Thanks David.
I will do some reading based upon your response, and would
welcome any urls you can send to broaden my education. A related question is "If
you knew the three vocabularies you needed to transform to, how would you go
about evaluating different proposed schemas inside your own dialect." This
knowlege makes the question different then the generic be ready to transdorm to
anything, which would suggest schema that are fully normalized in a way that few
schemas I have seen are.
In the last 20 years, I have transformed a lot of data into
other data, but I haven't sat down and formally though about what structures
would be pre-adapted for ease and completeness of transformation - well except
in the usual dba formal normalization kind of way; and I'm not sure that those
reflexes are entirely usefull for this scenario.
I'm thinking that there is a more generic rules that
suggests that a quality XML schema, that is well though out, can be recognized
by the ease with which one can generate a working XSLT - and that this issue is
related to what one wrestles with in XSLT conformance.
tc