The schemas we expect people to use are:

1) For an issues list with text content in xhtml:
    exit-xhtml.xsd
    exit-basic-xhtml.xsd    

2) For an issues list with text content in xmlspec:
    exit-xmlspec.xsd
    exit-basic-xmlspec.xsd

The other schemas (imported by those) require common.xsd.  We
have not <xs:include>d them since some processors consider
multiply included definitions to be an error. Instead, only the
toplevel schemas include common.xsd (and redefine the block and
inline types).

One may validate the other schemas in this directory through
other means, e.g., by including both the schema and common.xsd on
the command line.

------------------
Basic v. Full Exit
------------------

In addition to a simpler content model, Full Exit allows:
 
      a) define actions (action.xsd).
      b) define persons and groups
      c) represent the TAG's "accepted" transition
      d) Extend exit through categories
      e) Provide additional context.
      f) Associate issues with actions.
    

For more information about ExIT, see
   http://www.w3.org/2003/12/exit/