eLib Concertation Day

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eLib Concertation Day Collection Level
Description 7th March 2000
Anne Gambles - London School of Economics
Stephen Graham - London Business School
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Hybrid Library Model
LibraryUSERS
meeting ofResource with User
User Metadata
HeadLineDiscovery to AccessTools
HeadLinePersonal Information Environment
(electronic) Resource Full-Content
Resource Metadata
Library Resources
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Introduction

• Resource Data Model
• Services and collections
• User Data Model
• User status
• Subject areas that they are interested in
• PIE Data Model
• Interface creation
• The HeadLine schemata includes
• the instances of availability concept
• the various access type values that services
  and resources can have.

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Resource Data Model
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Services

• Services entity
• Metadata about the various services and products
  to which institutions subscribe and have access
  to.
• Service entity non-specific metadata about a
  service.
• Service instance entity metadata about a
  particular instance of a service, for example a
  cd-rom version, or a web-based version.

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Resources

• Resources have a child relationship to the
• HeadLine Services.
• Resources entity metadata about
• a particular Journal
• an FAQ list
• Product Documentation

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Instances of Availability

• Individual Resource entity metadata which is
  general and non-specific to any instance of a
  resource.
• Resource Instance entity metadata about a
  particular instance of a resource.
• A particular journal title may be available
• in full-text (last five years), via a web based
  service
• as abstracts only (last ten years), on a cd-rom
• in hard copy (last twelve years), in the library
• depth date range medium

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Access Restrictions

• Access Metadata is contained within the Service
  Instance Entity.
• accesstype values
• none
• ippermissioned
• ipgeneric
• generic
• individual

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Access Restrictions Cont.

• URI Fields
• ippermissionedurl
• indpasswdurl
• genericpasswdurl
• nonrestrictedlinkurl

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Conclusion

• HeadLine RDM
• an experimental data model
• a complex relational schemata
• resource discovery to resource access
• Implemented and tested using SQL
• Compliant with ANSI SQL/92
• Portability testing Postgres and Oracle

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Further Details
Further details are available on the HeadLine
Website http//www.headline.ac.uk/ HeadLine-User
s (Mailbase mailing list) http//www.mailbase.ac.
uk/lists/headline-users/ Anne Gambles
a.gambles_at_lse.ac.uk Stephen Graham
sgraham_at_london.edu