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RE: Fwd: Data versioning strategy: address semantic, re lation

  • From: Len Bullard <len.bullard@u...>
  • To: orchard@p..., noah_mendelsohn@u...
  • Date: Mon, 17 Dec 2007 13:09:13 -0600

RE: Fwd:  Data versioning strategy: address semantic
Thanks Dave.  I'll reread the article.

I agree syntactic capability can be reasonably defined.   XML is proof of it
by one means though there are others.  As we know from the TAG discussions,
it gets very difficult with semantics.

Mindful of Noah's admonition about the irritability factor of this list,
I'll defer adding to this thread more ruminations regarding how to identify
and scope operation sets over discrete data sets.

len


From: Dave Orchard [mailto:orchard@p...] 
 
Hi Len,

Another article might help..

http://www.xml.com/pub/a/2006/12/20/a-theory-of-compatible-versions.html

One of the things that we have not been able to define at the TAG, and are
currently shying away from, is defining information or
semantic compatibility.  
My estimation is that syntactic compatibility can be defined in a reasonable
amount of time, but that defining how sets of
information or semantics are compatible is a doctoral thesis on it's own, if
not more.  Let me know if you (or anybody else) know(s)
of something even modestly straightforward on how compatibility of
information could be defined in any kind of mathematical sense,
set or otherwise.

Cheers,
Dave 

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