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RE: Web Service Definition [Was "Some Thoughts ..."]

From: <michael.mahan@nokia.com>
Date: Fri, 1 Mar 2002 11:26:25 -0500
Message-ID: <5C76D29CD0FA3143896D08BB1743296A072C0E@bsebe001.NOE.Nokia.com>
To: <www-ws-arch@w3.org>
Mark,

I respectfully disagree that discovery is accounted for by defining that a Web service is uri identifiable. Uri identifiable enables accessibility, but is not sufficient to enable discovery. Discovery means "to make known or visible"[1] and hence is the process of acquiring the resource identifier and optionally, deciding whether it is a resource worth binding. 

According to the WS documents I have read, Discovery means that a client can, during runtime, in non apriori fashion, acquire identifiers to resources, analyze them to meet sought criteria, and then invoke them. I think Steve's earlier examples are clearly outside this desciption. Hence I still believe that discovery should be thought of as an extension to rather than a basic or core web service description.


[1] http://www.m-w.com/cgi-bin/dictionary?book=Dictionary&va=discovering


Mike Mahan, Nokia


-----Original Message-----
From: ext Mark Baker [mailto:distobj@acm.org]
Sent: March 01, 2002 09:53 AM
To: Sandeep Kumar
Cc: Vinoski Stephen; Joseph Hui; www-ws-arch@w3.org
Subject: Re: Web Service Definition [Was "Some Thoughts ..."]


Sandeep,

> If D&D are not an integral part of a Web Service defintion,

I was claiming that discoverability *is* an integral part of the
definition.  It's just already accounted for by defining that a Web
service be URI identifiable.

I know this is a bit different than some Web service work people have
already done, but this is (IMO) one of those times where our mandate to
be integrated with Web architecture effects our work.

> pl help me define
> how would you define a Web (or a Network) of Web Services, the participants.
>
> At a high-level, they must at least have the same characteristics. If not,
> it would be much harder to reason about them semantically, deal with
> managing & monitoring them.

Sorry, I'm unclear what you're asking.

MB
-- 
Mark Baker, Chief Science Officer, Planetfred, Inc.
Ottawa, Ontario, CANADA.      mbaker@planetfred.com
http://www.markbaker.ca   http://www.planetfred.com
Received on Friday, 1 March 2002 11:26:55 GMT

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