Hi Michael,

Back from another assignment. :-)

--- In [email protected], Michael Poulin 
<m3pou...@...> wrote:
> 
> However, I have some problems with proposed SOA definition, in particular 
> with "focuses on design of systems from the perspective of providers and 
> consumers as defined by a contract. SOA-based designs introduce agility by 
> enabling interchangeability of service providers without requiring process 
> changes in the consumers." As we know, when we design SO architecture, we do 
> not (cannot) anticipate the service consumers and scenarios where the 
> services will be used. This means, we cannot talk about 'contracts' because 
> the sense of this word assumes an agreements between parties; if one party is 
> unknown, what the agreement may be?
> 
True if we are talking about providing services for general audiences, but in 
most cases users want to limit who can use their services and only a few 
limited services are offered to general audiences.

H.Ozawa

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