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Metadata and Meta-tags

Metadata and Meta-tags. Valeria E. Molteni Information Architecture and Design I School of Information University of Texas at Austin November 22 nd . 2005. Overview. Metadata Describing and expressing metadata: RDF Managing metadata: RDF syntaxes Dublin Core Standard Conclusions

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Metadata and Meta-tags

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  1. Metadata and Meta-tags Valeria E. Molteni Information Architecture and Design I School of Information University of Texas at Austin November 22nd. 2005

  2. Overview • Metadata • Describing and expressing metadata: RDF • Managing metadata: RDF syntaxes • Dublin Core Standard • Conclusions • References • Resources

  3. Metadata • Data about data • Description of documents • Content • Context • Structure

  4. Metadata • Search engines • extract metadata from web pages by various means • Metadata • helps you reach your target audience • helps users find what they want more efficiently.

  5. Describing and expressing metadata RDF • Resource Description Framework • W3C recommendation for metadata model and syntax(es) • RDF is commonly encoded as XML for use on the Web • underpins the ‘semantic Web’W3C - Resource Description Framework (RDF)http://www.w3.org/RDF/

  6. Managing metadata: RDF syntaxes Meta-tags • Metatags = Metadata Elements <HEAD><TITLE>Stamp Collecting World</TITLE><META name="description" content="Everything you wanted to know about stamps, from prices to history."><META name="keywords" content="stamps, stamp collecting, stamp history, prices, stamps for sale"></HEAD>

  7. Managing metadata: RDF syntaxes Meta-tags • Title Element - Page <title>META Tags - Metadata Elements</title> • META Description Tag <meta name="description" content="META Tags or what are officially referred to as Metadata Elements. The following is a partial list of metadata elements that may be used in the overall site structuring, organization, and search engine marketing strategy.">

  8. Managing metadata: RDF syntaxes Meta-tags • "Author"<meta name="author" content="Annie Abbott"> • META Keywords Tag <meta name="keywords" content="metadata elements meta tags description tag keywords language link relationship title element">

  9. Managing metadata: RDF syntaxes Meta-tags • META Language Tag <meta http-equiv="content-language" content=“es"> • META Robots Tag <meta name="robots" content=“all"> all Robots can index the page. none Robots should ignore the page. noindex Prevents indexing of a page. follow Robots can follow links from this page. nofollow Robots cannot follow links from this page.

  10. Managing metadata: RDF syntaxes Meta-tags <head><title>UT - meaningful page title</title> <meta name="description" content="A short sentence or two describing the contents of your web page."> <meta name="author" content="your name"> <meta name="keywords" content="keywords, synonyms and mis-spellings of important words describing your page. Each word or phrase should be separated by a comma> <meta name=http-equiv="content-language" content=“en"> <meta name="robots" content="all"> </head>

  11. Dublin Core Standard • The Dublin Core Standard: identifies 15 metadata elements • ISO Standard 15836-2003 • NISO Standard Z39.85-2001 • Bibliographic information • Institutions • Translations

  12. RDF and Dublin Core: specifications <RDF xmlns=http://www.w3.org/1999/02/22-rdf-syntax-ns# xmlns:dc="http://purl.org/dc/elements/1.1/"> <Description about="http://www.w3.org/Press/99Folio.pdf"> <dc:title> The W3C Folio 1999</dc:title> <dc:creator>W3C Communications Team</dc:creator> <dc:date>1999-03-10</dc:date> <dc:subject>Web development, World Wide WebConsortium, Interoperability of the Web</dc:subject> </Description> </RDF> http://www.w3.org/Metadata/Activity

  13. RDF and Dublin Core: specifications <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/"> <rdf:Description Rdf:about="http://media.example.com/audio/guide.ra"> <dc:creator>Rose Bush</dc:creator> <dc:title>A Guide to Growing Roses</dc:title> <dc:description>Describes process for planting and nurturing different kinds of rose bushes.</dc:description> <dc:date>2001-01-20</dc:date> </rdf:Description> </rdf:RDF>

  14. Conclusions • Metadata = Descriptions of the documents WHY? • Enhances retrieval performance • A way to manage electronic digital objects

  15. References • Gill, T.; Gilliland, Anne J., Woodley, Mary S. (2001). Introduction to Metadata: Pathways to digital information. Retrieved November 18th. 2005 from, http://www.getty.edu/research/conducting_research/standards/intrometadata/index.html • Haynes, D. (2004). Metadata for information management and retrieval. London: Facet, 186 p. • Seoconsultants. Meta Tags: Metadata Elements. Retrieved November 17th. 2005 from, http://www.seoconsultants.com/meta-tags/ • Sullivan, D. (2002). How to use HTML Meta Tags. Retrieved November 7th. 2005 from, http://searchenginewatch.com/webmasters/article.php/2167931 • University of New England. (2005). Metadata and Search Engines. Retrieved November 17th. 2005 from, http://www.une.edu.au/uneweb/guidelines/metadata.htm • World Wide Web Consortium, W3C (2001). Metadata: Activity statement. Retrieved November 17th. 2005 from, http://www.w3.org/Metadata/Activity • World Wide Web Consortium, W3X. The global structure of an HTML document. Retrieved November 17th. 2005 from, http://www.w3.org/TR/REC-html40/struct/global.html#h-7.4.4

  16. Resources • DC. Dublin Core http://dublincore.org/ • LOC. METS: Metadata encoding and transmissions standardshttp://www.loc.gov/standards/mets/METSOverview.v2.html • Metadata initiatives http://metadata.net/index.html • W3C World Wide Web Consortium http://www.w3.org/ • IFLA Metadata Resources page http://www.ifla.org/II/metadata.htm

  17. Questions?

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