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>Has anyone published a point-by-point comparison between CORBA and >SOAP/XML-RPC? You could probably consider SOAP and CORBA as complimentary. SOAP to IIOP might be a better comparison. The three "big" object server models out there have been CORBA, EJB, and COM+ -- these three use IIOP, RMI, and DCOM respectively as the primary method to pass information to and from objects. Now that SOAP is on the scene; CORBA, EJB and COM+ don't go away, they just have another way to pass information to and from objects. In fact, before SOAP, there were many ways to get these three different worlds to interoperate -- the difference with SOAP is that the interop layer is based on XML, supposedly easier to implement than something like an RMI/DCOM bridge, and so on. For example, if I have some objects written in CORBA that provide some service, I no longer have to convince all of my customers to install an IIOP communication layer. With SOAP, the layer that calls my CORBA object could be as simple as a UNIX bash script that pipes some text through netcat. So I think of SOAP as being a universal IIOP/RMI/DCOM substitute that mere mortals can type by hand.
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