--- In [email protected], Michael 
Poulin <[EMAIL PROTECTED]> wrote:
>
 
> Now, if ESB acts as a service of its own, the consumer has to 
contract with ESB. It would be no problem here unless ESB magically 
represents service's functionality and RWE, and does it for every 
service version. Have you heard about such ESBs? Is it realistic to 
assume such creature at all? (For every service...?)
> 
That would be true if we assume that all SOA functionalities are to 
be placed in a ESB. Unfortunately, that's unrealistic. ESB are used 
with other software to provide a solution.

> BTW, an intermediary can transform message in any way it wants w/o 
sender and receiver knowing about it - full decoupling. 
> 
Yes, with the limitation that it has to fulfill the each contract 
with each provider and consumer.

H.Ozawa

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