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Re: Service Discovery

From: Jyotishman Pathak <jyotishman@gmail.com>
Date: Fri, 28 Jan 2005 14:19:07 -0600
Message-ID: <b6d82a81050128121933cddaf4@mail.gmail.com>
To: Adrian Walker <adrianw@snet.net>
Cc: public-sws-ig@w3.org, jyotishman@gmail.com

Hi Adrian,

Thanks for your reply. But, I am still confused about how to discover
a service based on IOPE's.

For example, assume that the following are the inputs for the Congo
service (in its profile) as part of an advertisement :-

<profile:hasInput rdf:resource="&congProcess;#ExpressCongoBuyBookISBN"/>
<profile:hasInput rdf:resource="&congoProcess;#ExpressCongoBuySignInInfo"/>

Here, "&congProcess;#" refers to the name space of the "Process" of
Congo service.

Having this, can you please give me an example of a service requesting
query (based on the inputs) ?

In other words, if I were to specify a request query to discover the
Congo service, how would it look like ?

Please feel free to correct me if my question itself is wrong. I will
also appreciate inputs from others in the mailing list.

Regards,
Jyoti.




On Fri, 28 Jan 2005 13:16:39 -0500, Adrian Walker <adrianw@snet.net> wrote:
> 
> Jyoti --
> 
> You wrote...
> 
> >can you give me an example of a service request &
> >advertisement which uses different ontologies ?
> 
> Cross-ontology reasoning is complex.  There's an approach to this in the
> retailer-to-manufacturer example in [1].  The examples [2,3,4,5] may also
> provide food for thought.
> 
> They can be run in an online system at the same URL.
> 
> HTH,  - Adrian
> 
>   [1]
> http://www.reengineeringllc.com/Internet_Business_Logic_and_Semantic_Web_Presentation.pdf
> 
> [2]  http://www.reengineeringllc.com/demo_agents/DataModelling1.agent
> 
> [3]  http://www.reengineeringllc.com/demo_agents/MergeOntologies1.agent
> 
> [4]  http://www.reengineeringllc.com/demo_agents/OntologyInterop2.agent
> 
> [5]  http://www.reengineeringllc.com/demo_agents/RDFQueryLangComparison1.agent
> 
> Adrian Walker
> Reengineering LLC
> PO Box 1412
> Bristol
> CT 06011-1412 USA
> 
> Phone: USA 860 583 9677
> Cell:    USA  860 830 2085
> Fax:    USA  860 314 1029
> 
> 
> At 09:58 AM 1/28/2005 -0600, you wrote:
> 
> >Hi,
> >
> >I am a beginner with the SWS technologies and have been doing some
> >reading about the service discovery mechanims, mostly focussing on the
> >OWL-s approach.
> >
> >What I can decipher is that, the "profile" (which is used by the
> >service provider to describe the capabilities & service requestor to
> >specify the request) forms an important part for the service discovery
> >mechanism. Based on this, I have a couple of questions: --
> >
> >1.) Do we assume that the service requestor and the provider use the
> >same ontology to describe the IOPE's ?
> >
> >2.) If yes, then do we achieve "real" interoperability ? I think we
> >are constraining ourselves as it is unrealistic for requestors &
> >providers to have the same/shared ontologies.
> >
> >3.) If no, can you give me an example of a service request &
> >advertisement which uses different ontologies ?
> >
> >4.) I believe the WSMO approach tries to address few things about
> >mediation between ontologies. Should we do something like this for
> >OWL-s too ?
> >
> >It might be possible that my questions are naive and infact may be
> >wrong too. But, I will really appreciate some feedback on these
> >issues.
> >
> >Regards,
> >Jyoti.
> 
>
Received on Friday, 28 January 2005 20:19:39 GMT

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