--- Gregg Wonderly <[EMAIL PROTECTED]> wrote:
> Jerry Zhu wrote:
> >
> > --- Gregg Wonderly <[EMAIL PROTECTED]> wrote:
> >
> > > That's an interesting conclusion to draw Jerry.
> I
> > > don't understand where the
> > > logic is in suggesting that any software
> deployed
> > > before there was something
> > > called "web services" was not an SOA.
> >
> > Software deployed before are objects or
> components. I
> > see many in this list do not differentiate
> Component
> > from Service.
>
> Humm, so you think that the software deployed
> "before" stopped at the objects or
> components and that they didn't have any
> interactions with clients as services?
It depends what do you mean when you talk about
service. Interact through interface as contract in the
network is something DCOM can offer. If we replace
service with COM in the interpretation of service, we
see good interpretation of COM. Based on that I
conclude we were talking about component.
> > > suggest that "SOA" is
> > > somehow aligned as a "SW architecture". That
> seems
> > to contradict the basic
> > > notion that services go beyond the software
> level.
> >
> > Business service should be differentiated from
> systems
> > service. the former is in business terms and the
> > latter is in technology terms. The two are
> > interdependent and two perspective views.
>
> An SOA must embody the basics of "the business"
> services or it probably won't be
> very valuable to implement and use. Thus the SOA is
> aligned on the business
> needs and the software is a manifestation of the
> services needed.
I didn't see anything in disagreement here. SOA as an
architecture is closer to the world of business
requirements that is the ability to recompose. Object
orientation describes the world as it is. Service
orientation describe the world as it is to be.
Functional orientation describes the world as
mathematics. Assembly language is machine orientation
and describes the world as it is computers. So SOA is
software architecture in the same sense as any
architecture of preceding technologies.
Jerry
> Gregg Wonderly
>
>
>
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