RE: [ubl-dev] Restricting UBL datatypes by using xsd:redefine with UDTs

["Crawford, Mark" <mark.crawford@sap.com>]

Stephen,

Why would you want to use xsd:redefine, when the qualified data type is
definied in the underlying metamodel, and the NDR rules specify how to
create a unique type for the QDT?

Kind Regards,

Mark 

 

> -----Original Message-----
> From: Stephen Green [mailto:stephen_green@bristol-city.gov.uk] 
> Sent: Thursday, September 28, 2006 5:14 AM
> To: ubl-dev@lists.oasis-open.org
> Subject: [ubl-dev] Restricting UBL datatypes by using 
> xsd:redefine with UDTs
> 
> Folks,
> 
> Way back Joe was asking about restricting datatypes in UBL subsets
> and using W3C XML Schema to do it, along with the subsetting of
> the elements and/or their types.
> 
> At the time I couldn't see a way to do it as my understanding of
> redefine was so green. I wouldn't say I understand it a lot now
> but at least I found I could do the whole thing almost entirely
> with use of xsd redefine and very little of substitution groups.
> It turns out to be straightforward (relatively) and allows the
> publication of schema files which import, include and redefine
> the existing UBL files either in situ or in a local package: very
> neat and quite cool. Sorry to be so slow with this. Maybe 
> knowing it is quite possible will encourage others struggling
> with using xsd redefine - or perhaps it's just me that's 
> challenged by all this. A tutorial on redefine would be handy
> maybe I'll get time to write one myself now :-)
> 
> All the best
> 
> Stephen Green
> 
> 
> 
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