EJB was originally designed around remote invocation using the Java Remote Method Invocation (RMI) mechanism, and later extended to support to standard CORBA transport for these calls using RMI/IIOP.

• EJB最初设计是围绕RMI的远程调用机制，后来扩展到通过RMI/IIOP来调用标准的CORBA传送。