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Metadata for the Web

This resource discusses the significance of metadata in web services, focusing on resource discovery, website management, and future directions. It emphasizes the importance of attributes defined by the Dublin Core metadata standard, which supports organizing and finding information effectively. Practical examples illustrate the use of metadata in enhancing search engine visibility and improving website administration. Group activities encourage collaboration to identify necessary metadata attributes, helping to create a comprehensive understanding of metadata applications in web environments.

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Metadata for the Web

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  1. Metadata for the Web Andy Powell UKOLN University of Bath http://www.ukoln.ac.uk/metadata

  2. Aims? • Think about uses for metadata, i.e. services… • Resource discovery • Web-site management • Practicalities… • Tools • Information flow • The future...

  3. We are not… • …going to come up with all the answers... • …or any answers!

  4. Knowing me, knowing you(a ha) • Metadata? • HTML <META> tags? • Using them? • Dublin Core? • Using it? • Webmaster? • Local search engines?

  5. Three problems... • Searching Alta Vista for'University of Bath' • Searching within a university for all course module details • Searching within a university for out of date pages

  6. Alta Vista Metadata Example <HTML><HEAD> <TITLE>UKOLN Home Page</TITLE> <META NAME="keywords" CONTENT="national centre, network information support, library community, awareness, research, information services, public library networking, bibliographic management, distributed library systems, metadata, resource discovery, conferences, lectures, workshops"> <META NAME="description" CONTENT="UKOLN is a national centre for support in network information management in the library and information communities. It provides awareness, research and information services"> </HEAD> <BODY> ...

  7. Group work - 1 • Groups of 3 or 4 • Discuss the example user-services and Web-site administration functions • Can you think of others? • Try and identify what metadata attributes are required for the examples

  8. Group work - 2 • Groups of 3 or 4. List… • File formats • Which file formats are made available on your Web-site? • Information types • Try to categorise the different types of information you make available - prospectus, course module details, job ads, etc • Subject terms • Is a list of subject terms (physics, chemistry, maths, etc) available for your site?

  9. Dublin Core • Ongoing development since about 1995 • Aimed at Web resource discovery primarily • Used in a growing number of projects currently • Not aimed at Web-site administration issues

  10. Title Subject Description Creator Publisher Contributor Date Type Format Identifier Source Language Relation Coverage Rights Dublin Core - elements • 15 element core metadata set

  11. Dublin Core - HTML Example <HTML><HEAD> <TITLE>UKOLN Home Page</TITLE> <META NAME="DC.Title” CONTENT="UKOLN: UK Office for Library and Information Networking"> <META NAME="DC.Subject" CONTENT="national centre, network information support, library community, awareness, research, information services, public library networking, bibliographic management, distributed library systems, metadata, resource discovery, conferences, lectures, workshops"> <META NAME="DC.Description" CONTENT="UKOLN is a national centre for support in network information management in the library and information communities. It provides awareness, research and information services"> <META NAME="DC.Creator" CONTENT=”Isobel Stark"> </HEAD> ...

  12. Metadata tools • HTML or text editors • tedious, hard to do bulk-changes • Web-site management tools • NetObjects Fusion • Home grown solutions based on SSIs • Other?

  13. Who maintains metadata? • Authors • Webmaster • Registry • The library

  14. Which pages? • Which pages should have embedded metadata? • All? • 'Home' pages? • Selected pages? • Just the university home page?

  15. Using metadata... • Building search engines… • Most Web-site indexing tools use keywords and description? • Harvest • Isite • SWISH-E • ht://Dig • Issues… • Frames • Web-view vs. filesystem view • Directory structure

  16. The future... • XML • Resource Description Framework (RDF) • Complex • Needs tools • There will be tools…?

  17. Dublin Core - RDF Example <?xml:namespace href="http://www.w3c.org/RDF/" as="RDF"?> <?xml:namespace href="http://purl.oclc.org/RDF/DC/" as="DC"?> <RDF:RDF> <RDF:Description RDF:HREF="http://www.ukoln.ac.uk/"> <DC:Title>UKOLN: UK Office for Library and Information Networking</DC:Title> <DC:Creator>UKOLN Information Services Group</DC:Creator> <DC:Subject> national centre, network information support, library community, awareness, research, information services, public library networking, bibliographic management, distributed library systems, metadata, resource discovery, conferences, lectures, workshops </DC:Subject> <DC:Description> UKOLN is a national centre for support in network information management in the library and information communities. It provides awareness, research and information services </DC:Description> </RDF:Description> </RDF:RDF>

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