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XHTML,XML

XHTML,XML. M.Abdullah Mrian. What is the XHTML. Why XHTML ?. What is XML? XML stands for EXtensible Markup Language. XML is a markup language much like HTML. XML was designed to describe data. XML tags are not predefined. You must define your own tags

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XHTML,XML

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  1. XHTML,XML M.AbdullahMrian

  2. What is the XHTML

  3. Why XHTML ?

  4. What is XML? • XML stands for EXtensible Markup Language. • XML is a markup language much like HTML. • XML was designed to describe data. • XML tags are not predefined. You must define your own tags • XML uses a Document Type Definition (DTD) or an XML Schema to describe the data. • XML with a DTD or XML Schema is designed to be self-descriptive.

  5. The main difference between XML and HTML • XML was designed to carry data. • XML is not a replacement for HTML. • XML and HTML were designed with different goals: • XML was designed to describe data and to focus on what data is. • HTML was designed to display data and to focus on how data looks. • HTML is about displaying information, while XML is about describing information.

  6. XML does not DO anything • XML was not designed to DO anything. Maybe it is a little hard to understand, but XML does not DO anything. • XML was created to structure, store and to send information. • The following example is a note to Tove from Jani, stored as XML:

  7. What is XSL? • XSL stands for eXtensibleStylesheet Language. • CSS was designed for styling HTML pages, and can be used to • style XML pages. • XSL was designed specifically to style XML pages, and is much • more sophisticated than CSS. • XSL consists of three languages: • XSLT (XSL Transformations) is a language used to transform XML • documents into other kinds of documents (most commonly HTML, so they can be displayed). • XPath is a language to select parts of an XML document to transform with XSLT. • XSL-FO (XSL Formatting Objects) is a replacement for CSS.

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