Get input and output of a webservice?

I am new to using webservices and i need to find out the input and output of a webservice. I have the WSDL of the webservice and the XSD files. Is there a script or a utility that I could use to get the list of input fields that a webservice requires and the output fields that it will return?

I tried using soapUI and by checking Request 1 i see all the fields of the webservice, but i dunno how i could tell which ones are in开发者_JAVA百科put and which ones are output.

Any pointers on this are very much appreciated. Thanks a lot in advance!

Do you mean something like this?

Thats just the design view of a WSDL file in eclipse!