Post on 07-Apr-2018
8/4/2019 CrossRef for Libraries
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CrossRef Linking and Library Users
“The vast majority of scholarly journals are now online, and there have been a number of studies of what features scholars find most valuable in e-journals. Seamless linking to and from citations, the original articles cited, and bibliographic databases always ranks extremely highly. DOI and CrossRef provide an increasingly flexible way of enriching scholarly literature online with actionable and persistent links .”
-- Sally Morris, Chief Executive of the Association of Learned and Professional Society Publishers
8/4/2019 CrossRef for Libraries
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Outline
• Why the DOI and CrossRef?
• What’s a DOI?
• What does CrossRef do?
• DOIs in Use
• How CrossRef Enhances OpenURL Linking
• CrossRef’s Benefits to Librares and Users
8/4/2019 CrossRef for Libraries
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The use of Internet references in academic literature is common, and Internet references are frequently inaccessible. The extent of Internet referencing and Internet reference activity in medical or scientific publications was systematically examined in more than 1000 articles published between 2000 and 2003 in the New England Journal of Medicine, The
Journal of the American Medical Association, and Science. Internet references accounted for 2.6% of all references (672/25548) and in articles 27 months old, 13% of Internet references were inactive. Publishers,librarians, and readers need to reassess policies, archiving systems, and other resources for addressing Internet reference attrition to prevent further information loss.
Dellavalle et al., INFORMATION SCIENCE: Going, Going, Gone: Lost InternetReferences, Science 2003 302: 787-788 (DOI:10.1126/science.1088234)
Why the DOI and CrossRef?
8/4/2019 CrossRef for Libraries
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What’s a DOI?
• Analogous to the UPC bar code for
physical objects, a digital object
identifier is an alphanumeric stringcreated both to:
•uniquely identify/name a piece of electronic
content, and to•serve as a stable, persistent link to thatcontent’s location on the web
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DOI: THE persistent identifier
• DOI is the only widely adopted persistent,actionable identifier for online scholarly works
• A DOI persists throughout changes incopyright ownership or location because it’s
just a name used to look up an address in aneasily updateable directory
• The core functionality of the DOI system is toresolve the DOI to the registered, updateableURL
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What’s a DOI look like?
The DOI syntax is a NISO standard
In future, internet browsers will handle DOI s natively
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CrossRef’s mission
• To provide services that bring thescholar to authoritative primary
content, focusing on methods thatare best achieved through
collective agreement by publishers
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What Does CrossRef Do?
• Provides technology infrastructure forlinking
No broken links in citations or database recordsbecause it uses the DOI
•Provides business infrastructure forlinking
One agreement with CrossRef is a linkingagreement with all CrossRef publishers
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Handle System
CrossRef/DOI linking recap
DOIResolver
dx.doi.org
Repository
Cited Item
DOI10.1000/123
Citation with DOI link
CLICK
10.1000/123
http://abc.publisher/page2http://abc.publisher/page2
Full text
8/4/2019 CrossRef for Libraries
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DOIs in Print
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DOIs in Table of Contents
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DOIs in Online Full Text
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E-First Publishing
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DOIs in Reference Citations
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DOIs in PubMed
DOI link
No DOI shown
8/4/2019 CrossRef for Libraries
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DOIs in Google
Reference to article
Publisher Site
8/4/2019 CrossRef for Libraries
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DOI links on the rise!
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DOI and OpenURL
•OpenURL is not an alternative toCrossRef and DOIs – they work
together
•The DOI system and CrossRef are
OpenURL aware; therefore publishersare OpenURL enabled via use ofCrossRef and DOIs
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Appropriate copy problem
AggregatorLocal
OPAC
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Localized linking via DOI redirection
• Library installs local linking server
• User in library context clicks on a DOI link
• A “cookie” on user’s machine alerts DOIproxy server to redirect this DOI to the locallinking server
•Article-level metadata needed for localresolution can come from the source of thelink or from CrossRef via OpenURL
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CrossRef, libraries, & the OpenURL
• CrossRef members are automaticallyOpenURL-enabled by via DOI redirection
• The DOI and OpenURL are complementarytechnologies
• CrossRef integrates with several local linking
solutions• CrossRef access is free for libraries!
O URL Li ki C l C R f
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OpenURL Aware
OpenURL Linking Complements CrossRef
References
DOIServer
ServerDOI
OpenURL
Metadata
DOIlink
http://www.sfx.edu/?doi=10.1034/j.1399-0039.2000.560502.x
http://dx.doi.org/doi=10.1034/j.1399-0039.2000.560502.x
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CrossRef Benefits Libraries and Users
• User navigation at the article level leads to increasedusage of electronic resources (access)
•DOI links can extend access to content not owned(access)
• CrossRef provides persistent DOI links (valid androbust)
• CrossRef helps find the appropriate copy
(appropriate and in context)• Article-level metadata look-up makes CrossRefpublishers OpenURL compliant
Every month, over 5 million DOIs get clicked…
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…and more !! …and more !!
CERN
…and more !!
• Gateway to the DOI world
• Develops and maintains
the DOI standard
• Develops and maintains the
Handle system upon which
the DOI executes
The DOI Community
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DOI is the persistent linking standard.
The CrossRef network is rapidlyexpanding and already includeshundreds of primary andsecondary publishers, hundreds oflibraries, and millions of links….