XML Linking and Style

Just a starter comment - 

was it really necessary to bludgeon readers with an Infoset-based
"LinkSet" terminology defined using W3C XML Schema?

Reading through this, I'm not finding much good reason (beyond
type="xsd:uriReference") for using either W3C XML Schema or the
"information item" vocabulary of the Infoset.

On foundations, this looks good.  Defining an underlying model is a good
place to start.  On presentation, it seems remarkably and unnecessarily
obfuscated.  The content of the document does not justify its difficulty
level.