Hi
In Nodel 1 the JSP has to (i)do control logic (role of controller) as well as application logic(through beans ie function of model) (ii) present the results to the user (role of view).
In Model 2 these functions are separated. The users request first goes to a
servlet which controls flow and uses beans for application logic. The results are then presented by the JSP whose role in this case is to do the presentation only.
Thus SERVLET - CONTROLLER
BEANS - MODEL
JSP - VIEW
Hope this helps
regards
sree bk