First draft of XML Data Module

Here's the first cut at refactoring <instance> alone out of the XForms
Instance module.  I have a couple of questions inline as editorial
comments, namely:

1. How do we want to handle xforms-link-exception?  Normally it's targeted
at <model>.  I suggest here it targets <instance> since this module can be
used alone.  Do we depend on it bubbling to <model> when used there?  Do we
create a new event just for this module?  If so, should we change the name?

2. What's the consensus in terms of supporting schemas on data instances?
Again, when used alone (no model) it might be useful to allow for schemas,
for built-in types, for in-line type references.  No bind constraints of
course.  My sense is not to do this but I'm just checking...

3. What about the name?

4. How should I reference Common attributes?

We can discuss on the list or schedule some time on Wed for the
above...Charlie

(See attached file: index-all.html)

Charles Wiecha
Manager, Multichannel Web Interaction
IBM T.J. Watson Research Center
P.O. Box 704
Yorktown Heights, N.Y.  10598
Phone: (914) 784-6180, T/L 863-6180, Cell: (914) 320-2614
wiecha@us.ibm.com