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RE: RDDL and WSDL

• To: "Simon St.Laurent" <simonstl@s...>,"Xml-Dev@Lists. Xml. Org (E-mail)" <xml-dev@l...>
• Subject: RE: RDDL and WSDL
• From: "Chris Wilper" <cwilper@c...>
• Date: Thu, 30 Jan 2003 12:53:46 -0500
• Thread-index: AcLIgMCAnlXh9J7OT46yGsFYy34pUwABHH4w
• Thread-topic: RDDL and WSDL

Simon St.Laurent said:
> I see that no one's replied to this question yet again.  I'm still not
> entirely sure why I'd want to use RDDL to identify WSDL resources, since

The concept is an API.  If it has a URI, great.  If it can be
resolved, excellent.  If I get a choice as to what representation of
the resource I want, even better. 

I'm not sure RDDL is the right thing, as currently scoped
as a "namespace document" -- but the idea of a resolved URI 
providing an index of descriptive representations of
a concept/resource ... is appealing.

> it seems to some extent that WSDL performs similar tasks (identifiying
> structures and processing) to RDDL.

A wsdl document, while technically readable by people
and machines, isn't always going to be the most
appropriate representation of a "web service" api.

I'd rather read http://www.fedora.info/definitions/1/0/api/
than http://www.fedora.info/definitions/1/0/api/Fedora-API-M.wsdl 
The vision as I see it is, starting with a single URI, a 
person/machine should be able to make the decision on which 
representation is most appropriate.

- Chris

-----Original Message-----
From: Simon St.Laurent [mailto:simonstl@s...]
Sent: Thursday, January 30, 2003 11:58 AM
To: Xml-Dev@Lists. Xml. Org (E-mail)
Subject: Re:  RDDL and WSDL


Doug.Ransom@p... (Doug Ransom) writes:
>Is anyone using RDDL to identify WSDL resources?
>
>I can see the nature being the namespace for wsdl 
>http://schemas.xmlsoap.org/wsdl/, but what would the purpose be, 
>especially if I describe the service two different ways (i.e. different 
>schema languages) and letting the caller pick which one they want to 
>use?
>
>This came up a couple years ago on the list: 
>http://lists.xml.org/archives/xml-dev/200103/msg00171.html but Mr. 
>Fell's query went unanswered.

I see that no one's replied to this question yet again.  I'm still not
entirely sure why I'd want to use RDDL to identify WSDL resources, since
it seems to some extent that WSDL performs similar tasks (identifiying
structures and processing) to RDDL.

Could you explain this one a bit more?
-- 
Simon St.Laurent
Ring around the content, a pocket full of brackets
Errors, errors, all fall down!
http://simonstl.com -- http://monasticxml.org

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