Web service type RPC, etc. functions, the distribution of the run that they call their very for familiar with. normally, the most simple unit, this model invokes an operational is that a wsdl in PHP, there are other methods that function similar to as object RPC can be called. Object Management Group's (OMG) Common Object Request Broker Architecture (CORBA) and Microsoft's Distributed Component Object Model (DCOM) or Sun Microsystem Java set have the same (RMI)is called.