Re: current version of XML presentation syntax files

one quick comment
from:
>     http://www-db.research.bell-labs.com/user/pfps/owl/schema-example.xml

[[
<!--  range="xsd:integer" ?
  -->
  <owl:DataType rdf:ID="xsd:integer" />

 ]]

if rdf:ID is to be used, the value should be an xml:NCName (or xsd:ID) not a
QName... of course if you want to use QNames here then don't use "rdf:ID"
rather you can define "owl:ID" as you please. In general I am squeamish
about reusing any namespace qualified name for an attribute or element in a
grammar not intended for by its namespace. Think of QNames as a way to find
documentation about an element or attribute -- the namespace name URI ought
point to some document from which the attribute or element name may be
documented... in this case the lone rdf:ID is a fish out of water.

Jonathan