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RE: Top cloud in triangle/rectangle diagram

From: David Booth <dbooth@w3.org>
Date: Fri, 04 Oct 2002 21:06:20 -0400
Message-Id: <>
To: "Sedukhin, Igor" <Igor.Sedukhin@ca.com>, <www-ws-arch@w3.org>
Cc: "Cutler, Roger (RogerCutler)" <RogerCutler@ChevronTexaco.com>

At 05:53 PM 10/4/2002 -0400, Sedukhin, Igor wrote:
>When a Service advertises itself to the Requestor, does it not play a role 
>of an Advertiser? Roles can collapse into one compound role, but from the 
>logical point of view they are still atomically separate in the architecture.
>So, it seems that Slide 4 [at 
>http://lists.w3.org/Archives/Public/www-ws-arch/2002Oct/0062.html ] says 
>that roles of Service and Advertiser are collapsed, and if the right 
>circle said Service/Advertiser it would be very valid interpretation of 
>the triangle. I don't think there is a contradiction with the triangle and 
>three roles in it.

Yes, I see what you mean.  You could describe it that way, but that's still 
assuming that the role of "Advertiser" is required as a significant 
architectural component.  It could be for a particular EXTENDED 
architecture, but I don't think it's needed or desirable for our BASIC 
architecture.  I think the scenario described in 
http://lists.w3.org/Archives/Public/www-ws-arch/2002Oct/0072.html helps 
make this clearer.  (That scenario was actually inspired by the business 
need that Roger Cutler described at our last F2F, incidentally.)

David Booth
W3C Fellow / Hewlett-Packard
Telephone: +1.617.253.1273
Received on Friday, 4 October 2002 21:05:04 UTC

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