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Bob Wyman wrote:

>      I'm sure this too-long note won't put an end to the 
> concrete vs abstract debate that Tim Bray has reopened... 
> Such issues are so much fun to debate that people won't let 
> them go away.

It seems that to see protocols based on abstract syntax or 
meta-models adopted widely and to get them to live in the places XML 
and ad-hoc Internet protocols based on concrete syntax do now, we'd 
have to terraform those places to be less hostile. I'm inclined to 
retort that abstract approaches should instead evolve to become more 
robust.

That's what I get from your post in any case. It's much like the 
arguments in favour of RDF, FIPA AA or OMG MDA, or past arguments in 
favour of SGML and the OSI stack. There are certain abstract 
approaches I am very fond and by the way, and have worked with 
closely, mainly in the RDF and FIPA worlds, but until each has a 
concrete approach settled on, built out, and supported, I claim 
they'll remain interesting, but marginal technology.

Bill de hÓra


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