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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: What does SOAP really add?
 I would also point out that this is very different from (but not necessarily in conflict with) REST. REST says that all data is exposed through a consistent interface, with every distinct information item being globally-addressable through "mediated views". "Web services" on the other hand, says that my data is exposed to you through a single address; the address of my mailbox outside the castle wall. You drop a message in my mailbox, my serf goes and gets it to deliver to me, and then I decide what (if anything) to put in a message back to you. You never know what goes on inside my fiefdom to produce the end message that you see. Joshua, That is the best description of what I understand about web services. It is a back end messageing tool using HTTP (and many others) as the transport mechanism. For system information that isn't normally exposed to HTTP. IOW, It may be generally available for anyone to consume or it may require a contract to run. The RPC part of it, is the Local coding that deals with the internal system. So that the remote vendor doesn't have to worry about what the other corporation is using as the backend. IOW, I don't have to write the Oracle calls or whatever is on the backend of that system. the person writing the web service does that. It should be pointed out, that these are systems that are not normally exposed via HTTP the other protocols. It is useing HTTP as a transport mechanism. But the description of the Castle Wall, is a very good description. Douglas 
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