Siebel to Natural


I got an requirement where we have to provide some data from Natutral (running in Unix) to Siebel. It is decided that siebel will sent an request and Natural program has to sent response (values for the fileds).

Could anyone please help me how to achieve this, as am not sure how to implement this. I spoke with one of my team mate and he said that there XAI listener in which XML has to be created and then view has to be designed in SYSSQL. But he is also not sure how to do this.

Requesting help !!!