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E-Books & OpenURL Linking: A collaborative study by the 2CUL E-Books Task Force

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E-Books & OpenURL Linking: A collaborative study by the 2CUL E-Books Task Force

  1. 1. E-Books & OpenURL Linking A collaborative study by the 2CUL E-Books Task Force Susan Marcin, Columbia University Libraries smarcin@columbia.edu New York Technical Services Librarians Spring Program, "E-Books: New Links in the Chain" May 10, 2012
  2. 2. What is 2CUL? 2CUL is a transformative partnership between two major academic research libraries, the Columbia University Libraries and the Cornell University Library, based on a broad integration of resources, collections, services, and expertise. http://2cul.org/
  3. 3. 2CUL E-Books Task Force E-books represent a large, diverse, and rapidly growing group of library materials whose acquisition, description, management, and use touch many parts of our libraries’ organization. Moreover, models affecting virtually every aspect of e-books are still evolving, leaving a host of issues in flux, with many options and no perfect solutions. ● Survey e-book landscape in more detail ● Recommend steps that our libraries should take in the short term to improve e-book access and management ● Make recommendations for action
  4. 4. E-Books Linking Group ● Examine, evaluate and compare the quality of E-Book OpenURLs ● Focus on what works, what doesn’t and why Group members: ● Adam Chandler, E-Resources & Database Management Research Librarian, Cornell University ● Susan Marcin, Licensed Electronic Resources Librarian, Columbia University
  5. 5. OpenURL :: NISO Standard Z39.88 URL strings generated “on the fly.” The OpenURL path from citation to full text consists of data being generated and passed through the following places: 1. An OpenURL is sent from the citation resource to the OpenURL resolver 2. The data is matched against a knowledge base to generate content on the OpenURL resolver page 3. A second proprietary URL is sent from the resolver page to the full text
  6. 6. User Experience (UX): E-Book Citation link
  7. 7. What the OpenURL string looks like (invisible to user) http://rd8hp6du2b.search.serialssolutions.com/?ctx_ver=Z39. 88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info: sid/summon.serialssolutions.com&rft_val_fmt=info:ofi/fmt:kev: mtx:dc& rft.title=Apple+Developer+Programs& rft.date=2010-01-01& rft.pub=Apress& rft.isbn=1430229314& rft.spage=179& rft.epage=190&rft_id=info:doi/10.1007%2F978-1-4302-2932- 2_9&rft.externalDBID=n%2Fa&rft.externalDocID=978-1-4302- 2932-2_209124_Chap9 link
  8. 8. UX: Link Resolver Page link
  9. 9. UX: Full Text
  10. 10. Why does improved OpenURL linking matter? Users ● Better user experience: Users expect the provision of easy connection between library resources ● Increased patron satisfaction with library e-resources Library ● Enhanced discovery of and cross-linking into subscription e- resources
  11. 11. How did the task force assess the quality of E-Book OpenURLs? ● Looked at NISO IOTA data (IOTA = Improving OpenURL through Analytics) ● IOTA tracks the OpenURLs sent from citations to link resolvers http://openurlquality.niso.org/
  12. 12. Question: How many patron requests for e-books resulted in full text? To find the answer -- Three weeks of Columbia U's openURL log data on the NISO servers analyzed: ● one week from January 2011 ● one week from February 2011 ● one week from March 2011 78,540 total openURL requests in these 3 weeks How many of these OpenURLs are for e-books? ● 1474 Requests that contained an ISBN ● 781 Requests that lacked an ISBN but contained genre=book We analyzed 2255 e-book OpenURLs.
  13. 13. ISBNs in OpenURL Strings - Do they matter? 1474 OpenURL Requests contained an ISBN Yes No Full text link offered? 47% (698/1474) 53% (773/1474) "Get Book" link Successful? Yes (book link No (book link fails) N/A (links to leads to full-text journal, rather successfully) than book or cannot process information) "Get Book" link 94.9% (663/698) 1.1% (8/698) 3.9% (27/698) Successful?
  14. 14. Including "Genre=Book" in OpenURL Strings Lacks ISBN, but found full text anyway? Yes No Found full text? 28% (208/781) 73% (573/781)
  15. 15. OpenURL linking failure :: "Bad" Data ● Correctly identified as "genre=book," but article title "atitle" passed in openURL string. http://rd8hp6du2b.search.serialssolutions.com/? SS_Page=refiner&sid=sersol%3ARefinerQuery&rft. aulast=Mihailovic&url_ver=Z39.88- 2004&l=RD8HP6DU2B&SS_ReferentFormat=BookFormat&rft. genre=book&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx% 3Abook&rft. atitle=corporeal+words&citationsubmit=Search&SS_LibHash=R D8HP6DU2B&rfr_id=info%3Asid%2Fsersol% 3ARefinerQuery&rft. aufirst=Alexandar&SS_Errors=RequiredDataMissing link
  16. 16. We do have this book in our catalog link
  17. 17. A better OpenURL might look like this http://rd8hp6du2b.search.serialssolutions.com/?rft. au=Mihailovic%2C+Alexandar&sid=sersol% 3ARefinerQuery&SS_authors=Mihailovic%2C+Alexandar&rft. aulast=Mihailovic&url_ver=Z39.88- 2004&l=RD8HP6DU2B&SS_ReferentFormat=BookFormat&rft. genre=book&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx% 3Abook&rft.title=Corporeal+Words&rft. isbn=0810114593&citationsubmit=Search&paramdict=en- US&rfr_id=info%3Asid%2Fsersol% 3ARefinerQuery&SS_LibHash=RD8HP6DU2B&SS_isbnh=0- 8101-1459-3&rft.aufirst=Alexandar link
  18. 18. IOTA Metric Report: ISBN Drawing from our Percentage of Total number of observations Vendor OpenURL requests OpenURLs about the that contain ISBN analyzed importance of summon.serialssolutions. 98 17575 ISBN for full text com ebsco 82 27023 linking, we analyzed the pqil 82 1170 IOTA metric csa 79 12952 "ISBN" to highlight the hww 75 1428 differences refworks 68 1897 across a sample firstsearch.oclc.org 65 10309 of OpenURL unknown 63 3662 providers. sersol 30 4140 oup 7 2071
  19. 19. Detailed comparison of Summon vs. OUP The differences metric summon.serialsolutions. oup (percentage of com (percentage of OpenURLs containing in the presence OpenURLs containing this this element) element) of the ISBN element are aulast 0 90 very important in connecting date 100 96 the user to the full text. doi 11 12 isbn 98 7 title 100 99
  20. 20. Criteria for improved OpenURL linking Sending only a title in an OpenURL string is not always sufficient to find a match. If there is an ISBN associated with a book, then the OpenURL provider should ideally include the ISBN in the OpenURL request for better results. The inclusion of certain criteria do appear to promote OpenURL linking success, such as: ● ISBN ● DOI ● Title If one includes additional data, such as an author last name, with the title, the precision of the results should improve.
  21. 21. Can we rank the OpenURL linking success of e-book providers? Vendor Rating OpenURLs Analyzed IOTA E-Book Completeness summon.serialssolutions. 0.64 com 17862 Report (draft) pqil 0.61 2237 csa 0.59 27483 ebsco 0.57 50927 metric weight hww 0.57 2448 aulast 1 refworks 0.55 3078 date 2 firstsearch.oclc.org 0.54 23444 doi 8 isbn 7 unknown 0.43 5079 title 5 oup 0.4 3382 sersol 0.29 8227 gale 0.26 3019
  22. 22. Links & Contact ● 2CUL -- http://2cul.org/ ● NISO IOTA -- http://openurlquality.niso.org/ ● 2011 2CUL E-Books Task Force: Linking Subgroup Report http://tinyurl.com/linkingreport ● Susan Marcin Columbia University Libraries smarcin@columbia.edu

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