A brief look at history
In this section, we explain how the EJB technology developed from a combination of CORBA and RMI, as well as the basic concepts of using EJBs.
Distributed component-oriented applications
A number of distribution technologies are available today. Some of the most well-known are the Object Management Group (OMG) Component Object Request Broker Architecture (CORBA), Sun Java Remote Method Invocation (RMI) protocol, and the Microsoft Distributed Component Object Model (DCOM). In the Java world, only the first two technologies stand out as especially important. In the next section, we briefly describe CORBA and RMI and show how they relate to the more recent technology of EJB.
CORBA was developed by a consortium ...