MVC2 Architecture

                                                MVC2 Design Pattern
1) Model

2)View

3)Controller

Model : Java Bean is nothing but Model
A java program which contain business logic is called as Model Component
Ex : Java Bean 

View : A piece of code which is responsible to display information to the client is called as View Component.
Ex : JSP , HTML

Controller : A program which takes the request of client and capture the data , and create appropriate Model component object and call the methods.
Ex : Servlet