Selden Deemer libssdemory'edu

1
OpenURL 01. to 1.0From Framework to Standard

• Selden Deemer libssd_at_emory.edu
• Emory University Libraries

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OpenURL 1.0 Introduces New Terms
ReferringEntity
Schema
By Reference
Namespace
POST
UTF-8
KEV
ContextObject
Target
Profiles
Service types
Referrer
URI
Referent
By Value
HTTPS
Metadata formats
OFI
GET
Source
Identifiers
Resolver
SFX Menu
URI
XML
HTTP
Requester
Registry
Encoding
Grateful acknowledgement to Oliver Pesch, EBSCO
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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 AI
  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

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The OpenURL 0.1 Framework

• OpenURL 0.1 is a de facto standard that is built
  around scholarly bibliographic data only
• OpenURL 0.1 pre-defines sets of data elements to
  use in describing an item
• http//orion.galib.uga.edu9003/sfx_emory?genre
  articleaulastalexanderaufirstelizabeth
• atitleVenus20Hottentottitlecallalooissn0
  161-2492eissn1080-6512date2001volume24issu
  e3spage688epage691

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Limitations of OpenURL 0.1

• Pre-defined metadata genres and elements means
  that new ones cannot be defined to meet emerging
  needs (e.g., for image databases)
• Only provides for key-value pair (HTTP GET or
  POST) representation of metadata.
• OpenURL 0.1 is tied to HTTP transport
• Lack of implementation guidelines means that
  support for OpenURL is loosely defined

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OpenURL 1.0 Standards Process

• OpenURL 1.0 is a proposed NISO standard that
  generalizes the OpenURL concept to support open
  linking in various communities
• NISO Subcommittee AX released OpenURL 1.0 as a
  Draft Standard for Trial Use on Nov.1, 2003
• OpenURL version 1.0 will be balloted by NISO
  Members in early 2004

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Why Standardize?

• A formal standard provides an environment for
  OpenURL to evolve in a controlled way
• Ensures wider acceptance among publishers and
  other information providers
• OpenURL 1.0 addresses specific shortcomings of
  the OpenURL 0.1 framework, such as
• Supports richer data formats
• Provides more complete context description
• Allows ability to send request by reference
• Supports transport mechanisms other than HTTP

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Goals of the Standards Process

• Separate the information package from the
  transport mechanism
• Formalize the framework for the information
  package and for OpenURL itself
• Provide a flexible means to extend to other types
  of information used in other information
  communities (e.g., visual objects, auto parts,
  etc.)
• Develop community profiles and implementation
  guidelines so that the standard can be
  implemented consistently (think Z39.50)

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New Concepts in OpenURL 1.0

• ContextObject
• Format
• Registry
• Community Profiles
• Implementation Guidelines
• Describe necessary bits of the standard
• How to create 1.0 OpenURLs
• Demonstrate OpenURL 0.1 to OpenURL 1.0 upgrade
  path

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OpenURL 1.0 Formats/Genres

• Journal
• Journal
• Issue
• Article
• Conference
• Proceeding
• Preprint
• Book
• Book
• Book item
• Report
• Document

• Dissertation
• Patent
• Dublin CORE
• Others can be registered

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OpenURL 1.0 Community Profiles

• San Antonio, level 1
• Built around Key/Encoded Value
• Compatible with OpenURL 0.1
• Metadata Formats support new genres
• San Antonio, level 2
• Built around XML representations
• Similar Metadata Formats as San Antonio, level 1
• Dublin Core
• XML based
• Uses Dublin Core Metadata Format

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References

• Beit-Arie, O. (2003). Link Resolvers Explained,
  NISO Next Generation of AccessOpenURL and
  Metasearch Conference, October 29 30, 2003,
  Washington, DC.
• Petsch, O. (2003). The Promise of OpenURL , NISO
  OpenURL and Metasearch Conference, October 29
  30, 2003, Washington, DC.
• 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).
• Van de Sompel, H. (2003). The OpenURL Framework
  Origins, Evolution, Concepts, OpenURL Day
  Workshop, New York City, May 13, 2003.