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   Re: [xml-dev] [SUMMARY #1] Why is there little usage of XML on the'visib

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Hi Roger,

Just returned from holidays so I've had to cut most of this discussion.

Can I add that the "visible" web is visible to people, but not 
necessarily to search engines. Others have alluded to it, but here's 
some thoughts on the "twilight zone" of web visibility.

AJAX is changing things. A typical AJAX page cannot be easily searched 
or indexed. The programmatic nature of the page prohibits this unless 
the search engine is going to try executing the javascript to get the 
final page.

Even worse is that the pages often can't be printed so the browser may 
be able to display the page, but it's internal model is inadequate for 
repeated representation and hence printing. Scary.

At this stage I would suggest that there is a lot of (and growing) xml 
use on the web, but it is just not possible to see or measure it 
effectively because of the technologies used to distribute and display it.



Costello, Roger L. wrote:

> Hi Folks,
> Once again, many thanks for your outstanding comments. Below I have 
> tried to recap the core assertions. I am sure that many of the 
> assertions could be worded better or more precisely. Please let me 
> know. And as always, I welcome your critique of the assertions. /Roger
> **
> *There is little usage of XML on the visible Web. That is, the 
> information available to the end user (or his/her browser) is 
> primarily in the form of (X)HTML, not XML.*
> *
> *XML is not appropriate for the visible Web. XML will continue to have 
> limited usage on the visible Web. As Len Bullard says, “**XML is 
> plumbing**”. *
> *On the visible Web, (X)HTML will continue to be the primary markup 
> language for the foreseeable future.*
> *
> *The more a resource makes available its information (in an 
> appropriate way) on the visible Web, the more useful and beneficial it 
> becomes to the Web community.** *
> *Web services are part of the hidden Web, and are useful and 
> beneficial to the Web community only to the extent they are able to 
> contribute or facilitate the availability of information in an 
> appropriate fashion to the visible Web. *
> *Focus your main efforts on making information available on the 
> visible Web in an appropriate fashion such that the benefits of doing 
> so are maximized, and without introducing a detrimental impact.*
> *
> I gratefully acknowledge the outstanding comments from the following 
> people:
> Bryan Rasmussen
> Chris Gray
> Colin Muller
> Dave Pawson
> David Lyon
> Derek Denny-Brown
> Didier PH Martin
> Doug Rudder
> Elliotte Rusty Harold
> Greg Alvord
> Jim Fuller
> Juan Gonzalez
> Len Bullard
> Michael Kay
> Mukul Gandhi
> Richard Salz
> Sterling Stouden
> Tei Oscar Vives
> **
> The visible Web is the portion of the Web that produces information 
> intended for human consumption. In particular, this document focuses 
> on the portion of the Web that produces information to be consumed by 
> humans via a browser. The visible Web is the portion of the Web that 
> produces information that is available to search engines.
> The hidden Web, on the other hand, is the portion of the Web that 
> produces the information intended to be consumed by machines (/i.e., 
> /machine-to-machine interaction).
> !DSPAM:44c1300e10841804284693! *

fn:Rick  Marshall
tel;cell:+61 411 287 530


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