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Alessandro Triglia wrote:
> Robin Berjon wrote:
>>Alessandro Triglia wrote:
>>> Will XML Schema cease to be a true "XML schema language" as soon as (and
>>> if) the W3C standardizes a schema-dependent alternative binary
>>> representation for XML (assuming they do so)? Certainly not.
>>
>> Would you care to expose why you are so certain?
>
> Would you say that the nature of XML Schema would change if a W3C BiM-alike
> were introduced, to the point that XML Schema could no longer be
> appropriately called an "XML schema language" and would need a name change?
I don't know if it'd need a name change, but yes it would change its
nature, at least slightly, and shift the balance of the XML world (also
at least slightly).
> Would XML Schema lose its ability to describe and constrain XML documents?
Obviously not.
> Something would change, I agree. One of the things that would change is the
> way some people would look at the language (in some cases, schemas would be
> used to always generate binary encodings rather than XML). Some people
> would begin to consider XML Schema "syntax-agnostic" at that point. Others
> would not.
Precisely. And that is *very* different from the way in which (many)
people see a schema today.
> Again, one could argue that this is the present, not just a possible future.
It's been technically feasible (and done) for quite a few years now, but
the curve isn't at the point at which I'd say it's the present. Not
quite just yet, though it ain't so far.
> The BiM and other schema-based binary representations can be regarded -
> using ASN.1 terminology - as "encodings of abstract data types defined in
> XML Schema", XML 1.0 being another possible encoding. This concept may seem
> strange to people used to think in terms of "syntax", but makes a lot of
> sense to other people.
Well I must say that despite some extensive work in the area, it still
sounds at least a bit strange to me, especially the "XML 1.1 being
another possible encoding" part ;) There's a chasm to bridge here, and
bridging it should yield some interesting results I'd think.
--
Robin Berjon <robin.berjon@expway.fr>
Research Scientist, Expway http://expway.com/
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