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RE: Rethinking namespaces, attribute remapping (was Re:[xml-de

• To: "'Jeff Greif'" <jgreif@a...>, "'Rich Salz'" <rsalz@d...>, "'xml-dev@l...'" <xml-dev@l...>
• Subject: RE: Rethinking namespaces, attribute remapping (was Re: TAG on HLink)
• From: "Klotz, Leigh" <Leigh.Klotz@p...>
• Date: Fri, 27 Sep 2002 17:41:00 -0700

>From: "Rich Salz" <rsalz@d...>
>Subject: Re:  Rethinking namespaces, attribute remapping (was
Re: TAG on HLink)
>
>> On Fri, 27 Sep 2002, Jeff Greif wrote:
>>
>> > You can imagine a single
>> > piece of code acting as the guts of a client that can access any web
>service
>> > described by WSDL.
>>
>> Without any knowledge of the operation's semantics?  Such a thing will
>> only be useful as a debugging tool.
>>

Actually, we're doing something similar, using XForms on top of WSDL with a
Schema, which all three together provide a chain of knowledge from the web
service to the user and back.

On demand, a web service can provide a template for a unit of work, which a
user agent can transform into something presentable to the user, and then
back into something presentable to the web service for invocation later.

The template is a simple container document which lists the WSDL and Schema,
a prototype instance, and an XForms model and abstract UI controls bound to
changeable nodes in the instance.  The WSDL provides the operation
semantics, the XML Schema provides the datatypes, and the XForms provides
the human-readable explanation of the semantics (and some additional
client-side validation).  

I hope to write this up as a paper for WWW2003, whose deadline is fast
approaching.

Leigh.

-----Original Message-----
From: Jeff Greif [mailto:jgreif@a...] 
Sent: Friday, September 27, 2002 4:54 PM
To: Rich Salz; xml-dev@l...
Subject: Re:  Rethinking namespaces, attribute remapping (was
Re: TAG on HLink)


The user says which ones to invoke, in what order, what values to pass in,
and what to do with what comes back.  The plumbing works with any of them.
It's not magic.

Jeff

----- Original Message -----
From: "Rich Salz" <rsalz@d...>
To: "Jeff Greif" <jgreif@a...>
Cc: <xml-dev@l...>
Sent: Friday, September 27, 2002 4:48 PM
Subject: Re:  Rethinking namespaces, attribute remapping (was
Re: TAG on HLink)


> On Fri, 27 Sep 2002, Jeff Greif wrote:
>
> > You can imagine a single
> > piece of code acting as the guts of a client that can access any web
service
> > described by WSDL.
>
> Without any knowledge of the operation's semantics?  Such a thing will
> only be useful as a debugging tool.
>
> (The BBN Cronus distributed system, a research project, had this in 1988;
> Corba had it's DII (dynamic invocation interface) in the early 90's.  The
> fun thing about this WS stuff is that it's not all that new... :)
> /r$
>
>
>
>


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