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RE: Abstract Bindable Choreography

From: Ahmed, Zahid <zahmed@ebay.com>
Date: Fri, 4 Apr 2003 14:09:36 -0800
Message-ID: <9CEDD4668EA651449918CA4C15A13B12A4B2F6@sjc-exm-25.corp.ebay.com>
To: "WS Choreography (E-mail)" <public-ws-chor@w3.org>

I agree using a XML representation of the choreography 
in a declarative style makes sense.

I don't see how XMI is related to web services choreography. 
XMI was developed for XML interchanges between tools and 
applications. It's basically a XML serialization format 
for CORBA/UML tools, right? 

We should focus on describing the structural and processing 
semantics of message exchange choreographies supported by a 
web service, perhaps around WSDL extensions and SOAP 
extensions. WSDL/SOAP extensions are expressible in 
XML Schema and that should be the language to describe 
choreographies as well.

Zahid Ahmed
Web Services Architect
Ebay, Inc.

-----Original Message-----
From: Ricky Ho [mailto:riho@cisco.com]
Sent: Friday, April 04, 2003 12:52 PM
To: Martin Chapman; 'Burdett, David'; 'WS Choreography (E-mail)'
Subject: RE: Abstract Bindable Choreography



I think David's XML model serve the purpose of the choreography definition 
and I don't see why it can't be a potential candidate for our choice.  I 
don't think David is proposing a diagram notation, it is just for helping 
to understand his example.

Rgds, Ricky

At 10:11 AM 4/4/2003 -0800, Martin Chapman wrote:

>David,
>
>I have a strong feeling that you can get what you want by exstiing
>technologies such as UML. In the past I have used use cases and activity
>diagrams to express reusable interactions between parties. Diagramtic
>notations are explicitly out of scope of our charter, and I'm not sure
>if there is any benefit in a specific xml language  to express the same
>thing.
>
>Martin.
>
> > -----Original Message-----
> > From: public-ws-chor-request@w3.org
> > [mailto:public-ws-chor-request@w3.org] On Behalf Of Burdett, David
> > Sent: Thursday, April 03, 2003 11:09 AM
> > To: WS Choreography (E-mail)
> > Subject: Abstract Bindable Choreography
> >
> >
> > There has been some discussion around the idea of an abstract
> > bindable choreography so I thought I would provide an example
> > in the form of a diagram (PDF) which shows the flow
> > associated with the placement of an order and an XML
> > representation of the same in a declarative style. I strongly
> > suggest you look at the diagram first.
> >
> > Comments welcome ;-)
> >
> > David
> >  <<PlaceOrderChoreography.pdf>>
> >  <<PlaceOrderChoreography.xml>>
> >
> > Director, Product Management, Web Services
> > Commerce One
> > 4440 Rosewood Drive, Pleasanton, CA 94588, USA
> > Tel/VMail: +1 (925) 520 4422; Cell: +1 (925) 216 7704
>mailto:david.burdett@commerceone.com; Web: http://www.commerceone.com
Received on Friday, 4 April 2003 17:10:26 UTC

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