Another way to do this, which may or may not be convenient, is to use an 
XSLT script to tailor a schema for each of your hardware types.  XSLT can 
read multiple documents, so you could have one input document that's a 
skeleton schema, and another with the constraint values, using XSLT to 
merge them.  If you prefer, you could burry the entire skeleton into the 
XSL stylesheet as a template, using a single input document with the key 
values. 

--------------------------------------
Noah Mendelsohn 
IBM Corporation
One Rogers Street
Cambridge, MA 02142
1-617-693-4036
--------------------------------------








"Bryce K. Nielsen" <bryce@s...>
Sent by: xmlschema-dev-request@w...
02/16/05 12:42 AM

 
        To:     <xmlschema-dev@w...>
        cc:     (bcc: Noah Mendelsohn/Cambridge/IBM)
        Subject:        Re: Facets



> This method only works if I had previous knowledge of the enumerated
values.
> In my case users create their own set of Types (not a subset of
acceptable
> values by my schema, but literally using their own naming conventions).
For
> instance, depending on the hardware under test, the user will compose a
> totally different measurement Types.
>

Ah. Well, W3C XML Schemas don't inhierently support this "dynamic" schema
contruction. You will probably need to use a stylesheet to validate, or
perhaps schematron.

Bryce K. Nielsen
SysOnyx, Inc. (www.sysonyx.com)
Read the origins of xmlDraft, the Smart XSD Editor:
http://www.sysonyx.com/xml-schema-editor






From Farid.Mahini@L... Thu Feb 17 17:13:12 2005
Received: from bart.w3.org ([128.30.