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Re: definition of web services in "web services architecture"

From: Hugo Haas <hugo@w3.org>
Date: Wed, 4 Dec 2002 16:13:41 +0100
To: Joao Paulo Andrade Almeida <almeida@cs.utwente.nl>, www-ws-arch@w3.org
Message-ID: <20021204151341.GB18666@w3.org>

* Champion, Mike <Mike.Champion@SoftwareAG-USA.com> [2002-11-29 10:29-0500]
> > Services described in WSDL 1.1 are not identified by a URI.
> > Instead, each port of a service is identified by a URI.
> > 
> > Is this intentional? Have I interpreted the definition
> > correctly?
> 
> I can't speak for the working group's intention vis a vis WSDL 1.1.
> Nevertheless, the general purpose of the definition is to look forward to a
> "reference architecture" incorporating WSDL 1.2 than to be backward
> compatible with everything we now think of as a "web service".  This does
> not mean that WSDL 1.1 can't be used to describe "web services", just that
> it is best practice to use URIs whenever feasible to identify web service
> components so as to maximize compatibility and interoperability with the
> rest of the Web.  WSDL 1.2 adopts this perspective.

I would add that I don't think that WSDL 1.1 prevents the
identification of a service with a URI. It says[1] that a service is
"[a collection] of network endpoints, or ports", which are each
identified by a URI.

It just is silent about whether a service would be identified by a URI
or not, and therefore does expose one.

Regards,

Hugo

  1. http://www.w3.org/TR/2001/NOTE-wsdl-20010315#_introduction
-- 
Hugo Haas - W3C
mailto:hugo@w3.org - http://www.w3.org/People/Hugo/
Received on Wednesday, 4 December 2002 10:13:44 GMT

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