[USTF]EDI-like Usage Case - XMLSpec Version

Attached is an XMLSpec version of the EDI-like Use Case I have been working
on, along with the resulting HTML.  The text contains some new material
based on various discussions at the F2F.

This document is actually "almost" in XMLSpec.  Hugo very kindly used an XSL
stylesheet to make an initial conversion to XML and I have reworked it as
seemed appropriate, using the Travel Reservations Use Case document as a
guide.  There were some things, however, that I could not get right because
I don't have the information (and possibly other things I didn't get right
just from ignorance):

1 - The references to the DTD and XSL point to the same directory as the
document itself.  This doesn't seem to be the way things end up on the W3C
website, but the W3C directory structure is incompatible with my working
environment.

2 - The document refers to its own URL in the header, but I have no idea
where it will end up.

3 - There seem to be some timedate stamping features in the Travel
Reservation document that I am sort of faking here, since I don't know what
is generating them.

 <<ws-edi.xml>>  <<ws-edi.htm>>