Re: Data Model WD - Schema Components

Hi Jeni,

You are right, the accessor is called derived-by-restriction, not
derived-by-refinement.
Also in Section 8.1, the second sentence of the third paragraph
should just mention *item* instead of *element information item*.
Our goal here was to be inline with XML Schema.

We will fix these typos. At the same time we plan to make significant
improvements to this section for the next round of publication.

Best regards,
Marton Nagy


> Date: Sun, 13 Jan 2002 14:21:45 +0000
> From: Jeni Tennison <jeni@jenitennison.com>
> Message-ID: <33539054239.20020113142145@jenitennison.com>
> To: www-xml-query-comments@w3.org
> Subject: Data Model WD - Schema Components
> 
> Hi,
> 
> In Section 8, there are a number of places where there's a reference
> to a 'derived-by-refinement' accessor - these should be
> 'derived-by-restriction', I think.
> 
> In Section 8.1, the second sentence of the third paragraph states:
> 
>  "The [element-declaration] ([attribute-declaration]) property
>   contains an *element information item* that is isomorphic to the XML
>   Schema element or attribute declaration of the element or attribute
>   information item." (my emphasis)
> 
> Presumably you mean an element declaration or attribute declaration
> information item rather than an element information item? Or do you
> mean that you basically get an element node, called 'xs:element', with
> a 'name' attribute and possibly a 'type' attribute and so on? I think
> the latter is a very bad idea, because (a) a schema might not have an
> XML representation and (b) the same schema could have many XML
> representations, and all of them should be treated the same.
> 
> I guess that you're working on this section, since it's very
> under-specified at present, and Appendix D doesn't conform with the
> description in Section 8.
> 
> Cheers,
> 
> Jeni
> ---
> Jeni Tennison
> http://www.jenitennison.com/
>

Received on Tuesday, 22 January 2002 16:00:53 UTC