xsi:noNamespaceSchemaLocation
attribute on
root element
xsi
prefix is mapped to http://www.w3.org/2000/10/XMLSchema-instance URI
For example,
<?xml version="1.0"?> <GREETING xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance" xsi:noNamespaceSchemaLocation="greeting.xsd"> Hello XML! </GREETING>