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Hmmm...Unless I'm missing something, this all should be able to be
handled in XML Schema. What is it about it that makes you think
otherwise?
Kind Regards,
Joe Chiusano
Booz Allen Hamilton
Strategy and Technology Consultants to the World
"Cross, Neal - Senior Developer" wrote:
>
> I have found that a schema is of no use to us at all because of the way that our XML is structured:-
>
> <section id="report definition">
> <section id="officers">
> <section id="secretary" limit="2">
> <section id="name"/>
> <section id="appointment date"/>
> <section id="date of birth"/>
> <section id="occupation"/>
> <section id="address"/>
> <section id="disqualified flag"/>
> <section id="disqualified reason"/>
> <section id="disqualified start"/>
> <section id="disqualified end"/>
> <section id="previous address" limit="1">
> <section id="address"/>
> </section>
>
> etc, etc.
>
> Now, how do I create a schema to represent this considering that is is indexed by the attribute value of id?
>
> -----Original Message-----
> From: Philippe Poulard [mailto:Philippe.Poulard@sophia.inria.fr]
> Sent: 08 September 2004 12:54
> To: xml-dev@lists.xml.org
> Subject: [xml-dev] [schema] which assertions can't you express ?
>
> hi,
>
> An XML Schema is the expression of some assertions expected on an XML
> document class. Assertions on XML documents ensure that applications
> will process them without causing faults. Expressing assertions with
> schemas ensure that applications developpers will spend most of their
> time in designing data process and few of their time in controlling them.
>
> Any schema technology is designed to cover numbers of assertions
> expressed. However, if think that the existing schema technologies (DTD,
> W3C XML Schema, Relax NG, Schematron) can't express some constraint types.
>
> I have some ideas of what these constraint types might be, but I'd like
> to know, helped by your own experiences, which kind of useful assertions
> can't be expressed with these schema technologies (so frustrating).
>
> For example :
> -i'd like that the number of occurrences of an element is equal to a
> value of a given attribute (Schematron could do that)
> -i'd like that the value of a given attribute exists in my RDBMS
> -etc...
>
> Thanks in advance
> --
> Cordialement,
>
> ///
> (. .)
> -----ooO--(_)--Ooo-----
> | Philippe Poulard |
> -----------------------
>
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--
Kind Regards,
Joseph Chiusano
Associate
Booz Allen Hamilton
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