RE: [xml-dev] Does the XML syntax have an underlying data model?

["Costello, Roger L." <costello@mitre.org>]

Michael Kay wrote:

> The Infoset spec refers to the XML spec, but not the
> other way around. In terms of layering, the Infoset
> is an overlay on top of XML, not an underpinning. 
> So it's not an "underlying" data model, rather an
> "overlying" one.

> Yes, the Infoset can be taken as the data model for
> XML. But it is an after-the-event rationalisation;
> it did not influence the design of XML. It also came
> too late to influence other specifications; for
> example in the XPath data model, namespace
> nodes have parents, whereas in the Infoset,
> namespace information items do not. 

Wow! Wow! Wow!

I was not aware of this. I am shocked.

Thank you Michael.

/Roger