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Re: [xml-dev] Abandon the (mistaken) belief that XML attributes provide"metadata" and set yourself free to explore capability-based designs

> Consider this XML snippet:
>    <altitude units="feet">12000</altitude>
> I have heard it stated:
>     The units attribute provides data about the
>     element's data. That is, units provides
>     metadata.
> However, the XML specification makes no such claim about attributes providing "metadata". This is what the XML specification says:
>    Attributes are used to associate name-value pairs with elements.
> And then the specification goes on to describe the specific syntax for attributes.
> Thus, attributes don't provide data about an element's content. Attributes don't provide metadata.

That's a bit like arguing "The XML specification doesn't say that 12000 
is an integer. Therefore 12000 is not an integer."

Michael Kay

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