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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: web services stack
 > XML is *more* than a data model, it is an information model, where: > > data + context = information Yes, but data - context = a bunch of random bits So your assertion doesn't seem all that profound. Can data even exist without context? I don't think it's data if there's no context to which it can be applied. Does an XML document, as a store of data, have a special ability to carry context? I don't see how it does. > Adaptive application can be written (if certain XML modeling rules are > followed), that allow Meta Object Protocols (MOP) and > Reflection to be used > to dynamically extend the runtime environment. Ah-yup. But a specific application of XML technology does not by itself constitute an proof that there is an underlying data model for the syntax that is XML. The fact that you can construct a data model (or information model, if you like) using XML syntax does argue for its flexibility in being adaptable to a wide variety of programming a modeling domains. But it is, by the same token, adaptable to wide variety of document domains, and serialized representations of all sorts of things. It think using XML for MOP-ish descriptions is an excellent idea myself, and have suggested as much this list in the recent past for describing how to represent XML data in objects and collections of objects. It doesn't mean that XML has a fixed underlying data model, though. You can make it represent such data models, but that's different hill of beans. 
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