Interface to Web Application

Hi All,

I need to call a jsp application from CRM passing some data and get back the results in a table. Can you tell me what is the best way to do this - webservice or RFC ? We don't have ITS but I was told we can do this using WebAS. We are on WebAs 610. I am not sure whether we can create a webservice in 610 ?

If I use a RFC function module then do I need a Jco for connecting to the Jsp application ?

Any help is greatly appreciated.

Thanks,

Chandrika