2008/9/29 Kirstan Vandersluis <[EMAIL PROTECTED]>: > --- In [email protected], Michael Poulin > <[EMAIL PROTECTED]> wrote: >> >> I agree with Rob and Steve on "data-first" topic, it is DO. > > I would say we're talking about data-oriented services. Regardless of > what we call them, the real question is, do entity services (and more > broadly, data services) play a legitimate role in an SOA? My opinion > is an emphatic "yes".
As support services for post-transactional information... yes. As the basis for the architectural structure... no. > >> >> I disagree on presentation layer is not a part of SOA. What any User > Journey is if not an implementation of a business process or an > aggregation of business services/functions/features? Well, I posted my > comments on this already. > > I think you have to draw boundaries somewhere. Any IT component is > providing some service, at least in the mind of its creator. I think > a UI can be developed using service orientation (UI events trigging > service calls, for example), but I would not call the UI itself a > service. I would, but then I wouldn't limit the service to the IT bit. Steve > > -Kirstan > >
