1.1 XML and Applications

A standard for representing structured self-describing data
Promotes domain-specific standards for encouraging sharing information and utilities by special-interest communities

<course>
  <number>CIS 788</number>
  <quarter>Autumn</quarter>
  <days>
     <day>Monday</day>
     <day>Wednesday</day>
     <day>Friday</day>
  </days>
  <note>Welcome and hope you'll enjoy it.</note>
</course>

XHTML: <html xmlns="http://www.w3.org/1999/xhtml">
  <head>  <title>XHTML</title>  </head>
  <body>
     <h1>Hypertext Markyp Languageg</h1>
     <p><a href="http://www.w3.org/MarkUp/" >HTML</a> is the
        foundation for publishing on the web.
     </p>
  </body>
</html>
MathML: <math xmlns="http://www.w3.org/1998/Math/MathML" >
  <msubsup>
     <mo mathsize="big">∑</mo>
     <mrow>  <mi>k</mi>  <mo>=</mo>  <mn>0</mn>  </mrow>
     <mi>n</mi>
  </msubsup>
</math>
SVG: <svg xmlns="http://www.w3.org/2000/svg" >
  <circle cx="50" cy="50" r="40" fill="yellow"/>
  <rect   x="50"  y="50"  width="40" height="40" fill="green"/>
  <rect   x="10"  y="10"  width="40" height="40" fill="green"/>
</svg>

[Picture]

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