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Re: Synthesis of the proposals for issue 64

From: Mark Baker <distobj@acm.org>
Date: Thu, 17 Jul 2003 22:46:46 -0400
To: www-ws-desc@w3.org
Message-ID: <20030717224646.E4241@www.markbaker.ca>

Hi Jacek,

On Thu, Jul 17, 2003 at 09:47:06AM +0200, Jacek Kopecky wrote:
> In WSDL, especially in the HTTP binding with URL replacement, we seem to
> be modeling things that are greater than single HTTP resources. In HTTP
> services, the model has a bunch of related resources and hypermedia as
> the state machine, where high-level application operations are performed
> by various transitions and invoking the HTTP methods. In WSDL, we model
> the high-level operations and group them into Interfaces.

That's a brilliant summary, Jacek.

> Therefore the HTTP application-protocol interface is not really
> applicable as WSDL interface, as describing a single HTTP resource is
> less than what WSDL wants to accomplish in one Interface.

Whoa!  I don't understand that.  By that logic, a stock quote retrieval
interface isn't applicable as a WSDL interface, because one can always
develop a stock portfolio management interface which encapsulates it.

You said it yourself; WSDL describes interfaces, and HTTP defines one.
I think the conclusion is pretty clear.  And remember, this is all to
define *extended* functionality for people who want to define RESTful
services.  My proposal respects the common use of WSDL, and for those
that aren't defining RESTful services, it's totally business-as-usual;
they need not ever know that this functionality exists.


Mark Baker.   Ottawa, Ontario, CANADA.        http://www.markbaker.ca
Received on Thursday, 17 July 2003 22:40:38 UTC

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