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Re: Can XML Schemas do this?


w3c xml attribute ordering
>if Element orders are enforced (at least in
>W3C XML Schemas), why are Attribute orders not?

Because attributes are conventionally used to hold metadata, as opposed
to data; that is, they express properties of an element.  For instance,
if one were to state that they would like a car that is "red, 2-door,
and 6 cylinder" (without implying priority), they could just as well say
"2-door, 6 cylinder, and red" and not sacrifice the meaning.

Joe Chiusano
Booz | Allen | Hamilton

"Bryce K. Nielsen" wrote:
> 
> > Highly application-dependent.
> >
> > <procedure><name>Replace Part#13316 in Boeing 777 Wing</name>
> >    <steps>
> >      <step>Ensure electrical systems are inactive per testID 32297</step>
> >      <step>Ensure no fuel vapor concentrations per testID 35151</step>
> >      <step>Open hatch and stick your head inside</step>
> >      </steps>
> >    </procedure>
> >
> > Sometimes order matters -Tim
> >
> 
> I'm not saying that explicit ordering should be removed, I'm just saying
> that schema languages should allow both. It gives me a bad taste in my mouth
> to tell my partners that while the ordering of the nodes doesn't really
> matter, in order for the document to validate against my schema it has to be
> in tell-tell order.
> 
> In the above case, it's a good thing those are elements, not attributes,
> which brings the next question if Element orders are enforced (at least in
> W3C XML Schemas), why are Attribute orders not?
> 
> -BKN
> 
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