> As various members of this Group have pointed out
> many times, SOA does not necessarily have to be
done using WS.
Right, SOA is SW architecture and WS is a platform
that embodies Service technology. Of course we can
use other platform other than WS. As we mentioned
before, architecture is platform independent.
> Likewise just because someone implements a WS-based
system does not automatically qualify
> it as a SOA structure.
Yes, one can write a C program using C++ not in terms
of Object technology.
> SOA and its principles
> precede WS by many years. What WS has done for SOA
is to:
>
> (a) Raise its profile as a strategic architecture to
> a high level of recognition
>
> (b) Provide a means, even if only partial, of
> implementing it which
> is ostensibly supported by all the significant
> vendors
>
> In turn I think SOA has given WS a serious raison
> d'être at the
> strategic architectural level. If you doubt this,
> in the early days
> of WS, when people questioned its purpose or role,
> this invited such
> responses as "it is Microsoft's attempt to take over
> the middleware
> market by redefining it" or "it helps to sell J2EE
> and EJB/.NET".
I think we need to go back what are the elements in
SOA to be classified as SOA and that of WS in what
time lines to have a base of what to talk about.
Jerry
> Gervas
>
> --- In
> [email protected],
> Jerry Zhu <
> [EMAIL PROTECTED]> wrote:
> >
> > Gervas,
> >
> > Yes, we can use standards and technologies other
> than
> > Web services standards for specific needs. Such
> as
> > Extensible Business Reporting Language for filing
> > reports with the SEC; Financial Information
> eXchange
> > Markup Language for exchanging trading
> instructions
> > among financial services organization; Lightweight
> > Directory Access Protocal for registering and
> finding
> > resources etc, etc..
> >
> > You are absolutely right, the key element SOA has
> and
> > the preceding SW architectures do not have is the
> Web
> > Services. Key elements of Web Services standards
> > include: XML/XML Schema, SOAP/HTTP, WSDL, UDDI
> etc.
> > Of cause, we can use other standards and
> technologies
> > to define Web Services Platforms.
> >
> > Jerry
> >
> > --- Gervas Douglas <[EMAIL PROTECTED]> wrote:
> >
> > > Jerry,
> > >
> > > Just because the choices (SGML or HTML if not
> XML)
> > > you have mentioned
> > > might be useful choices does not logically
> exclude
> > > all other
> > > alternatives any more than the assumption that
> SOA
> > > has to be based on Web Services.
> > >
> > > Gervas
> > >
> > > --- In
> > > [email protected],
> > > Jerry Zhu <
> > > jerryyz@> wrote:
> > > >
> > > >
> > > >
> > > > --- Gregg Wonderly <gergg@> wrote:
> > > >
> > > > > I don't believe there is anything in the
> term
> > > > > "Enterprise Service Bus" that says
> > > > > XML. Maybe some people want to use it that
> way,
> > > but
> > > > > I think that's a short sited view.
> > > > >
> > > > > Anything that your SOA uses for transfering
> data
> > > > > between services and clients is part of your
> > > ESB.
> > > >
> > > > Maybe SGML or HTML if not XML. I don't think
> it
> > > can
> > > > be binary data to achieve service description
> and
> > > > service choregraphy. If one says that it is
> > > possible
> > > > to implement polymorphism using assembly
> language,
> > > I
> > > > won't argue.
> > > >
> > > > Jerry
> > > >
> > > >
> __________________________________________________
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> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> > __________________________________________________
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> >
>
>
>
>
>
>
>
>
>
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