I am working on a project , which have already been developed by using Servlet/JSP . Now client wants to convert the same into a 3-tier architecture.
The database desing is also in highly Normalized form(upto 3rd level in many case).
Ideally i should design the EJBs from use-case ( say the available front-end for simplicity in my case).
If i go for designing EJB from ERD then will there a big problem in later stage? In my idea it may lead to a big performace issue .
What are the drawbacks of this approach ?
Can anybody give some link addressing this issue ?