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Re: rules for XML?

• To: xml-dev@l...
• Subject: Re: rules for XML?
• From: Mike Champion <mc@x...>
• Date: Sat, 01 Feb 2003 16:31:27 -0500
• In-reply-to: <GHEDLDCGLHKOAICLGHKGIEHMCAAA.news@o...>
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On Sat, 1 Feb 2003 09:58:37 -0700, Owen Walcher <news@o...> 
wrote:


>
> I am looking to
> come up with a set of "codd-like" rules that lets me used well-formed XML 
> in malleable/adaptive applications without the need for a DTD or Schema.

I presume you've seen http://www.xml.com/pub/a/2002/11/13/normalizing.html 
?
That's the closest to Codd-like rules for XML normalization that I've seen. 
Or http://www.eecs.umich.edu/db/timber/files/physical.pdf which is the 
closest thing I've seen to an "XML Algrebra" comparable to Codd's 
Relational Algebra.  I guess the XQuery people would point to their formal 
semantics, but if that is "Codd", we need a "Date" to explain it to 
ordinary mortals "-)


>
> Have two completely different semantics, in that the attribute
> pattern="Argyle" (in my opinion) should not be used because it does not
> further specify the size of the sock.

As others have noted, Here Be Dragons ... or at least the Spanish 
Inquisition ready to burn heretics.    Enter at your peril, and with your 
flameproof suit fully engaged.

>
> Is anyone else working along these lines to move programming from the
> cottage industry it now is into the current century?

Sigh, them's fightin' words to some of us.  I've heard about plans to move 
programming into the current century, Real Soon Now, for about 30 years.  
Maybe one of these centuries it will actually happen, but I suspect that 
your thesis committee will have retired by then :-)

Large chunks of XML practice are INTRINSICALLY "cottage industry" rather 
than "engineering," especially from people who think of it as marked up 
text rather than serialized objects.  You might have some luck automating 
the programming of objects serialized as XML, but the XML aspects of that 
would be incidental to the OOP aspects I'll guess.

Just my $.02 ... I wouldn't want to discourage anyone from tackling the 
hard problems of comparing, contrasting, reconciling, and synthesizing 
typical XML theory/practice with OOP and RDBMS theory/practice.  I think 
these are absolutely critical areas for academia to get a better handle on.

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• References:
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