Goals for asych messaging / orchestration ? (was RE: Thinking abo ut Web Services Architecture)

> -----Original Message-----
> From: David Orchard [mailto:david.orchard@bea.com]
> Sent: Thursday, February 14, 2002 1:41 PM
> To: www-ws-arch@w3.org
> Subject: RE: Thinking about Web Services Architecture
>  ... our rough priorities are:
> 
> 1. Asynchronous, Conversational, Reliable messaging
> 2. Secure messaging (Given that XMLE as a presumably pre-requesite
> technology is not yet at CR)
> 3. Simple discovery
> 4. Orchestration

Those are important priorities for us too, but I only see secure messaging
on the strawman goals list.  What about asynch and orchestration?  Are these
not required features of the Web Services Architecture, or are the "goals"
at a higher level of abstraction and we're not talking about "requirements"
yet?