Re: [xml-dev] Statistics of real published xml data

[Michael Kay <mike@saxonica.com>]

Well, before you can measure anything, the first thing to do is to 
define what you're measuring: what exactly do you mean by "real 
published XML data". I understand the "XML" part, but what would you 
exclude as being "not real", "not published", or "not data"?

For example, does "published" include both free and paid-for? Does it 
include content that is only available to selected recipients, e.g. 
travel information "published" exclusively to travel agents? Does "data" 
mean that you exclude formats such as XHTML, RSS, or MusicXML?

Once you've got a good definition (which is hard) you can start trying 
to collect some statistics (which is much harder). My suggestion would 
be to take just one small segment of the market - for example geographic 
data - and try to understand that one area and measure the activity in 
that segment.

Alternatively, you've hinted that you might want to focus on one 
particular means of publishing - "publish/subscribe systems". If you can 
define those systems clearly and unambiguously (again, that's hard) then 
you could tackle the problem by looking for people who are using that 
technology, and investigating what they are doing with it. But this 
seems a little odd to me - it's like trying to get statistics on the 
amount of marketing bumph produced by looking at one particular way of 
printing the stuff.

Michael Kay
Saxonica


On 07/06/2010 19:05, ycao5@scs.carleton.ca wrote:
>
> Hello everyone,
>
>    I want to do some investigation on the statistics of real published 
> xml data, especially for data in xml-based publish/subscribe system. 
> Please give me some suggestions if you have this information. Thank you.
>
> Yang
>
>
>
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