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RE: power uses of XML vs. simple uses of XML

• From: "Bullard, Claude L (Len)" <clbullar@i...>
• To: KenNorth <KenNorth@e...>, xml-dev@x...
• Date: Mon, 10 Jul 2000 08:25:14 -0500

Delimit the application and the environment.  

Your example is one of an environment (shipping 
and mail systems) that have local differentiators 
(eg, language, geo-locator naming, etc) but 
have a low rate of change.  The application may 
be changing more rapidly or have a higher degree 
of differentiation.

By example, both the city architecture and 
the city location are related by geo-systems. 
However, while interdependent, the rate of 
change of the river, tectonic plate, forestry, 
etc. are much lower than the rate of change 
of buildings created and demolished.

The schema is a means to define an environment 
and a means to validate/process/shape exchanges 
within that environment.  Because of the rates 
and the local variations, a good designer will 
decouple the schemas and schedule their application 
based on recognition of events within a system 
of event types.

Len Bullard
Intergraph Public Safety
clbullar@i...
http://fly.hiwaay.net/~cbullard/lensongs.ram

Ekam sat.h, Vipraah bahudhaa vadanti.
Daamyata. Datta. Dayadhvam.h


-----Original Message-----
From: KenNorth [mailto:KenNorth@e...]

Walter,

<< the salient rules are those most exactly specific, perhaps unique, to
the particular occasion and environment
<<  That, precisely, is why the schema actually implemented in a processing
instance is, as I described it, effectively a schema of the relationships of
the input data,

Not every application view of data is unique, nor are schemas simply for
processing inputs. 

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