Definitions for "Qualified name"
From Namespaces in XML 1.1 ( 2004-02-04) A qualified name is a name subject to namespace interpretation.
The complete name of a component, including the prefix associated with its target namespace if one is defined.
A ·qualified name· is an XML name that may contain a colon. The part before the colon is called the prefix, and is bound to a namespace URI thanks to an xmlns declaration. When the XML name doesn't contain a colon, there is no prefix in such a ·qualified name· , and its namespace URI is bound to the default namespace URI if it is about an element name, or not bound to a namespace URI otherwise.