Summary

In this chapter you learned that:

  • HTML is the Hypertext Markup Language and its set of tags is predetermined.

  • XML is the eXtensible Markup Language.

  • XML is extensible because its metadata (set of tags) is completely dynamic and can be extended.

  • XSL stands for eXtensible Style Sheets.

  • XSL allows for consistent formatting to be applied to repeated groups stored in XML documents.

  • XML namespaces allow for the making of distinctions between different XML documents that have the same elements.

  • XML can utilize character sets of different languages by using Unicode character sets.

  • The XML DOM (Dynamic Object Model) allows run-time (dynamic) access to XML web pages.

  • Different browsers and browser versions will behave differently with XML.

  • For examples in this book, Ive used Microsoft Internet Explorer version 6.0, running in Win2K (Windows 2000).

  • The DTD (Document Type Definition) allows enforcement of structure across XML documents.

This chapter has given you a brief picture of what XML is, including a comparison with HTML and a brief summary of XSL. HTML creates web pages with fixed data and metadata. XML allows creation of web pages with adaptable data and metadata content.

The next chapter examines the XML DOM or the Document Object Model for XML. The XML DOM, like the HTML DOM, allows dynamic (run-time) access to both the data and metadata in a web page.



Beginning XML Databases
Beginning XML Databases (Wrox Beginning Guides)
ISBN: 0471791202
EAN: 2147483647
Year: 2006
Pages: 183
Authors: Gavin Powell

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