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05/12/06OpenURL3 of 58 Developing OpenURL Link resolver using software suites: CUFTS knowledge base (Global Resources & Local Resources) GODOT Link Resolver dbWiz Federated Search Engine Final words Demo of Link Resolver System OUTLINE of today's topic….
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OpenURL for Accessing Reference
Resourcesby
Md EhteshamDocumentation Research Training Centre
Indian Statistical Research InstituteBangalore
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OUTLINE of today's topic….
Introduction Basic Terms History OpenURL Standard OpenURL NEED What does OpenURL consists of ? How OpenURL works ? Significance of OpenURL
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Developing OpenURL Link resolver using software suites:
CUFTS knowledge base (Global Resources & Local Resources)
GODOT Link Resolver dbWiz Federated Search Engine Final words Demo of Link Resolver System
OUTLINE of today's topic….
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INTRODUCTION
Mechanism for transporting metadata and identifiers
Describes a publication (Reference Resources) for context sensitive linking
Designed to support mediated linking from information resources to library services
Works with ‘Link Resolver System’
Facilitate seamless access to the referenced resource
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OpenURL – A NISO standard (Z39.88), by which web links (URLs) are created containing metadata, allowing the linking directly to reference resources
Source – A citation database where an image or link appears; this link is an openURL that points to a link resolver.
Targets – The items listed in the results window: the full text dbs, Catalog, Ask-a-Librarian, Google.
BASIC TERMS
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Link Resolver – Software that interprets an OpenURL and creates links to targets.
Base URL – The URL of a link resolver server.
Knowledgebase – The database containing all the library’s holdings.
BASIC TERMS
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HISTORY
In 1998 – OpenURL was developed to support Resolver technology
In 1999 – first real experiments with (Ghent, LANL, Wiley, SilverPlatter, Ex Libris, arXiv, …) was done
In 2000 – OpenURL version 0.1 was released, is simple and generally used
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In 2001 Integration of OpenURL and DOI/CrossRef framework was done
Version 0.1 has been superseded by Version 1.0, defined in the NISO Standard Z39.88 to provide more complex encoding
HISTORYCONT…
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OpenURL and its data container (the Context – Object) is an International ANSI standard Z39.88
Developed and proposed by NISO (National Information Standards)
On 22 June 2006, OCLC was named the maintenance agency for this standard
OpenURL STANDARD
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Concept of OpenURL
OpenURL is a type of URL that contains resource metadata for use, primarily in libraries and consortia
A way of organizing meta-data in a URL and pointing it to a destination
It is a standard for encoding generic search terms such as author, title, ISBN, etc into a URL
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OpenURL NEED Libraries have access to dozens of Abstracting
& Indexing (A&I) databases
A&I databases, even library catalog not always aware of ejournal subscriptions to the libraries
Finding an item is not always straightforward
Users wants quick access, as few clicks as possible between reference and resources
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ISI
reference
ingenta paper
EhostEJS paper
Appropriate copy problem
? How does ISI know which provider has the paper?
How does ISI know which copy the user has access to?
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Too Much Stuff!
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The Solution: OpenURL
ABI/Inform
manyothers!
OPAC
WilsonWeb
SourcesLink Resolver
Targets
Article full text
Journal web site
Library catalog
Google search
Citation management(RefWorks, EndNote)
Document deliveryservice
Dissertations, ERIC dox,Ebooks, etc. etc…
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What does OpenURL consists of ?An OpenURL consists of :
A base URL – Which addresses the user’s institutional Link Resolver Server and
A query string – Which contains the bibliographic data in the form of key value pairs
e.g.http://192.168.1.101/GODOT/hold_tab.cgi?volume=%202%20&title=%20Journal%20of%20Computer%20Science%20&atitle=A%20New%20Filtering%20Algorithm%20for%20Duplicate%20Document%20Based%20on%20Concept%20Analysis&date=%202006%20&pages=%20434-440&aulast=%20Ahmad%20M.%20Hasnah%20&genre=article
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An OpenURLhttp://192.168.1.101/GODOT/hold_tab.cgi?volume=%202%20&title=%20Journal%20of%20Computer%20Science%20&atitle=A%20New%20Filtering%20Algorithm%20for%20Duplicate%20Document%20Based%20on%20Concept%20Analysis&date=%202006%20&pages=%20434-440&aulast=%20Ahmad%20M.%20Hasnah%20&genre=article
BaseURL=http://192.168.1.101/GODOT/hold_tab.cgi
Volume = 2 Title = Journal of Computer
science Article = A New Filtering
Algorithm for Duplicate Document Based on Concept Analysis
Date = 2006 Pages = 434-440 Au_Last = Ahmad M. Hasnah genre = article
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How OpenURL works ?
OpenURL works as part of a broader linking system in the following steps:
Step I – The OpenURL from the reference resources carries sets of metadata to the specified link resolver
Step II – The link resolver compares the data and access rights.
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Step III – Based on the results of step II, the link resolver displays the options that are available to the patron.
Step IV – Patron selects the best option.
How OpenURL works ?CONT…
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Link Source OpenURL.
Citation/Resource ResourceService
Component
Resolver/Link Server
Provision of Hooks
Resolution into Links
Context Sensitive
Link DestinationLink
Link DestinationLink
Link DestinationLink
Link DestinationLink Hook
How OpenURL works ?
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How OpenURL works ?CONT…
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SIGNIFICANCE OF USING OpenURL
Optimal integration of resources with library linking systems.
Enables library-controlled links to a multiplicity of resources related to a citation and is designed for localized linking.
Enhanced by interaction with the DOI and CrossRef system.
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Transports metadata and identifiers describing a publication, for the purpose of context-sensitive linking.
HTTP request in the form of OpenURLs, check the local holdings and access privileges of that institution
Allows the library to provide a range of library-configured links and services
SIGNIFICANCE OF USING OpenURLCONT…
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For the librarian: Central administration of links Local control over what types of links are offered
and to where they resolve Optimizes use of licensed resources
Benefits of OpenURL linking
For the user: Desktop delivery of full text when available
electronically Expands the research horizons Consistency and accuracy of links
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OpenURL Challenges
Noisy/Insufficient data from sources Diverse and constantly changing targets Lack of integrated Open Source software for
Link Resolving
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SFX is the Link Server from Ex Libris
Delivers powerful linking services in the scholarly information environment
It helps to manage electronic resources in a library
Whether hosted locally or by EX Libris, offers libraries solution for linking the resources.
For this they are charging approx 10,000 US Dollar per annum
Proprietary Link Resolver
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Developing OpenURL Link Resolver using software suites:
CUFTS (knowledge base)
GODOT (Link Resolver) and
dbWiz (Federated Search Engine)
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CUFTS is online knowledgebase of full-text journal collections
Provides libraries to develop their sites of searchable serials databases
MARC records for library catalogue
Directs to article OpenURL link resolving, and ERM tools
CUFTS: open source serial Management
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CUFTS software
Perl
Apache/mod_perl
Various Perl modules and
PostgreSQL database
CUFTS installation requirements
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CUFTS Sites
In CUFTS we can create a library site and add Local Resources, Which is used by GODOT Link Resolver
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CUFTS Global Resources and Local Resources
CUFTS serves as knowledge base and contains a variety of resource types including Journal collections and databases called as “Global Resource”
From the Global Resources libraries can select and activate their “Local Resources”
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CUFTS Global Resources and Local Resources
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Editing Global Resources and Local Resources
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Activating Unique Local Collections
New Local Resources can also be created when one is not available in Global Resources
Name and the Provider as well as Module is required for creating new resources
GenericJournal module can be selected for typical full text collection, but if new resources uses DOI’s then we should enter ‘GenericJournalDOI’
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CUFTS Site Settings
It includes General settings, Templates, ERM Settings, CJDB Display, CJDB Data and GoogleScholar settings
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Exporting Title Lists
Activating CrossRef
Electronic Resource Management
CUFTS Statistics
OTHER FEATURES
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CJDB (CUFTS journal database)
Provides the “library users” with web-based database of all serials, including print, microform and electronic resources.
Provides a very good user interface to search the journal articles subscribed by the library
CJDB users can create their own accounts, and can organize their own collections of journals under MY TAGS
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GODOT (Link Resolver)
It is a Link Resolver Software
Provides direct Full-text Links from CUFTS knowledge base
Holdings in the Catalogue or in other location
Interlibrary Holdings Locator and Requesting
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Installation Requirements
GODOT Software
Perl
Various Perl modules
Apache/mod_perl
PostgreSQL database
YAZ (Z3950 client)
CUFTS knowledge base
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FULL TEXT LINKS
GODOT uses the CUFTS knowledge base to link the full text resources from the specified libraries.
GODOT uses the cufts_resolver_server_url
http://yourhost/CUFTS/Resolver/site
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LIBRARY CATALOGUES HOLDINGS
GODOT does Z39.50 search to retrieve the print holdings available from the local library and remote library catalogues
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Search other libraries/request this item
This link is configured in GODOT to check the availability in other similar group of libraries and to put a ILL request
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Check the web for the item
We can configure a link to Google or any other search engine to search and check the availability on the web
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GODOT Link Resolver
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GODOT Link Resolver
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GODOT Link Resolver
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GODOT Link Resolver
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GODOT Link Resolver
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dbWiz – Federated Search Engine
dbWiz is an Open source federated search engine
Allows to search multiple databases, websites, catalogues, and other online resources from a single interface
Presents the result in an integrated list
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dbWiz
Apache web server
Perl and various perl modules
Mysql
GODOT Links Resolver
CUFTS knowledge base
Installation Requirements
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dbWiz Administration
dbWiz administration login page url is something like this:
http://yourhost/DBWIZ_config/config.cgi
After login we can:
Configure dbWiz search settings. Create search profiles and categories Select and activate the databases and resources
to search and Edit the templates to change the interface look
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Searching dbWiz
dbWiz search interface provides both Basic Search and Advanced Search features.
Basic Search : Minimal interface and requires few decisions to retrieve results. Here one can select the profile or category to search.
Advanced Search : More complex search statements, and users can select their own resource for searching.
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The search results are displayed in an internet search engine format.
Citation details are provided, along with a link to either the native interface or a GODOT link resolver
dbWiz Search Result
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dbWiz search interface : Basic Search
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dbWiz search interface : Advance Search
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dbWiz Search Results
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CITATION
RESULT PAGE
GODOTLINK RESOLVER
DATA ABOUT LIBRARY’S COLLECTION
CUFTS knowledge base
FULL TEXT
OpenURL
Fig. OpenURL Linking
CONT…
SOURCE
dbWiz Search
OpenURL linking
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OpenURL is a method for sending metadata, most commonly in the form of a URL.
It contains a base URL, which is the address of Link Resolver server
Link Resolver server compares the incoming metadata and the metadata of library sites
OpenURL provides seamless access to reference
resources
Final words
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