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RE: Separate concepts for "service" and "targetResource?" (was RE : /service/@targetResource ?)

From: David Orchard <dorchard@bea.com>
Date: Thu, 22 May 2003 08:48:13 -0400
To: "'Walden Mathews'" <waldenm@optonline.net>, "'Champion, Mike'" <Mike.Champion@SoftwareAG-USA.com>, <www-ws-arch@w3.org>
Message-ID: <003601c32060$68c3fd90$140ba8c0@beasys.com>

> -----Original Message-----
> From: www-ws-arch-request@w3.org [mailto:www-ws-arch-request@w3.org]On
> Behalf Of Walden Mathews
> Sent: Thursday, May 22, 2003 1:42 AM
> To: Champion, Mike; www-ws-arch@w3.org
> Subject: Re: Separate concepts for "service" and
> "targetResource?" (was
> RE : /service/@targetResource ?)
> > As far as I know, a "resource" is anything with identity that can
> > meaningfully be accessed via the Web.  What the WSDL people call a
> > targetResource has identity (it's a specific piece of code
> that performs a
> > well-defined operation) and it is accessed via the Web (or
> at least by Web
> > gateways).  For example, a specific printer attached to a
> mainframe that
> can
> > be accessed by a HTTP/SOAP gateway is a "resource" with
> identity, or at
> > least the specific software agent that "drives" the printer
> from the Web
> > service point of view is a Web resource.
> It seems like "the printer", conceptually, is the resource, while
> the driver software and even the hardware are kind of ephemeral.
> The "software agent" view of that strikes me as a sort of 'techie'
> way of trying to be conceptual, and not quite making it.  What if
> there wasn't any software?

That's why there are 2 URIs.  One for the "target", and one for the
"service".  A printer is a different concept than a printer service.  I
don't know why this is so hard for people to understand.  There may be many
services associated with a printer.  Hence there may be many different
service URIs, yet only one target URI.  And these services could be in many
different wsdl definitions.

Received on Thursday, 22 May 2003 08:47:31 UTC

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