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RE: What does WSDL describe?

From: <paul.downey@bt.com>
Date: Wed, 29 Oct 2003 11:25:28 -0000
Message-ID: <2B7789AAED12954AAD214AEAC13ACCEF0FFF1CE9@i2km02-ukbr.domain1.systemhost.net>
To: <distobj@acm.org>, <sanjiva@watson.ibm.com>
Cc: <www-ws-desc@w3.org>

To me this is really a service design issue: If 'foo' simply secures, rather than process the document, then i'd call it 'submitOrder' and expect to have to call other foos before i actually bought a motorbike.

I'd accept calling it messageExchange so long as continuing to generate code from WSDL or WSDL from code isn't treated as heresy.


-----Original Message-----
From: Mark Baker [mailto:distobj@acm.org]
Sent: 29 October 2003 05:13
To: Sanjiva Weerawarana
Cc: www-ws-desc@w3.org
Subject: Re: What does WSDL describe?

On Wed, Oct 29, 2003 at 08:33:37AM +0600, Sanjiva Weerawarana wrote:
> Can you explain what the difference between that and Savas' model is
> please? Please use something non-committal like "foo" for <operation>
> so that we can talk rationally without having mental connotations
> on what these words mean.

Alright, but I'm getting really abstract here ...

Consider the data "12345", suitably SOAP-ized.  If that is sent
to a service, and we get a successful response back, what are the
possible interpretations of that success?

One is simply that the data was "processed".  Behind the scenes,
perhaps it was stored in a file, added to another number, subtracted
from some other, etc...  But that's *totally invisible* to the sender;
to it, "success" just means "processed".

A different interpretation of "success" could be that the recipient
interpreted some symbol in the data - the "1" perhaps - to be a specific
request that the opaque part of the data - "2345" - be, say, spit out on
a printer.

Any better?

Mark Baker.   Ottawa, Ontario, CANADA.        http://www.markbaker.ca
Received on Wednesday, 29 October 2003 06:26:38 UTC

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