Re: [clr-dev] Genericode / CVA validation

["Anthony B. Coates (DES)"<anthony.coates@documentengineeringservices.com>]

I have myself recently written code in XSLT for a client that dynamically  
validates codes against genericode code lists (not CVA, as the way codes  
are identified for this client isn't XPaths).  Where performance isn't an  
issue, and pre-compiling is a nuisance, it's fine, and compared to the  
various other validations that are being done, the dynamic code list  
validation isn't a significant overhead.

XSLT works well enough for simple genericode code lists, e.g. with a  
single key and no references to external files.  For more complicated  
situations, XQuery would probably be easier, but I'm yet to see a working  
implementation of Schematron in XQuery (although I know people are looking  
at this, does it already exist?).

Cheers, Tony.

On Thu, 27 Nov 2008 15:11:46 -0000, G. Ken Holman  
<gkholman@cranesoftwrights.com> wrote:

> At 2008-11-27 15:43 +0100, Linda van den Brink wrote:
>> I am working with a customer in The Netherlands who are now starting
>> to use Genericode in some of their XSDs.
>
> Excellent!
>
>> Because some of their code lists can change pretty regularly, they
>> don't want to use the example validation implementation provided by
>> CraneSoft. Their objection is that the values from the code list are
>> hard coded in the generated Schematron and XSLT. They don't want to
>> have to regenerate the Schematron and XSLT each time a code list
>> changes.
>>
>> I'm wondering if it is easy to change the implementation so that the
>> Schematron reads the code lists dynamically using the document()
>> function, or if maybe the latest version already does that?
>
> It doesn't do that right now, but that feature has been added to the  
> list for consideration.  Note that just last week Rick Jelliffe talked  
> about using the document() function for code list validation.  It seemed  
> to me at the time an interesting consideration for CVA2Sch ... you've  
> confirmed it!
>
> I'm in the process of moving the CVA2Sch tool into an Apache project, so  
> this feature can be added as part of that process.
>
> Thanks, Linda!
>
> . . . . . . . . . . . . . Ken
>
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-- 
Anthony B. Coates
Associate Director
Document Engineering Services (Limited)
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