[ubl-cmsc] Schema Derivation -- Do We Need It?

[Matthew Gertner <matthew.gertner@schemantix.com>]

I am attaching a discussion document that I have written in the hope of
sparking some discussion on one of the topics raised during our call last
week: do we actually need to use the derivation features of schema languages
like XSD when creating new types through the application of context. I have
modestly called it version 0.1, since I think it could probably use a lot
more discussion, work and fine-tuning. It is probably a decent start to the
discussion, however.

At this point I am primarily interested in knowing whether *anyone* out
there is with me on this. Am I a kook for believing that XML schema-driven
software development will be a popular practice in the future? Any and all
comments would therefore be most appreciated.

If there is some agreement that this is a valid issue and approach to the
problem, I have in mind some forums (like the XML-Dev mailing list) where we
could post a later version of this paper to get more valuable input from
technical experts who are not participating directly in UBL.

Cheers,
Matt

PS: Many apologies for sending out a Word document. I'll make a PDF version
tomorrow and send it to the list.

Schemas and Derivation.doc