Trigerring web services through XI

Hello All,

i need to configure XI to trigger the webservices in a java based third party system. I have written a short description about the scnario below. Can any body suggest me or provide me some links about how this can be achieved?

The key players are SAP work flow, XI and Java based third party system which has some web services. Based on the events raised by the SAP work flow, we need to capture them in the Xi and then trigger one of the webservices in the third party system. Also, we need to take the response back from the third party system into XI and again need to trigger a webservice in the third party system based on it.

Thanks and best regards,

Kulwant Singh