Networked Digital Library Of Theses And Dissertations

4,709 views
4,544 views

Published on

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
4,709
On SlideShare
0
From Embeds
0
Number of Embeds
6
Actions
Shares
0
Downloads
16
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Networked Digital Library Of Theses And Dissertations

  1. 1. Networked Digital Library of Theses and Dissertations By Sarah Inglish
  2. 2. Networked Digital Library of Theses and Dissertations (NDLTD) http://www.ndltd.org/ “ (NDLTD) is an international organization dedicated to promoting the adoption, creation, use, dissemination and preservation of electronic analogues to the traditional paper-based theses and dissertations.”
  3. 3. Purpose <ul><li>Allow students to produce electronic documents </li></ul><ul><li>Increase availability of student research </li></ul><ul><li>Electronic preservation </li></ul><ul><li>Lower cost of submitting and handling electronic theses and dissertations (ETD) </li></ul><ul><li>Empower student and universities </li></ul><ul><li>Advance digital library technology </li></ul>
  4. 4. Users and Users needs <ul><li>Users: </li></ul><ul><li>Graduate students and university libraries </li></ul><ul><li>Highly documented </li></ul><ul><ul><li>Software </li></ul></ul><ul><ul><li>Tech support </li></ul></ul><ul><ul><li>Listserve </li></ul></ul><ul><ul><li>NDLTD Committees </li></ul></ul><ul><li>http://www.ndltd.org/documentation </li></ul><ul><li>Users needs: </li></ul><ul><li>Sharing and aiding graduate student research </li></ul><ul><li>Support graduate students in submission of their own ETD </li></ul>
  5. 5. Collection <ul><li>767,186 documents </li></ul><ul><li>In over 50 languages </li></ul><ul><li>(English, Portuguese, German, French & Chinese) </li></ul><ul><li>From 18 countries (USA & Australia) </li></ul><ul><li>In 17 different file formats </li></ul><ul><li>(PDF, XML,, JPEG, QuickTime Video, WAV audio) </li></ul><ul><li>From 90 different source institutions </li></ul><ul><li> (OCLC) (Universities) http://www.ndltd.org/ndltd/find </li></ul>
  6. 6. Archiving ETDs <ul><li>Every 15 minutes back-ups made of not-yet- approved submissions </li></ul><ul><li>Hourly back-ups of newly approved ETDs </li></ul><ul><li>Weekly back-ups of entire ETD collection </li></ul><ul><li>Copies stored on-site and off-site </li></ul>
  7. 7. System Architecture & Functions <ul><li>Protocol involved? </li></ul><ul><ul><li>Open Archives Initiative protocol </li></ul></ul><ul><li>Markup languages? </li></ul><ul><ul><ul><li>SGML and XML </li></ul></ul></ul><ul><ul><ul><li>HyTime extends SGML with architectural forms to allow handling of rich multimedia and hypermedia content </li></ul></ul></ul><ul><ul><ul><li>RDL (Report Definition Language), allows handling of numeric content in an application of XML </li></ul></ul></ul><ul><ul><ul><li>XBRL (Extensible Business Reporting Language) applies XML to business reporting </li></ul></ul></ul><ul><ul><ul><li>MathML for mathematics, or chemical markup language, is used for particular types of content expression </li></ul></ul></ul>
  8. 8. System Architecture and Functions <ul><li>Programming and script languages involved? </li></ul><ul><ul><li>Protocol may be implemented in many ways </li></ul></ul><ul><ul><li>CGI Script (Perl, C++, Java) </li></ul></ul><ul><ul><li>Java Servlet </li></ul></ul><ul><ul><li>PHP </li></ul></ul>
  9. 9. System Architecture and Functions
  10. 10. System Architecture and Functions Data provider Service provider
  11. 11. Metadata <ul><li>ETD-MS Electronic Thesis and </li></ul><ul><li>Dissertation Metadata Standard </li></ul><ul><li>XML encoding for the full text of ETD </li></ul><ul><li>ETD-MS based on Dublin Core (DC) </li></ul><ul><li>Using RDF (Resource Description Framework) </li></ul><ul><li>Using UNICODE </li></ul><ul><li>Specified relationship with MARC </li></ul>
  12. 12. Metadata <ul><li>Also includes additional elements specific to metadata regarding theses and dissertations </li></ul><ul><li>Designed to handle metadata in many languages </li></ul><ul><li>Controlled vocab {Masters, Doctorate} </li></ul><ul><li>ETD-MS provides details on mapping information about ETD to metadata elements </li></ul>
  13. 13. OCLC and ETD-MS <ul><li>Identify thesis and dissertations (TDs) in WorldCat </li></ul><ul><li>Through OAI make available metadata for WorldCat TDs in both Dublin Core (DC) and ETD-MS </li></ul><ul><li>Provide an authority service for personal names for NDLTD </li></ul><ul><li>Coordinate with other authority services such as LC </li></ul>
  14. 14. NDLTD Members & ETD-MS <ul><li>NDLTD members </li></ul><ul><ul><li>Share metadata for their ETDs </li></ul></ul><ul><ul><li>Provide in either ETD-MS </li></ul></ul><ul><ul><li>Eventually needs to be shared in either MARC21 or UNIMARC </li></ul></ul><ul><ul><li>Run OAI, so their metadata can be harvested accordingly </li></ul></ul>
  15. 15. Source of Metadata <ul><li>Information about the context creator (rights, contributors, publisher) </li></ul><ul><li>Information about the content that will help ETD to be found or discovered (coverage, description, title, subject, relationships) </li></ul><ul><li>Information about the resource (formats, system requirements, date, identification) </li></ul><ul><li>Mandatory, optional, and highly recommended MARC record fields </li></ul><ul><li>Students who submit their ETD can choose the subject fields instead of using LC </li></ul>
  16. 16. How users see Metadata <ul><li>Only some key elements of metadata are exposed and is different in many documents </li></ul><ul><li>Title, subject, author, publisher, date, URI </li></ul><ul><li>http://www.ndltd.org/standards/metadata/etd-ms-v1.00-rev2.html#elements </li></ul>
  17. 17. User Interface and Functions <ul><li>http://rogers.vtls.com:6080/visualizer/ (VTLS) </li></ul><ul><li>http://www.ndltd.org/find </li></ul><ul><li>http://www.ndltd.org/serviceproviders/scirus-etd-search (Scirus) </li></ul>
  18. 18. Implementation Issues <ul><li>Interoperability? Interoperability tests among universities and with UMI (user machine interface) to provide integrated services. </li></ul><ul><li>Sustainability? </li></ul><ul><li>Sponsors: Adobe, IBM, Microsoft, NSF, OCLC, SOLINET, SURA, US Dept. of Ed. </li></ul><ul><li>Scalability? </li></ul><ul><li>Does not seem to be an issue. In March 2000 they held 7, 268 ETDs at 25 source institutions and has grown to 767, 186 ETDs from 90 source institutions. </li></ul>
  19. 19. The End <ul><li>Questions or comments? </li></ul><ul><li>Happy St. Patrick's Day! </li></ul>

×