB Workshop, Paris, 25 February 2000 20 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

21. NEDLIB Workshop, Paris, 25 February 2000 21 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

22. NEDLIB Workshop, Paris, 25 February 2000 22 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/