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Make no mistake, XML-RPC has its flaws, but this function invocation protocol is also well-suited to a variety of tasks. Here, columnist David Mertz examines XML-RPC as a way of modeling object data, and -- in response to reader feedback -- compares XML-RPC as a means of serializing objects with the xml_pickle module discussed in his earlier columns. Code samples illustrate this comparison in detail. Read XML-RPC as object model here (http://www.grindinggears.com/articles/Client_Side_Coding/XML/xml-rpc_as_object/page1.html)