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Re: [fwd] Draft charters for work on Semantics for WS

From: David Martin <martin@AI.SRI.COM>
Date: Wed, 16 Nov 2005 09:41:32 -0800
Message-ID: <437B6F4C.1050604@ai.sri.com>
To: "Battle, Steven Andrew" <steve.battle@hp.com>
CC: "Shi, Xuan" <xshi@geo.wvu.edu>, public-sws-ig@w3.org

Hi Xuan -

I agree with Steve's comments and I would like to reiterate three points.

First, as background, an OWL-S service specification must have some kind of 
grounding to be usable.  An OWL-S profile and process model provide a semantic 
model, but they are considered to be "abstract" in precisely the sense that they 
don't provide communication details.  A grounding is intended to provide those details.

Second, we (the OWL-S folks) have said all along that the WSDL grounding is just one 
of many possibilities for grounding an OWL-S service.  (Actually, at least one other 
grounding approach has been developed.)

Third, it's my understanding that WSDL allows for specification of other protocols 
besides SOAP.  At least that was true in WSDL 1.1.  I haven't looked closely at WSDL 
2 in this regard, but I sure hope it is still the case.

Regards,
David

Battle, Steven Andrew wrote:

> The aim of this charter is specifically about semantic annotations for
> WSDL, so its about seeing where the existing W3C WS stack hooks into the
> SWS work. It doesn't mean that work on semantic modelling in general
> ends here, or that people can't continue to explore other groundings for
> OWL-S or WSMO. 
> 
> On the other hand, take a look at:
> http://www.pacificspirit.com/blog/2005/03/02/yahoo_search_web_service_in
> _wsdl_20
> Which demonstrates that you can model RESTful service in WSDL 2.0 (once
> you've got your head round it).
> Steve.
> 
> 
>>-----Original Message-----
>>From: Shi, Xuan [mailto:xshi@GEO.WVU.edu] 
>>Sent: 16 November 2005 13:47
>>To: Battle, Steven Andrew
>>Cc: 'public-sws-ig@w3.org'
>>Subject: RE: [fwd] Draft charters for work on Semantics for WS
>>Importance: High
>>
>>Grounding to WSDL limits the power of OWL-S for SWS deployment.
>>
>>As a service provider, you described your service in OWL-S. 
>>Then as a service requester, if I send a request exactly 
>>based on your service description, you should understand how 
>>to process my request.
>>
>>Since this request, an XML document, can be sent to you 
>>either via WSDL/SOAP or via HTTP/POST or another Internet 
>>protocol, thus your choice of grounding to WSDL limits OWL-S' 
>>deployment in more broadly applications. 
>>
>>-----Original Message-----
>>From: Battle, Steven Andrew
>>To: public-sws-ig@w3.org
>>Sent: 11/16/05 5:28 AM
>>Subject: RE: [fwd] Draft charters for work on Semantics for WS
>>
>>
>>The WSDL-S team openly acknowledge the strong relationship 
>>between WSDL-S and OWL-S, so this should be clarified in the 
>>SAW working group charter, which currently recognises only 
>>once source of input. One can see the core elements of WSDL-S 
>>in the OWL-S submission. This identifies OWL-S extensions for 
>>WSDL message (owl-s-parameter), binding and operation 
>>(owl-s-process) definitions.
>>
>>The relevant sections of the OWL-S submission can be found in section
>>6.2
>>http://www.w3.org/Submission/2004/SUBM-OWL-S-20041122#SECTION0
>>0062000000
>>000000000
>>
>>This proposal is exactly along the lines of the WSDL working 
>>group charter. I feel strongly that in the interests of 
>>clarity the sentence below in the charter should be revised:
>>
>>"A Member Submission, WSDL-S, related to this work, has been 
>>acknowledged by W3C and should be used as one input to the 
>>Working Group."
>>
>>To something like:
>>
>>"Member Submissions related to this work, WSDL-S and OWL-S 
>>(see 'Grounding OWL-S Services with WSDL and SOAP'), have 
>>been acknowledged by W3C and should be used as input to the 
>>Working Group."
>>
>>Steve Battle (Hewlett-Packard). 
>>
>>
>>>-----Original Message-----
>>>From: public-sws-ig-request@w3.org
>>>[mailto:public-sws-ig-request@w3.org] On Behalf Of Carine Bournez
>>>Sent: 15 November 2005 14:15
>>>To: public-sws-ig@w3.org
>>>Cc: www-ws@w3.org
>>>Subject: [fwd] Draft charters for work on Semantics for WS
>>>
>>>
>>>
>>>
>>>
>>>This is a copy of an announcement sent last week to the W3C 
>>
>>membership 
>>
>>>(on the member-ws@w3.org mailing list).
>>>All comments welcome! (for non members, on the public-sws-ig@w3.org 
>>>mailing list). Thank you.
>>>
>>>
>>>
>>>>Following the announcement in [1], two charters have been 
>>
>>drafted, 
>>
>>>>corresponding to the two points previously described.
>>>>
>>>>The first one is a Semantics for Web Services
>>>
>>>Characterization Group.
>>>
>>>>	http://www.w3.org/2005/10/sws-charac-charter.html
>>>>
>>>>It specifically includes 4 issues to discuss.
>>>>
>>>>The second one is Semantic Annotations for WSDL Working Group.
>>>>
>>>>	http://www.w3.org/2005/10/sa-ws-charter.html
>>>>
>>>>
>>>>Discussion on both these charters should happen on this
>>>
>>>mailing list
>>>
>>>>(member-ws@w3.org).
>>>>Thank you!
>>>>
>>>>
>>>>[1]
>>>>
>>>
>>http://lists.w3.org/Archives/Member/w3c-ac-members/2005JulSep/0024.htm
>>
>>>>l
>>>>
>>>
>>>----- End forwarded message -----
>>>
>>>--
>>>Carine Bournez -+- W3C Sophia-Antipolis
>>>
>>>
>>>
>>
Received on Wednesday, 16 November 2005 17:42:17 GMT

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