How to sent back result from iView?

Hi Experts,

I am new for SAP Portal. I have a question on daily work. How can I sent back result from calling a iView??

I create a webdynpro for Java iView A to do some infomation collection from some other system. and as a result I got a Java file object or a table, I want this iView be called by Another OA system.

I need the OA system call the IView A the get the information I have collected. I think I can give OA system a URL to let it call the iView, but How Can I sent back the result when calling??

Any suggestion ??

Thanks in advance.

Ned CHEN