E-Books & OpenURL Linking: A collaborative study by the 2CUL E-Books Task Force
E-Books & OpenURL Linking A collaborative study by the 2CUL E-Books Task Force Susan Marcin, Columbia University Libraries firstname.lastname@example.orgNew York Technical Services Librarians Spring Program, "E-Books: New Links in the Chain" May 10, 2012
What is 2CUL?2CUL is a transformative partnership between two majoracademic research libraries, the Columbia UniversityLibraries and the Cornell University Library, based on abroad integration of resources, collections, services, andexpertise. http://2cul.org/
2CUL E-Books Task ForceE-books represent a large, diverse, and rapidly growing groupof library materials whose acquisition, description,management, and use touch many parts of our libraries’organization. Moreover, models affecting virtually every aspectof 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
E-Books Linking Group ● Examine, evaluate and compare the quality of E-Book OpenURLs ● Focus on what works, what doesn’t and whyGroup members: ● Adam Chandler, E-Resources & Database Management Research Librarian, Cornell University ● Susan Marcin, Licensed Electronic Resources Librarian, Columbia University
OpenURL :: NISO Standard Z39.88URL strings generated “on the fly.”The OpenURL path from citation to full text consists of databeing 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
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
Why does improved OpenURL linkingmatter?Users ● Better user experience: Users expect the provision of easy connection between library resources ● Increased patron satisfaction with library e-resourcesLibrary ● Enhanced discovery of and cross-linking into subscription e- resources
How did the task force assess thequality 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/
Question: How many patron requestsfor e-books resulted in full text?To find the answer --Three weeks of Columbia Us openURL log data on the NISOservers analyzed: ● one week from January 2011 ● one week from February 2011 ● one week from March 201178,540 total openURL requests in these 3 weeksHow many of these OpenURLs are for e-books? ● 1474 Requests that contained an ISBN ● 781 Requests that lacked an ISBN but contained genre=bookWe analyzed 2255 e-book OpenURLs.
ISBNs in OpenURL Strings - Do theymatter?1474 OpenURL Requests contained an ISBN Yes NoFull 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?
Including "Genre=Book" in OpenURLStringsLacks ISBN, but found full text anyway? Yes NoFound full text? 28% (208/781) 73% (573/781)
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=RD8HP6DU2B&rfr_id=info%3Asid%2Fsersol%3ARefinerQuery&rft.aufirst=Alexandar&SS_Errors=RequiredDataMissinglink
A better OpenURL might look like thishttp://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¶mdict=en-US&rfr_id=info%3Asid%2Fsersol%3ARefinerQuery&SS_LibHash=RD8HP6DU2B&SS_isbnh=0-8101-1459-3&rft.aufirst=Alexandarlink
IOTA Metric Report: ISBNDrawing from our Percentage of Total number ofobservations Vendor OpenURL requests OpenURLsabout the that contain ISBN analyzedimportance of summon.serialssolutions. 98 17575ISBN for full text com ebsco 82 27023linking, weanalyzed the pqil 82 1170IOTA metric csa 79 12952"ISBN" tohighlight the hww 75 1428differences refworks 68 1897across a sample firstsearch.oclc.org 65 10309of OpenURL unknown 63 3662providers. sersol 30 4140 oup 7 2071
Detailed comparison of Summon vs. OUPThe differences metric summon.serialsolutions. oup (percentage of com (percentage of OpenURLs containingin the presence OpenURLs containing this this element) element)of the ISBNelement are aulast 0 90very importantin connecting date 100 96the user to thefull text. doi 11 12 isbn 98 7 title 100 99
Criteria for improved OpenURL linkingSending only a title in an OpenURL string is not alwayssufficient to find a match. If there is an ISBN associated with abook, then the OpenURL provider should ideally include theISBN in the OpenURL request for better results.The inclusion of certain criteria do appear to promote OpenURLlinking success, such as: ● ISBN ● DOI ● TitleIf one includes additional data, such as an author last name,with the title, the precision of the results should improve.
Can we rank the OpenURL linking success of e-book providers? Vendor Rating OpenURLs AnalyzedIOTA E-BookCompleteness summon.serialssolutions. 0.64 com 17862Report (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
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 email@example.com