BUILDING AN OUTREACH DIGITAL LIBRARY COLLECTION

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BUILDING AN OUTREACH DIGITAL LIBRARY COLLECTION

• Illinois ACRL Spring 2000 Conference
• 13 April 2000
• Timothy W. Cole, Interim Mathematics Librarian
• Pat Allen, ACES Librarian
• John Schmitz, Coordinator of Instructional
  Development, ACES
• University of Illinois at Urbana-Champaign
• (t-cole3_at_uiuc.edu)

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Morrill I Project Overview

• Collaboration between UIUC Library Agricultural
  Instructional Media Lab (ACES)
• Funded by Illinois Council for Food and
  Agricultural Research (C-FAR), with Additional
  Equipment grant from Intel
• Objective Build a Prototype Digital Library that
  Supports Agricultural Extension Services
  Distance Education

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Towards a Digital Library for Extension Services

• Constituencies
• Researchers (both as authors users)
• General Public
• State Legislatures (as funders)
• Web Searching -- Expectations vs. Reality
• natural language queries, full-text searching,
  seamless access from local and remote servers
• Goal Knowledge on Demand, Anywhere, Anytime

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Project Issues Objectives

• Digital Library Collection Development
• Importance Redefinition of Metadata
• Index, Search, Retrieval
• Remaining Issues

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Collection Approach

• Building a Digital Collection for this Project
• Local Remote Collection Components
• Appropriate Copy Collection Maintenance
• Organizing the Digital Collection

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Morrill I Browseable Compendium
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Metadata Approach

• Information About the item
• Normalized Descriptions of the Documents
• Descriptive Data to Facilitate Resource Discovery
• Data Describing Relations to Linked Items
• Schemas Metadata Generation
• Ensure Interoperability, Ability to Index
• How Much is Enough?
• Auto-Generation of Metadata Fields

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Dublin Core Elements Used
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UIUC DLIB TestSuite Schema

• XML Syntax / RDF, Dublin Core, Project-Specific
  Semantics
• Described per ISO 11179-3
• Created at Time of Doc. Deposit
• Stored in Relational Database (SQL)
• Dynamically Regenerated at Time of Request
• Input Interface

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Sample Metadata
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Indexing, Searching, Retrieving

• Prototype Index Contains mix of metadata
  full-text, as available
• Full-Text of Remote Document is captured for
  indexing -- But Still Retrieve Remote Copy When
  Item is Requested
• Potential of XML to Facilitate Processing
  Enhance Full-Text Searching
• Feedback to Extension Publishers
• Retrieval / View Options

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Metadata Search Screen
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Full-Text Search Screen
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Remaining Issues

• Scability Maintainability
• Interface with Data Suppliers
• Balanced Search Retrieval Across Heterogeneous
  Collection
• Portal vs. Collection
• Interoperability