This images describes the MVC application architecture.

• The client sends a request to the Controller, which has two parts:

  • The first part is the Controller servlet.

  • The second part is made up of the ActionHandler interface, the AbstractActionHandler class, and the ActionHandler implementation.

• Next, either the Controller or the JSP accesses the Model, which has two parts:

  • The first part consists of EJB Remote, EJB Home, and EJB Implementation.

  • The second part consists of the Data Access Object interface and the Data Access Object implementation.

• The Model accesses the database and returns information to the JSP.

• The JSP sends a response to the client.

The surrounding text describes the processes associated with this image.