Please re-read Sect 4.3.4 of soa-ra-cd-02

RAF Colleagues,

 

A very interesting discussion ensured today on the topic of
atomic vs composite services.  I’d like to encourage everybody who
participated in the discussion to re-read Sect 4.3.4 in its entirety prior to
next week’s meeting and proposed (via e-mail in the interim if you like)
some wording changes to the formal definitions captured in this section. 
The reference document is soa-ra-cd-02 lines 2311 to 2350.

 

Remember that the original issue resolved around
multiplicity of interfaces and descriptions and we did not even discuss that
point today and for the atomic service case, the issue around the language of
interacting with other services (which is accepted to change to use or rely on
other services).

 

Indeed the importance of this distinction depends on one’s
perspective but I ask that you imagine the challenges from a management point
of view for a highly composed service in terms of management of policies and
contracts of each of the services that make up the composite service.  I
think this has some real practical implications and they are not trivial.

 

Thanks!

 

 - Jeff