Janetvilay Dublin Core study


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Examined metadata quality, accuratecy, and interoperability of 3 university library digital collections

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Janetvilay Dublin Core study

  1. 1. Study of Dublin Core Boutsaba Janetvilay Drexel U. - INFO 662 Final Project
  2. 2. Introduction <ul><li>Studied three university library digital collections </li></ul><ul><li>Examined their usage of Dublin Core elements (completeness & accuracy) </li></ul><ul><li>Found factors of flexibility and interoperability problem of collections </li></ul><ul><li>Discovered errors and inconsistency in all three collections </li></ul>
  3. 3. Research questions <ul><li>What DC elements are most commonly used? </li></ul><ul><li>How completely and accurately is Dublin Core used in these three collections? </li></ul><ul><li>How flexible is DC with small local collection? </li></ul><ul><li>Local elements and interoperability? </li></ul>
  4. 4. Methods <ul><li>Three digital collections randomly selected from DC registry </li></ul><ul><li>Selected for their easy to use and university collection criteria </li></ul><ul><li>Examined their use of standards, controlled vocabulary, quality (completeness, accuracy, and consistency </li></ul>
  5. 5. Three digital library collections <ul><li>California Underground Railroad of Sacramento State University Digital Archive http://digital.lib.csus.edu/curr/ </li></ul><ul><li>University of Washington Digital Collections http://content.lib.washington.edu/ </li></ul><ul><li>University of Illinois at Urbana-Champaign – University Library http://images.library.illinois.edu/projects/tdc/ </li></ul>
  6. 6. California Underground Railroad of SSU Digital Archive Item
  7. 7. CURR of SSU Digital Archive <ul><li>Found most incomplete, inaccurate DC metadata used in collection </li></ul><ul><li>Has 9 DC elements and 2 local notes </li></ul><ul><li>In consistency with term used of subject, location names, format, and type </li></ul><ul><li>Interoperability indicated major problem </li></ul>
  8. 8. University of Washington Digital Collections Item
  9. 9. University of Washington Digital Collections <ul><li>Extensive use of local notes </li></ul><ul><li>Indication of complete and consistent </li></ul><ul><li>DC guides and standards statement is provided on the website </li></ul><ul><li>Used Controlled Vocabulary (LCTGM & LCSH) </li></ul>
  10. 10. University of Illinois at Urbana-Champaign Item
  11. 11. University of Illinois at Urbana-Champaign <ul><li>Provided information for instructional use for k-12 teacher </li></ul><ul><li>Heavily emphasize on rights and coverage of DC elements </li></ul><ul><li>10 out of 15 DC elements </li></ul><ul><li>Most complete and consistent </li></ul>
  12. 12. Dublin Core Elements expected to find in collections <ul><li>Title </li></ul><ul><li>Creator </li></ul><ul><li>Subject </li></ul><ul><li>Description </li></ul><ul><li>Publisher </li></ul><ul><li>Contributor </li></ul><ul><li>Date </li></ul><ul><li>Type </li></ul><ul><li>Format </li></ul><ul><li>Identifier </li></ul><ul><li>Source </li></ul><ul><li>Language </li></ul><ul><li>Relation </li></ul><ul><li>Coverage </li></ul><ul><li>Rights </li></ul>
  13. 13. Relevant Elements to DC Local/Social Terms Used as compare to DC or Crosswalk Map DC   CURR UWDC UIUC Title   Title Title Title Creator     Photographer Author/Creator Subject   Keyword Subject (LCSH & LCTGM) Subject/Keywords Description     Physical Description Description Publisher       Collection Publisher Contributor     Contributor   Date   Date Date?Image Date   Type   Resource type Image type/Object Type   Format   Digital Format     Identifier   CURR Identifier Order Number/Image No. Resource Identifier Source   Source   Source Language   Language     Relation       Further Information Coverage     Region/Location Depicted Coverage/Year Rights     Rights Rights Management Statement Local Additions   Notes Notes Interpretation     Digital file Size Digital Collection Lesson Plans/themes Order Information Learning Standards Repository Collection Content dm file name Repository Collection Guide Digital Reproduction Information Contact Information
  14. 14. Interoperability <ul><li>Homegrown metadata as found in “local additions” as part of each digital collection </li></ul><ul><li>Hard to retrieve and harvest without consistent information </li></ul><ul><li>Created silo collection if not able to network with other system (CURR) </li></ul>
  15. 15. Improving use of DC Standards <ul><li>Find ways to weave in local notes to DC elements to avoid existing in silo </li></ul><ul><li>Better understanding of the use of Dublin Core schema and its elements </li></ul><ul><li>Create a system to follow and stick to completing accurate data entry </li></ul>
  16. 16. Usage of DC elements   California Underground Railroad of Sacramento State University University of Washington Digital Collections University of Illinois at Urbana-Champaign Title   22 22  22  Creator 1  15  21  Subject 14  22  21  Description   21  20  Publisher   9  21  Contributor   2    Date 21  14    Type 21  13    Format 19  20    Identifier 21  19  19  Source 22  3 17  Language 22  8    Relation   21  21  Coverage 3  15  22  Rights   2  22 
  17. 17. Findings <ul><li>Total of 66 records examined 22 from each library </li></ul><ul><li>Three most commonly used DC elements are title (66), Identifier (59), Subject (57) </li></ul><ul><li>Least used are contributor (2) and rights (24) </li></ul>
  18. 18. Results <ul><li>Need to further education and training on using DC schema </li></ul><ul><li>Need to improve and implement metadata tools that would catch all errors of incompleteness, inconsistency and inaccuracy record </li></ul><ul><li>DC usage is very much in developmental stage by end user (cataloger) </li></ul>