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Session6

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Course session on metadata basics for libraries.

Course session on metadata basics for libraries.

Published in: Education, Technology
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  • 1. Metadata basics for libraries IST 523 March 5, 2008 Denise A. Garofalo
  • 2. Topics to be covered • What is metadata? • What is Dublin Core? • What is syntax? • How are metadata used? • Search engines and metadata • Why use metadata?
  • 3. What is metadata? • (metadata is plural, like data) • quot;data about dataquot; • “information about information.” • answers who, what, when, where, why, and how
  • 4. Who.. • collected the data • distributed the data
  • 5. What... • subject • processing • projection
  • 6. When... • data projected
  • 7. Where... • data collected
  • 8. Why... • collected • [purpose]
  • 9. How…. • collected • should it be used • much did it cost
  • 10. In other words it describes • content • quality • condition • other characteristics of data
  • 11. Metadata schemas • Dublin Core • AACR2 • GILS • EAD • IMS • AGLS
  • 12. Dublin Core
  • 13. Dublin Core • Popular metadata schema (element set) • 15 broad categories • widely used in libraries
  • 14. Dublin Core elements • Title – name • Author/creator – person primarily responsible • Subject/keyword – topics
  • 15. Dublin Core elements • Description – description of the contents • Publisher – responsible for availability • Other contributors – others who made contributions
  • 16. Dublin Core elements • Date – date resource available • Resource Type – category • Format – data format of the resource
  • 17. Dublin Core elements • Resource identifier – ID number • Source – Where resource came from • Language – of the intellectual content
  • 18. Dublin Core elements • Relation – relationship • Coverage – location and duration • Rights Management – copyright notice, etc.
  • 19. What is syntax? • Not strictly part of schema • Needed for processing • Common syntax schemes are: – HTML, SGML, XML – RDF – MARC – MIME
  • 20. How are metadata used? • embedded in a web page • as a separate HTML document • in a database
  • 21. Web pages • Simple • Part of page creation • <meta> tags – <title> – <META name=quot;Keywordsquot; content=quot;first, second, thirdquot;> – <META name=quot;Descriptionquot; content=quot;Your descriptionquot;>
  • 22. Search engines • Functions • History
  • 23. Meta tags and search engines • The introduction of the <META> element as part of HTML coding was, in part, an attempt to encourage search engines to extract and index more structured data, such as description and keywords
  • 24. Why? • Search engines are proprietary in processing meta tags
  • 25. Why use metadata? • Systematic • Access
  • 26. Example (Dublin Core) • <HTML> !4.0! <HEAD> <TITLE> A Dirge </TITLE> <META NAME=quot;DC.Titlequot; CONTENT=quot;A Dirgequot;> <META NAME=quot;DC.Creatorquot; CONTENT=quot; Shelley, Percy Bysshequot;> <META NAME=quot;DC.Typequot; CONTENT=quot;textquot;> <META NAME=quot;DC.Datequot; CONTENT=quot;1820quot;> <META NAME=quot;DC.Formatquot; CONTENT=quot;text/htmlquot;> <META NAME=quot;DC.Identifierquot; CONTENT=quot; http://purl.org/DC/elements/1.0/quot;> </HEAD> <BODY><PRE>
  • 27. Example continued • Rough wind, that moanest loud • Grief too sad for song; • Wild wind, when sullen cloud • Knells all the night long; • Sad storm, whose tears are vain, • Bare woods, whose branches strain, • Deep caves and dreary main, • - Wail, for the world's wrong! • </PRE></BODY> </HTML>
  • 28. Where is metadata stored? • Embedded in a web page • as a separate document • in a database
  • 29. How is metadata created? • Tools – DC-dot - http://www.ukoln.ac.uk/metadata/dcdot/ – DCmeta - http://www.dstc.edu.au/RDU/MetaWeb/generic_tool. html – HotMeta - http://www.dstc.edu.au/Research/Projects/hotmeta/
  • 30. Metadata creation • Ideally with a purpose-built tool • Keep from-scratch creation to a minimum
  • 31. Resources • The IFLA Metadata Resources page The most comprehensive guide to metadata resources available on the World Wide Web. <URL:http://www.ifla.org/II/metadata.htm> • Meta tags can index, organize your Web pages By Jeff Frentzen <URL:http://www8.zdnet.com/pcweek/ir/0113/13jia.html >
  • 32. Resources • Making a MARC with Dublin Core By Jon Knight in issue 8 of Ariadne. <URL:http://www.ariadne.ac.uk/issue8/marc/> • META Tagging for Search Engines Describes the use of the <META> tag for specifying to search engines how the document to be indexed. <URL:http://WWW.Stars.com/Location/Meta/Tag.html>
  • 33. More resources • Web4Lib Electronic Discussion An electronic discussion for library-based World-Wide Web managers. <URL:http://sunsite.berkeley.edu/Web4Lib/> • Metadata Glossary A draft metadata term maintained by Michael Day <URL:http://www.ukoln.ac.uk/metadata/glossary/>

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