• To: xml-dev@l...
• Subject: Re: An alternative formulation of the document-centric/data-centric XML divide
• From: Sean McGrath <sean.mcgrath@p...>
• Date: Thu, 03 Jun 2004 14:20:10 +0100

[Miles Sabin]

 >I see the graphs for doc-centric XML, but have you got any publishable
 >evidence to back up your claim that data-centric XML has uniform
 >element distributions?

I don't use XML too much for data-centric work (Excel, MySQL etc. are soooo 
good at that.).

However, I have to hand an XML file of the form:

<Records>
<Record>
<ID>[number]</ID>
<ST>[date]</SD>
<SL>[text]</SL>
<LT>[text]</LT>
<LL>[text]</LL>
</Record>
...
</Records>

The TagShare analysis is pretty predictable:

Element Occurence
------- ---------
ST              842
SL              842
Record  842
LT              842
LL              842
ID              842
Records 1

Things get more interesting when you look at de-normalized tables, when you 
"un-flatten" the model you create for RDB work. I suspect when you do that, 
you get closer to a power law distribution.

Being an insufferable doc-head, I would of course argue that this points to 
documents - not inter-twingled tables - being the true Tao of information:-)

Sean

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