Hope that this might be my last question about the assignment
Luay, I didn't observed any examples of backing beans accessing the JPA in Java EE 5 tutorial.
Could you please name the section so that I can refer it? It will be useful to me as I don't have experience in JSF.
For example, in the Java EE 5 tutorial case studies there is The Duke's Bank Application.
The CustomerBean component (Backing bean) uses @EJB annotations to inject references to the enterprise beans. In the enterprise beans implementation, the EntityManager uses the Entities to invoke database operations. There is no additional DAO layer in that example and many others all over the web.