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Why it's not that simple

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  • XML is not a language; it's a metalanguage
  • XML tags have no predefined meaning
  • Platform independence requires interoperable data representation
  • Interoperability requires large-scale semantic standardization
    • Hard to do technically
    • Hard to do organizationally
    • Tools and methodologies don't really help much beyond basic information display and version management
    • In the end, meaning has to be defined by human beings in a committee process. Machines cannot do this.
  • B2C and B2B have different web services requirements
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