requesting XML document retrieved from a large and complex one..

["Ju, Hong-Taek" <juht@postech.ac.kr>]

hi everybody

I have a very simple question about a XML document exchange.
In some cases, a part of XML document that is retrieved from server is used
to do futher processing by a client.
This is  inefficient method because unnecessary information is processed in
server and trasferred through network.
Is there a standard or common method to request a part of a large or complex
XML document?

/juht