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Developing a Permanent Repository for Digital Objects at Texas State Library

This overview explores the considerations for establishing a permanent repository for digital objects at the Texas State Library and Archives Commission. It reviews the Electronic Publications Repository project background and differentiates between publication repositories and other digital object projects. Key standards in use, preservation metadata, and processes for managing digital objects are discussed, along with insights from national and international libraries. The document also addresses challenges such as format variations, version control, and the integration of various digital projects.

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Developing a Permanent Repository for Digital Objects at Texas State Library

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  1. Building A Repository for Digital Objects Allen Mullen Texas State Library & Archives Commission

  2. Overview • Considerations for Developing a Permanent Repository for Digital Objects • Texas State Library’s Electronic Publications Repository project

  3. Background • Publication Repositories vs. other Digital Object projects • Standards in use

  4. Types of Digital Object projects • Records management preservation • Digital image access/preservation projects • Electronic journal access/preservation projects

  5. Government Publication Repositories • National Library of Australia • NEDLIB • National Library of Canada • GPO and U.S. States

  6. Standards and models • Open Archival Information Systems (OAIS) • Document Object Model • Preservation metadata • XML framework

  7. OAIS • NASA developed; proposed ISO standard • Framework for archive architecture; establishes concepts and processes • Processes: Ingest, Data Management, Archival Storage, Access, and Administration • Data object interpreting Representation Information produces Information Object

  8. Document Object Model • W3C Recommendation for an open standard to dynamically access and update documents • Potential for Preservation - work on basis of collections sharing common characteristics

  9. XML Framework • The Platform and The Content must be “persistent” for preservation • Collection context - “infrastructure independent” platform for data exchange • Presentation context - XML based objects for platform independent migration

  10. Preservation Metadata Standards • National Library of Australia, CEDARS, NEDLIB and Library of Congress • facets - descriptive, access, administrative, technical, legal • OCLC/RLG work

  11. Other considerations • Migration or emulation? • Authenticity • Version control • persistent locator

  12. Texas Government Information Repository • Background • Key considerations • Key decisions • Project progress

  13. Repository Background • Migration of Government Publishing • TRAIL and Dublin Core • Print Publication Depository system

  14. Key Considerations • What to collect? • How to collect? • How to process? • How to store? • How to preserve? • How to access?

  15. Challenges of Publication Framework • Multiple formats for publications • Multiple files comprising single publications • Multiple versions of publications • Relative vs. Dynamic linking • Difficult formats

  16. Key Decisions • Collection Development Policy • Manual harvest • Collections-based processing; conversion to XHTML (or other XML) • Archives and redundant depository • Migration or emulation? • Enhanced Dublin Core

  17. Project progress • Research phase completed • RFIs issued and evaluated • Integration of digital images projects • Purchasing/implementation in Autumn 2001 • Integration via Z39.50 • Future work to be done

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