Any time the semantics represented by the XML is non-trivial, the schema design is likely to be obtuse and/or broken, even when done by smart people. XML is jus

Any time the semantics represented by the XML is non-trivial, the schema design is likely to be obtuse and/or broken, even when done by smart people. XML is just hard to get right, and hard to evolve gracefully. When you add verbosity on top of that, working with XML over the long haul is an utter pain.