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Metadata for Digital Content

Metadata for Digital Content. Jane Mandelbaum, Ann Della Porta, Rebecca Guenther. Charge. Recommend one common set of metadata elements for all digital content Analyze existing descriptive metadata Recommend methods for creation of metadata for existing digital objects that lack metadata.

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Metadata for Digital Content

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  1. Metadata for Digital Content Jane Mandelbaum, Ann Della Porta, Rebecca Guenther

  2. Charge • Recommend one common set of metadata elements for all digital content • Analyze existing descriptive metadata • Recommend methods for creation of metadata for existing digital objects that lack metadata

  3. Why do we need this? • Provide access to LC’s digital content which may be stored in separate environments • Share the content and the metadata • Provide additional services to users, e.g., Web 2.0 functions • Improve LC’s Metasearch service

  4. Building on Existing Foundation • Metadata schemas from various digital projects (e.g. American Memory, Performing Arts Encyclopedia, Web capture) • Search requirements and use cases are to be supported • WDL search and discovery vision – metadata elements and presentation options • Relationship (if any) to ILS records needs to be understood

  5. Use Cases • Concrete examples of “what we could do if we have better metadata” • Examples: • Navigation by place, date, type of item, topic • Reuse for different audiences, in different combinations and delivery mechanisms • Better access to the content in web pages

  6. Doing Something Useful: Next Steps • Search and Discovery • Improve Data for Faceted Searching • Add More Content for Federated Searching • Migrate Towards More Access Points for External Search Engines

  7. Doing Something Useful: Next Steps • Targeted Improvements • Create standardized metadata for videos for internal use and external providers • More options for presentation and delivery • Access to more content in LC web pages

  8. How are we doing it? • Establish a master set of metadata elements commonly used among digital projects • Annotate the list with preferred practices for metadata content • Create metadata profiles for each initiative, detailing which elements are used and how they are encoded • Identify where metadata remediation is needed and attempt to improve existing records

  9. LC metadata profiles • American Memory • Performing Arts Encyclopedia • LC Web pages • LC Web Archives • National Digital Newspaper Program • World Digital Library • LC Webcasts • LC Exhibits

  10. Title Alternative Title Abstract Name (Personal or Corporate) Date captured Start date End date Language Resource type Genre (“Web site”) Subject (Topic, geographic, temporal, name, title) Original site URL MIME type/digital origin Collection title/URL LC repository Electronic location (URI) Identifier Rights Record information Example: LC Web Archives LCWA Profile

  11. Future goals • Use the metadata profile for newly described digital content so that there is consistency • Use common rules for metadata content • Remediate existing metadata where possible • Establish a common search interface to provide seamless access to LC digital content

  12. Metadata remediation: geographic • Best practices • Supply hierarchical form • Prefer controlled form • Remediating existing data • Translate coded form into controlled textual form for presentation • Translate uncontrolled form into controlled form • Translate into hierarchical form (e.g. Country—State—City) • Extract geographic subdivisions from subject strings and make searchable • Extract state information

  13. Questions? • Thank you!

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