XML Elements are Extensible

ben2ong2 · October 05, 2006, 05:03:02 PM

XML documents can be extended to carry more information.
Look at the following XML NOTE example:
<note><to>Tove</to><from>Jani</from><body>Don't forget me this weekend!</body></note>
Let's imagine that we created an application that extracted the <to>, <from>, and <body> elements from the XML document to produce this output:
MESSAGE To: ToveFrom: JaniDon't forget me this weekend!
Imagine that the author of the XML document added some extra information to it:
<note><date>2002-08-01</date><to>Tove</to><from>Jani</from><heading>Reminder</heading><body>Don't forget me this weekend!</body></note>
Should the application break or crash?
No. The application should still be able to find the <to>, <from>, and <body> elements in the XML document and produce the same output.
XML documents are Extensible.

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XML Elements are Extensible

ben2ong2