venki
hi LubisaK
nice to c ur mail , yes what you said is absolutely correct , servlet is a good controller, as far as buisiness logic is concerned
we can go for worker beans as you said, and we can invoke them from jsp , which is going to be a layer on servlet .so what i feel is
though ultimately servlet is going to take of the worker objects , for front end we can go jsps .do reply if you have any
reservations over this 
const. criticism is always welcome 
bye for now
regards
venki