Hi Paul,
Sounds interesting and like a reasonable subject for a presentation,
but what I meant by "controlling the Schematron
 elegantly across a set of schemas" was the need to control Schematron
behavior across a set of XML Schemas, i.e. the external documents
requirement but from the starting point of being able to define a set
of xml schemas to operate across and having the schematron schemas
applied across the set but also interact within the set - perhaps via
an extension mechanism or by having a dsl for controlling the sets. I
have actually received a mail that was close to my requirements, but
it was not publically sent to xml-dev. maybe not ready for announcing
their project yet.

Cheers,
Bryan Rasmussen

On 1/6/06, Paul Spencer <xml-dev@b...> wrote:
> I have used Schematron for tailoring XML schemas for specific requirements.
> I came across this defining specifications for using the Election Markup
> Language for messages between electoral registers in the UK. There was no
> need to access external documents, so I can't help there, but I had to
> produce 15 Schematron schemas, each using a subset of a larger set of rules.
> I think that this might be what you mean by "controlling the Schematron
> elegantly across a set of schemas".
>
> I did this by defining each of the rules in a spreadsheet (with columns for
> rule, context, assert/report etc), then having a column for each of the 15
> message types saying whether that rule applied. I then used a macro to
> generate some simple XML from this and then a stylesheet to produce the 15
> Schematron schemas under the control of a simple ASP script. I expect a real
> programmer could find a better way. Apart from the ease of only modifying a
> single spreadsheet for any changes, this had the advantage that the
> spreadsheet was much easier for the software suppliers that would be using
> the Schematron to understand.
>
> I have submitted this as a case study for XTech 2006.
>
> Regards
>
> Paul Spencer
>
> > -----Original Message-----
> > From: bryan rasmussen [mailto:rasmussen.bryan@g...]
> > Sent: 04 January 2006 13:08
> > To: xml-dev@l...
> > Subject: [xml-dev] schematron for xml schema validation
> >
> >
> > Hey
> > I'm doing a little schematron for validation of spec required xml
> > schema structure, some of the validation rules cannot be done by
> > schematron itself as it involves doing validation across external
> > documents (I am focusing on a schematron that will work in all
> > implementations so use of document function etc. not doable.)
> >
> > Anybody have experience with this problem, ideas for controlling the
> > schematron elegantly across a set of schemas?
> >
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