Metadata standards NOAA and the NOAA Central Library

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Metadata standards _at_ NOAA and the NOAA Central
Library

• Change Is Good!NOAA Librarians Workshop March
  24-28, 2003
• Anna Fiolek
• NOAA Central Library

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Metadata 101

• What Is Metadata?
• Metadata is a component of data which describes
  the data. It is structured data about data."
  Metadata describes the content, quality,
  condition, and other characteristics of data.
  Metadata describes the who, what, when, where,
  why, and how about a data set. Without proper
  documentation a data set is incomplete.
• (from CSC home page)

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CSC Home Page - Metadata
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Role of Metadata Standards (cont.)

• Standards provide a common set of terms. With
  standards, there is no confusion about what is
  being communicated by a particular term. From one
  metadata record to the next, the terminology is
  the same.
• Standards allow for quick location of a certain
  element.
• Enable metadata creator and and end user to
  make sense of information. Help finding a
  specific piece of information in a metadata
  record

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Role of Metadata Standards (cont)

• Standards enable automated searches
• When standards are used, computers can be
  programmed to search and find useful data sets.
• Standards are used in libraries, private
  industries, government, etc., to describe data

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Metadata Standard Used in Libraries

• AACR2 (2002)
• MARC21
• MARCXML
• Dublin Core
• HTML
• XML
• RDF
• UNICODE
• Z39.50
• JAVA

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Dublin Core Standards

• Developed in 1995 in Dublin, Ohio by librarians
  and digital library researchers to improve
  discovery standards for information resources,
  especially in the Web environment
• Official national standards since 2001
• NISO Standard Z39.85-2001 (September 2001)
  http//www.niso.org/standards/resources/Z39-85.pdf
  

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Dublin Core Standards (cont.)

• Define 15 metadata elements for resource
  description in a cross-disciplinary Information
  environment
• 1. Title 9. Format
• 2. Creator 10. Identifier
• 3. Subject 11. Source
• 4. Description 12 Language
• 5. Publisher 13. Relation
• 6. Contributor 14. Coverage
• 7. Date 15. Rights
• 8. Type

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Dublin Core Standards (cont)

• All 15 elements are optional and repeatable
• They have also been expanded by qualifiers
  (sub-elements, encoding schemas - controlled
  vocabularies, thesauri, MeSH, LCSH, etc.)
• Tools for creating Dublin Core metadata
• Connexion
• DCassist
• Dublin Core Metadata Template (Nordic Metadata
  project)

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Metadata Standards in Federal Government

• Metadata Standards are federally mandated. Under
  Executive Order No. 12906, all federal agencies
  and organizations receiving federal funds must
  document their geospatial data using the Federal
  Geographic Data Committee's Content Standard
  (FGDC) for Digital Geospatial Metadata and must
  publish that metadata through the clearinghouse
  system.
• (CSC home page)