xml-dev - RE: Who would "bless" a Schema subset? (was Re: XML Schemas: Needs Marke

["Simon St.Laurent" <simonstl@simonstl.com>]

At 12:58 PM 2/12/00 -0700, Arnold, Curt wrote:
>It has been hinted to me that the next XML Schema draft would be more
>"layered".  So the "blessing" could be from the W3C.

If such a thing were to happen, I think a lot of us would cheer!

>It is obvious that there are definitely a lot of features that 
>make authoring easy (such as imports, includes, type inheritance, 
>equivClasses) that should be "compiled" or "preprocessed" out before so
>that every validation attempt doesn't have to repeat the effort of 
>fetching every imported schema, etc.  

I'd really like to see this 'result' schema vocabulary specified formally
somewhere, even if it isn't at the W3C - it would make writing processors
much simpler, especially if the project you suggest below comes to pass.

>I've suggested an open-source effort to create XSLT transforms 
>that perform this translation from the authoring schema to the 
>validation subset and have gotten a few volunteers.  I've been 
>waiting for the next draft of schema and some place to host the 
>effort to become apparent.  

This would be great to see.  Standardized components and a standard set of
simplifying transformations would make life much easier.

Now if we could take the Schematron approach of using XSLT to check
documents against the schema - well, that would be interesting.  (And as is
well known, I'm not even a large XSL fan.)

Simon St.Laurent
XML Elements of Style / XML: A Primer, 2nd Ed.
Building XML Applications
Inside XML DTDs: Scientific and Technical
Cookies / Sharing Bandwidth
http://www.simonstl.com