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Xml plymouth






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Xml plymouth Xml plymouth Presentation Transcript

  • XML
  • What is XML and what does it mean to e-commerce?
  • David Turner, Product Manager, Microsoft
    • ''The introduction of XML is in many ways like the creation of writing in the evolution of language. People had spoken language for a long period before they got to the point of inventing writing. But as soon as they did, they were able to make huge steps forward.''
    • “ It's just a compromise everyone can live with for structuring data.”
    • XML developer, David Megginson
  • What is XML?
    • XML means “Extensible Markup Language”
    • extensible - not fixed format like HTML
    • XML is a metalanguage - a language for describing other languages
    • Enables you to define your own customized markup languages for different classes of documents
  • What is XML? (cont.)
    • Abbreviated version of SGML
    • IBM, Microsoft, Oracle and Sun all agree: XML is the key to e-business
    • XML enables business application sharing, direct transactions and other business applications.
  • What is SGML?
    • SGML is the international standard for defining descriptions of the structure and content of different types of electronic documents
    • A universal language used to describe thousands of different data types
  • What is HTML?
    • HTML is HyperText Markup Language, a specific application of SGML used on the World Wide Web
    • A simple, fixed type of document. Markup designed for simple reports with provisions for hypertext links and multimedia
  • What is XML? (cont.)
    • XML: Heir apparent to electronic data interchange (EDI) as primary means for executing business transactions over the internet
    • If XML schemas became widely adapted, data could be extracted from a multitude of similar reports on the net
  • What is XML? (cont.)
    • Report mining (searching for data in a report, applying rules and triggering actions) becomes practical
    • Extensible Forms Definition Language (XFDL)
      • Designed for complex business forms over the Internet
  • Why is XML used?
    • Designed for ease-of-use with Standard Generalized Markup Language (SGML)
    • Goal is to enable SGML to be served, received and processed beyond what is now possible with HTML
  • Who is responsible for XML?
    • XML is a project of the World Wide Web Consortium (W3C); development is supervised by W3C’s XML Working Group
    • Open-Sourced; formal W3C recommendation since Feb. 1998
  • Why is XML important?
    • Removes two constraints holding back Web development:
    • (1) Dependence on a single, inflexible document type - HTML
    • (2) The complexity of full SGML, whose syntax allows many powerful, but hard-to-program, options
  • Why is XML important?(cont)
    • HTML is at the limit of its usefulness as a way of describing information
    • HTML will continue to play an important role for content
    • Many new applications will require a more robust and flexible infrastructure
  • Why is XML important?(cont)
    • Information content can be richer and easier to use because the hypertext linking abilities of XML are greater than those of HTML
    • XML supports XLink, XPointer and XPath
    • Enables location of remote resources, anchors and targets, and complex harmonies
  • XML vs. EDI
    • Electronic Document Interchange (EDI) has been used in e-commerce for many years
    • EDI exchanges documents between commercial partners regarding a transaction
    • EDI requires special proprietary software, but EDI data will soon travel inside XML
  • XML vs. EDI (cont)
    • EDI failed to become the universal data description language due to its high cost and complexity, blocking small businesses
    • EDI-to-XML and XML-to-EDI translation is already taking place, ebXML group taking the lead
  • What does XML mean for e-commerce? (cont)
    • Companies running different accounting and business management applications will exchange documents in a cross-system flow
    • ebXML is mapping business processes to facilitate XML to XML B2B
  • XML Organizations
    • Over 250 XML industry efforts documented by Robin Cover at OASIS.org
    • XML.org, XML.com, RossettaNet.org
    • UDDI: Facilities XML to XML exchanges
    • XBRL: The Business Reporting Language