This book investigates the technical implementation and architectural requirements of the Enterprise JavaBeans 2.1 specification within the J2EE platform. The authors, who served as key architects for the EJB specifications, provide a rigorous technical framework for developers tasked with building distributed enterprise applications. By leveraging their direct involvement in the standard's creation, they offer a definitive guide to the mechanics of component-based development and the integration of complex enterprise services.

Experts and developers recognize this text as a primary source for understanding the EJB 2.1 specification due to the authors' direct roles in its development. Readers frequently note the high level of technical detail and the focus on practical application within enterprise environments.