Selden Deemer [email protected]@emory.edu Emory University Libraries OpenURL and SFX@Emory.
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Transcript of Selden Deemer [email protected]@emory.edu Emory University Libraries OpenURL and SFX@Emory.
October 23, 2003GLA/COMO2
URLs and the Web
The World Wide Web is woven from URLs
Most URLs act like shelf addresses or accession numbers
Imagine a library where everything is shelved by accession number…
October 23, 2003GLA/COMO3
Finding Things with URLs
Most URLs are not particularly useful finding aids, because they contain no inherent information (metadata) about the target
What if the specific item you want isn’t available?http://www.library.emory.edu/2003_0411_163108AA.JPG
October 23, 2003GLA/COMO4
OpenURL Call Number Analogy
A call number is more than a way to find a book; it contains implicit metadata
QL 696 .C9 can be decomposed to:
A call number can be used as a starting point for other copies, similar works, and services
QL Zoology
696 Birds, systematic list (subdivisions, A-Z)
.C9 Cypseli (Swifts)
October 23, 2003GLA/COMO5
Origins of OpenURL
Some URLS have structure implying content:http://muse.jhu.edu/journals/callaloo/v024/24.3alexander.html
The same work from a different source: http://links.jstor.org/sici?sici=0161-2492%28198921%290%3A39%3C265%3ATVH%28%3E2.0.CO%3B2-P
What if everybody agreed to create “fat” URLs following standardized rules?
October 23, 2003GLA/COMO6
The OpenURL 0.1 Framework
OpenURL 0.1 defines a standardized way to “fatten” a URL with metadata describing the work that is being sought: http://www.galileo.usg.edu/sfx_emory?genre=article&aulast=alexander&aufirst=elizabeth&atitle=Venus%20Hottentot&title=callaloo&issn=0161-2492&eissn=1080-6512&date=2001&volume=24&issue=3&spage=688&epage=691
October 23, 2003GLA/COMO7
OpenURL 0.1 and 1.0
OpenURL 0.1 is a de facto standard that is built around scholarly bibliographic data
OpenURL 1.0 is a proposed NISO standard that generalizes the OpenURL concept to support open linking in various communities
An OpenURL registry allows communities to register different metadata formats
OCLC is hosting the (read-only) OpenURL registry during the trial period
October 23, 2003GLA/COMO8
OpenURL Link Resolution
Key concepts developed at University of Ghent and Los Alamos National Laboratories (1998-2000), and licensed to Ex Libris for their SFX product
An OpenURL does not point directly to the actual item (e.g. a link from a record in an A&I database to the corresponding full-text)
OpenURL provides a link that transports metadata about the referenced item to a Link Resolver
The Link Resolver determines what versions of the work are available, and may offer other services
October 23, 2003GLA/COMO9
GETS/GALILEO SFX Project
After almost two years of evaluation, GALILEO recommended SFX early 2003
Emory, Georgia State, Georgia Tech, and UGA, with GALILEO are engaged in a pilot project to implement SFX in a consortial setting
The SFX server is managed by GALILEO staff Each participant manages a local instance of SFX,
including a localized SFX KnowledgeBase and configuration files
October 23, 2003GLA/COMO10
The SFX KnowledgeBase
The KnowledgeBase includes information about approximately 400,000 SFX sources, targets, and services
It also includes rules that determine the relevance of specific services in a specific context
Updates to the KnowledgeBase are made available monthly, and are applied by GALILEO staff
Local changes to records in the KnowledgeBase are protected from updates
October 23, 2003GLA/COMO11
SFX Instances
GALILEO staff manage a central instance of the SFX KnowledgeBase for centrally purchased targets and sources
The Emory SFX instance is used to manage all other resources
The appearance and content of the Emory SFX services menu is entirely under our control
The Emory SFX services menu presented to users may contain a seamless mix of targets from the GALILEO and Emory instances
October 23, 2003GLA/COMO12
Key SFX Concepts and Terms
Source: An OpenURL-enabled information resource in which users begin their search (e.g., Historical Abstracts, MEDLINE)
Services: Facilities offered to the end user, based on information the end user is examining
Menu: A list of services relevant at a specific context, and displayed by the SFX server
Target: An information source or service where a user lands as a result of following an SFX Service link
October 23, 2003GLA/COMO13
SFX Services
A link resolver can offer a range of services based on metadata in the OpenURL:– Full text– Abstract or Table of Contents– Document Delivery– Interlibrary Loan– Union Catalog Search– Web Search– More…
October 23, 2003GLA/COMO14
SFX Services Menu
Alexander, Elizabeth. The Venus Hottentot (1825)Callaloo - Volume 24, Number 3, Summer 2001
October 23, 2003GLA/COMO15
Citation Linker
October 23, 2003GLA/COMO16
OpenURL Generator
October 23, 2003GLA/COMO17
GETS SFX Project Links
Citation Linker: http://www.galileo.usg.edu/sfx_emory/citation
OpenURL Generator: http://www.galileo.usg.edu/sfx_emory
Georgia Tech eJournals Web Page:http://www.library.gatech.edu/search_locate/electronic_journals.html
More Information: google for sfx faq
October 23, 2003GLA/COMO18
References
Cummings, J. and R. Johnson (2003). “The Use and Usability of SFX: Context-Sensitive Reference Linking.” Library Hi-Tech 21(1): 70-84.
Van de Sompel, H. and O. Beit-Arie (2001). "Open Linking in the Scholarly Information Environment Using the OpenURL Framework." D-Lib Magazine 7(3).
Van de Sompel, H. and O. Beit-Arie (2001). "Generalizing the OpenURL Framework beyond References to Scholarly Works : The Bison-Futé Model." D-Lib Magazine 7(7/8).
Walker, J. (2001). "Open linking for libraries: the OpenURL framework." New Library World 102(1163/1164): 127-133.
