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> One thing that XML-RPC or SOAP buy you (today) over straight XML+HTTP > is automatic marshalling. Specifically, what is missing is that you can't do: > > http.put(url, anyObject) > > and have 'anyObject' marshalled and serialized to XML automatically by > the library, and then sent over HTTP. If "anyObject" is literally any object, then there's a HUGE downside to that: Application developers start to "think" in terms of APIs that work within a particular programming environment, rather than in terms of interoperable data. They rely on automagic marshaling code they don't/can't control. And bit by bit, interoperability starts to disappear... Of course, for folk controlling those programming environments, that is a feature (customers then can't switch vendors so easily). And some customers may even be comfortable ceding control over those parts of their business strategies, given time-to-market wins. If that's "any object defined using an Interface Definition Language (IDL)" then that's less of an issue. - Dave
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