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   RE: Advanced use of XML schema's

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  • From: "Bullard, Claude L (Len)" <clbullar@ingr.com>
  • To: David Valera <dvalera@pcl-hage.nl>, xml-dev@lists.xml.org
  • Date: Tue, 11 Jul 2000 08:33:22 -0500

You are suggesting a good approach:  treat it as a 
dynamic definition based on context or event.  This 
is one of the reasons for casting schemas into the 
XML syntax such that XSL or DOM APIs can access 
the contents.  Load the schema, set the values, 
then process the document.  This is the kind of 
capability the markup community has wanted/needed 
and has been advocated since at least the late 
eighties.   The contractual issue (if you 
have this issue) is to show that the rules you 
apply to the process result in a definition in 
accordance with the contract for the deliverable.  
This can be tied to the formal name which 
should not be an address.

This may be a complicated process to design and 
in some applications will begin to resemble the 
problems of using real time systems (preserving 
correct states during cascades and preventing 
malformed instances).
It is a tradeoff between procedural rules and 
a weak validation.  This is an interesting topic.  
What do others think?

Len Bullard
Intergraph Public Safety

Ekam sat.h, Vipraah bahudhaa vadanti.
Daamyata. Datta. Dayadhvam.h

-----Original Message-----
From: David Valera [mailto:dvalera@pcl-hage.nl]

1. make use of a script that would apply a XSLT to the general schema
producing the companyspecific schema. This is IMHO quite a good solution
since you will only have to maintain the general schema and the XSLT of each


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