Chapter: Web Technology : Representing Web Data

Well Formed XML Documents

XML with correct syntax is "Well Formed" XML. XML validated against a DTD is "Valid" XML.

Well Formed XML Documents

XML with correct syntax is "Well Formed" XML. XML validated against a DTD is "Valid" XML.

A "Well Formed" XML document must have the following correct XML syntax:

- XML documents must have a root element

- XML elements must have a closing tag

- XML tags are case sensitive

- XML elements must be properly nested

- XML attribute values must be quoted

Example for XML Document

<?xml version="1.0" encoding="ISO-8859-1"?> <note>

<heading>Reminder</heading> <body>Don't forget me! </body> </note>

Xml document begins with XML declaration statement: <? xml version="1.0" encoding="ISO-8859-1"?> . The next line describes the root element of the document: <note>. This element is "the parent" of all other elements. The next 4 lines describe 4 child elements of the root: to, from, heading, and body. And finally the last line defines the end of the root element : < /note>

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Web Technology : Representing Web Data : Well Formed XML Documents |