Re: [xml-dev] RE: Data Interoperability ... Why do some XML vocabularie

[David Carlisle <davidc@nag.co.uk>]

On 20/08/2010 12:57, Costello, Roger L. wrote:
> 2. Data interoperability is not achieved through shared understanding of the XML vocabulary. Data interoperability is achieved through shared usage of the Prime App.
>

I'd say that is the most extreme opposite of the XML (SGML) philosophy 
that one could imagine.

You can have a binary opaque format and a unique application that 
processes that data, or...

You can take the view that data is the primary thing and so long as the 
data is encoded in a documented (or even partially self documenting) 
format such as XML, different applications that may use completely 
different internal models may share the data effectively.

It would have been a disaster if every XML process had had to use 
whichever XML parser came first, or had to use the DOM for example.

Why should Maple interpreting MathML use any code shared with a browser 
displaying the same MathML? What is the Prime application?

David


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