It is a language for finding information in an XML document.
It is used to navigate through elements and attributes in an XML document.
It is a language for selecting nodes from an XML document.
It is used to compute values (strings, numbers, or boolean values) from the content of an XML document.
For more information,Examples and Tutorials on x-path visit to :http://www.roseindia.net/tutorials/xPath/index.shtml