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RE: Trouble with data schema

From: Giles Hogben <giles.hogben@jrc.it>
Date: Wed, 06 Jul 2005 09:27:46 +0200
To: "'Rigo Wenning'" <rigo@w3.org>, "'Lorrie Cranor'" <lorrie@cs.cmu.edu>
Cc: public-p3p-spec@w3.org
Message-id: <001101c581fc$34b9ca20$5f2abf8b@cs.jrc.it>

I would like to propose a simplification which there is still time to put in
the spec.
We include categories in the Base Data Schema for backward compatibility -
but we disallow them in custom schemas from now on.
If you want to put in broad categories, there's nothing stopping you - you
just have to make them into data elements which subsume the narrower
categories. There's no need for a completely different and confusing syntax.
Yes it's because of XSD. Basically because each data element takes a subset
of categories from a global set, this is only possible with a custom data
type (or at least that's the only way we could find to do it and we
consulted some XML lists)...

-----Original Message-----
From: public-p3p-spec-request@w3.org [mailto:public-p3p-spec-request@w3.org]
On Behalf Of Rigo Wenning
Sent: Tuesday, July 05, 2005 17:13
To: Giles Hogben
Cc: public-p3p-spec@w3.org
Subject: Re: Trouble with data schema


Am Tuesday 05 July 2005 16:17 verlautbarte Giles Hogben :
> Hmmm you're right that is what the XSD says - then there is an error 
> with the spec examples - the problem I now remember was with XSD - how 
> to do a global data type which you can then specialize.

Questions:

1/ Should I correct the examples?

2/ is the issue of specializing xsd a prob of xsd?

Best, 

Rigo
Received on Wednesday, 6 July 2005 07:28:17 GMT

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