You will have what is known as design patterns. Author Floyd Marinescu, a leading expert on EJB, worked with members of the EJB community of TheServerSide.com to put their collective knowledge together to build a library of design patterns, strategies, and best practices for EJB design and development. Unlike other patterns books, this book is beyond the high-level design to actual code to implement it, saving developers countless hours of time and effort when building scalable, reliable, and maintained EJB systems.