[
Lists Home |
Date Index |
Thread Index
]
David Lyon said:
>
> Often Business data doesn't need a formal specification or schema.
>
> This requirement has really held back xml or at least kept it in the
> domain of tightly coupled systems. We need to go loose-coupling in
> future, not insist that a programmer has sat down beforehand and work
> out the schema for every single document.
>
> Let me give you a real world example situation.
>
> Receptionist wants to type a shopping list. Must get schema created by
> IT. Loaded on a web server. Schema loaded on the web server. Validated.
> It is so complicated and requires so many resources that it just doesn't
> happen.
>
Let me another example from science. I want write E=mc2 in a XML format i
would write
<math xmlns:mml="http://www.w3.org/1998/Math/MathML";>
<mml:apply>
<mml:eq/>
<mml:ci>E</mml:ci>
<mml:apply>
<mml:times/>
<mml:ci>m</mml:ci>
<mml:apply>
<mml:power/>
<mml:ci>c</mml:ci>
<mml:cn>2</mml:cn>
</mml:apply>
</mml:apply>
</mml:apply>
</math>
and one would wait validation against restricted DTDs (if you are using
also some SVG then would change from the typical XHTML+MATHML DTD),
storing and transmision of this verbose code, specific plugin or native
browser at the client side.
In a full environment we would obtain specific tools for generating the
XML code, special mimes, special extensions, special server side plugins,
maybe a special input syntax and conversor, special non-web fonts
dowloaded and installed at the client, transformation of the code before
rendering, transformation of the code before printing, transformation of
the code before aural rendering, lack of semantic content...
Then i (as millions of others) wrote ASCII text and e-mail it or TeX code
and send.
>
> David
>
Juan R.
Center for CANONICAL |SCIENCE)
|
