Repository models: from experimentation to services


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The presentation was given at the Delos Summer School (Tirrenia, June 2008). This presentation provides an overview of digital repositories, looking at different repository types and dividing them by content type, coverage, functionality and target user group. It concludes with two group exercises, one writing a use case for a web archiving project and the other a business case for sustained funding for an Institutional Repository beyond its start-up phase, to help apply knowledge to real-world situations.

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  • Repository models: from experimentation to services

    1. 1. Repository models: from experimentation to services Stephen Grace Centre for e-Research
    2. 2. What is a repository? <ul><li>Content is deposited in a repository, whether by the content creator, owner or third party </li></ul><ul><li>Repository architecture manages content as well as metadata </li></ul><ul><li>Repository offers a minimum set of basic services (put, get, search, access control) </li></ul><ul><li>Repository must be sustainable and trusted, well-supported and well-managed </li></ul><ul><li>Heery and Anderson, Digital repositories review 2005 </li></ul>
    3. 3. Open Access repositories <ul><li>Repository must provide open access to its content (unless there are legal constraints) </li></ul><ul><li>Repository must provide open access to its metadata for harvesting </li></ul><ul><li>Not all repositories are OA repositories </li></ul>
    4. 4. Core requirements for digital archives -1 <ul><li>Commitment to digital object maintenance </li></ul><ul><li>Organisational fitness </li></ul><ul><li>Legal and contractual rights </li></ul><ul><li>Effective and efficient policies </li></ul><ul><li>Acquisition and ingest criteria </li></ul>
    5. 5. Core requirements for digital archives -2 <ul><li>Integrity, authenticity and usability </li></ul><ul><li>Provenance </li></ul><ul><li>Dissemination </li></ul><ul><li>Preservation planning and action </li></ul><ul><li>Adequate technical infrastructure </li></ul><ul><li>CRL/DCC/DPE/nestor 2007 </li></ul>
    6. 6. Motivations for establishing repositories <ul><li>Enhanced access to resources </li></ul><ul><li>New modes of publication and peer review </li></ul><ul><li>Corporate information management </li></ul><ul><li>Data sharing </li></ul><ul><li>Preservation of digital resources </li></ul><ul><li>External pressure </li></ul>
    7. 7. Context <ul><li>Wider information environment </li></ul><ul><li>Corporate management systems </li></ul><ul><li>Content creation workflows </li></ul><ul><li>Personal information environment of users </li></ul><ul><li>Services built on repository content </li></ul>
    8. 8. Types of repositories <ul><li>By content type </li></ul><ul><li>By coverage </li></ul><ul><li>By functionality </li></ul><ul><li>By target user group </li></ul>
    9. 9. Content types <ul><li>Raw research data </li></ul><ul><li>Derived research data </li></ul><ul><li>Pre-prints </li></ul><ul><li>Post-prints </li></ul><ul><li>E-theses </li></ul><ul><li>Technical reports </li></ul><ul><li>Learning objects </li></ul><ul><li>Corporate records </li></ul>
    10. 10. Coverage <ul><li>Personal (author’s personal archive) </li></ul><ul><li>Journal (single or group) </li></ul><ul><li>Departmental </li></ul><ul><li>Institutional [IR] </li></ul><ul><li>Inter-institutional (regional, collaborative, economies of scale) </li></ul><ul><li>National </li></ul><ul><li>international </li></ul>
    11. 11. Functionality <ul><li>Enhanced access to resources (resource discovery) </li></ul><ul><li>Subject access to resources </li></ul><ul><li>New modes of dissemination </li></ul><ul><li>Institutional asset management </li></ul><ul><li>Sharing and re-use of resources </li></ul><ul><li>Digital preservation </li></ul>
    12. 12. Target user group <ul><li>Learners </li></ul><ul><li>Teachers </li></ul><ul><li>Researchers </li></ul><ul><li>Administrators </li></ul><ul><li>Regulators </li></ul><ul><li>General public </li></ul><ul><li>Can you think of other user groups served by existing repositories? </li></ul>
    13. 13. OAIS <ul><li>Does a repository have to conform to or otherwise follow OAIS (ISO 14721)? </li></ul>
    14. 14. OAIS Information Model
    15. 15. OAIS Functional Model
    16. 16. A national election is called! <ul><li>Web archiving project </li></ul><ul><li>Dark archive, dissemination issues later </li></ul><ul><li>Rights issues already fixed </li></ul><ul><li>Funding has already been found </li></ul><ul><li>Write a use case </li></ul>
    17. 17. Use case <ul><li>Summary </li></ul><ul><li>Actors and goals – people and what they want to achieve </li></ul><ul><li>Stakeholders and interests </li></ul><ul><li>Main success scenario </li></ul>
    18. 18. Sustaining an Institutional Repository <ul><li>Medium-large university </li></ul><ul><li>Active research and teaching </li></ul><ul><li>Integrated library and IT function </li></ul><ul><li>Start up was externally funded </li></ul><ul><li>Deliver a business case to the Principal </li></ul>
    19. 19. Business case <ul><li>Strategic objectives </li></ul><ul><li>Business need </li></ul><ul><li>Critical success factors </li></ul><ul><li>Stakeholders </li></ul><ul><li>Delivery mechanism </li></ul><ul><li>High-level cost estimate </li></ul><ul><li>Time and resources required </li></ul><ul><li>Risks </li></ul><ul><li>Preferred way forward </li></ul>
    20. 20. Thank you <ul><li>Stephen Grace </li></ul><ul><li>Preservation Manager </li></ul><ul><li>Centre for e-Research </li></ul><ul><li>King’s College London </li></ul><ul><li>[email_address] </li></ul><ul><li>+44 207 848 1972 </li></ul>