XML in Action An Overview of XML Today Computers In Libraries March 16, 2001 Darlene Fichter...

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Transcript of XML in Action An Overview of XML Today Computers In Libraries March 16, 2001 Darlene Fichter...

  • Slide 1
  • XML in Action An Overview of XML Today Computers In Libraries March 16, 2001 Darlene Fichter University of Saskatchewan Libraries fichter@sask.usask.ca library.usask.ca/~fichter/
  • Slide 2
  • Outline XML in a Nutshell Whats Real and Whats Hype? XML Applications Publishing Digital Library/Full Text Cataloguing Other
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  • XML in a Nutshell Structured data in a text file via markup Looks like HTML but isn't Verbose text, isn't meant to be read New, but not that new License-free, platform-independent and well-supported A family of technologies (adapted from Bert Bos, http://www.si.uniovi.es/mirror/www.w3.org/XML/1999/XML-in-10-points)
  • Slide 4
  • Current State of Affairs XML solves real world problems DTDs based on XML Standards are multiplying like rabbits (both good and bad) Major stakeholders bought in IBM, Microsoft, SAP,
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  • Significant Forces Advancing XML Adoption Internationalized media-independent electronic publishing Definition of platform-independent protocols for the exchange of data electronic commerce Information delivery to user agents automatic processing after receipt
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  • XML Applications - Now we see them! SMIL MATHml - Many academic applications More examples: http://www.oasis-open.org/cover/acadapps.html
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  • SMIL Synchronised Multimedia Integration Language Integration of multimedia with text, audio, video Support in RealPlayer & Windows Media Player This Day in History This Day in History from the History Channel Porsche
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  • News! Many web sites headline services are utilizing one of the XML News DTDs such as RSS
  • Slide 9
  • XML Standards Information Food Chain Publishing Digital rights (EBX,) E-books News (RSS, ICE, nift, NewsML) Digital Libraries / Full Text EAD TEI Lite DDI (Data Librarians)
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  • XML Food Chain cont Cataloguing Cheshire Cat (MARC as SGML) Dublin Core CORC Other: National Library of Medicine
  • Slide 11
  • Example - EBX The Electronic Book Exchange (EBX) Working Group is an organization of companies, organizations, and individuals developing a standard for protecting copyright in electronic books and for distributing electronic books among publishers, distributors, retailers, libraries, and consumers. http://www.ebxwg.org/
  • Slide 12
  • EBX - Why? Open, freely available, and commercially viable standards for the secure transmission of electronic books Solve issues as the purchase, sale, lending, giving, printing, subscribing, and licensing of electronic books Independent of content format Make one wheel, not 20 Speed up tool development
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  • Digital Texts and Documents EAD talked about by the next speaker TEI OEB DDI
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  • TEI & XML TEI Lite Supports 4 levels of coding
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  • TEI - Example University of Virginia, Electronic Text Center Scope The Electronic Text Center's holdings include approximately 51,000 on- and off-line humanities texts in twelve languages, with more than 350,000 related images (book illustrations, covers, manuscripts, newspaper pages, page images of Special Collections books, museum objects, etc.)
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  • OEB - Open E-Book In September 1999, the group published the Open E-Book 1.0 Publication Structure The Open E-book standard is essentially XHTMLthat is, a clean version of HTML 4.0 along with support for CSS. www.openebook.org
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  • Data Documentation Initiative is A metadata standard for the social sciences Developed by data librarians and producers from the USA, Canada, and Europe To provide a seamless interface between the user, data files and their documentation.
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  • Why DDI? Data Libraries had: Extensive collections of code books, questionnaires and other documents about surveys Desire to support very specific searches Across multiple data archives and repositories Legacy conversion problem
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  • What would DDI do? 1. Search through detailed metadata of multiple data sources located at several data archives with a single search operation.
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  • What would DDI do? 2. Once a data file was located, the user should be able to conduct statistical analyzes interactively, view the data statistically or geographically and even subset cases.
  • Slide 21
  • Nesstar Explorer http://www.nesstar.org/explorer/
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  • From Documents to Description MARC Dublin Core RDF
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  • MARC as SGML? Need for a more universal way to encode descriptive information -not everyone has library catalog software Looking beyond MARC for better retrieval systems to SGML and XML
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  • Cheshire II Cheshire II experimental online catalog system was developed using SGML Address two problems of subject searching, search failure (no results) and information overload
  • Slide 26
  • RDF - Resource Description Framework Framework for metadatametadata Interoperability of information exchange between applications Applications: Resource discovery Knowledge sharing and exchange Content rating Intellectual property rights
  • Slide 27
  • XML in Use - Web RSS Syndicated content E-books Data interchange for e-commerce
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  • XML Today - Intranets Intranets Data interchange More and more external content providers offer XML formatted content WAP and other devices are feeding the XML fever (create once, publish many)
  • Slide 29
  • Intranets & Libraries XML makes it easier to blend external and internal content Role of the librarians becomes one of mapping and packaging for best use
  • Slide 30
  • Not a Silver Bullet XML is not the answer to all the worlds problemsit creates new problems, that are awfully damn interesting to solve. Simon St. Laurent, author of XML: A Primer, on the xml-dev mailing list
  • Slide 31
  • Thank you! Darlene Fichter University of Saskatchewan Libraries fichter@sask.usask.ca library.usask.ca/~fichter/