XML Concepts (1)

Well-formed XML resources:

• Make end-tags explicit:
• Make empty elements explicit: <img ... />
• Quote attributes <img src="logo.gif" height="20"
• Use consistent upper/lower case <p> and <P> are different

XML Namespaces:

• Mechanism for ensuring unique XML elements e.g. a library application containing the TITLE of the XML page, the TITLE of a book and the TITLE of:

<?xml:namespace ns="http://loc.org/.1998-001" prefix="i">
<p>Book: <i:TITLE>The Bible</i:TITLE>/p>
<p>Borrower: <j:TITLE>Mr</j:TITLE>