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Re: Issues to think about in the MOM

From: Mark Baker <distobj@acm.org>
Date: Thu, 20 Nov 2003 07:13:34 -0500
To: Frank McCabe <frankmccabe@mac.com>
Cc: www-ws-arch@w3.org
Message-ID: <20031120071334.R27273@www.markbaker.ca>

Hi Frank,

On Wed, Nov 19, 2003 at 10:17:30PM -0800, Frank McCabe wrote:
> 3. The SOAP notion of an envelope is essentially the outer wrapper of 
> the message infoset.

SOAP 1.2 is unclear about this.  In some cases in the spec, that
appears to be the case, but in others, it is not.  There's been
discussions about this in the XMLP WG, e.g.

http://lists.w3.org/Archives/Public/xml-dist-app/2003Feb/thread.html#5

Also, the WSDL WG seems to just now be confronting this issue, e.g.

http://lists.w3.org/Archives/Public/www-ws-desc/2003Nov/0116.html

I've always maintained that the SOAP message is more than the SOAP
envelope/infoset.  It just makes intuitive sense to me given how
protocols are typically designed using layering & encapsulation.

So ...

> 3a. In effect, is an address that is used by a transport mechanism part 
> of the message or not?

Yes, and I believe that holds for both application and transport
protocols.  So not only is the URI to which a SOAP envelope is POSTed
part of the message, but so are the IP and MAC addresses (at least in
the HTTP/TCP/Ethernet case).

FYI, this also relates to the group's issue #2;

http://www.w3.org/2002/ws/arch/2/issues/wsa-issues.html#x2

Mark.
-- 
Mark Baker.   Ottawa, Ontario, CANADA.        http://www.markbaker.ca
Received on Thursday, 20 November 2003 07:11:13 GMT

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