Hi Mark,

Thanks very much for the references.  

I am sorry if I wasn't clear in the paragraph you
reference.  I was trying to draw a distinction between
the definition of an architectural style (such as SOA)
and a concrete protocol specification (such as HTTP). 
An architectural style is not a technology - meaning
that the definition of the style is distinct from its
implementation in any particular technology.

I believe for example REST is not the same as HTTP,
the former being the architectural style and the
latter being the technology which most closely
implements the style.  Sometimes it seems like
confusion still exists between the two, and sometimes
it seems like confusion still exists between an SOA
and the technology that can be used to implement one. 

Eric


--- Mark Baker <[EMAIL PROTECTED]> wrote:

> On 1/16/06, Eric Newcomer <[EMAIL PROTECTED]>
> wrote:
> > One point that will always give us trouble
> compared to
> > the specs for HTTP, SOAP etc. is that SOA is not a
> > technology like those but a style of design, or
> > approach to IT that is technology independent.  So
> you
> > can't nail it down the way you can nail down
> something
> > like J2EE using a set of API and protocol specs.
> 
> Eric, I'm disappointed to here you say that.  We've
> had a pretty
> decent framework for rigorously (not "formally")
> defining
> architectural styles for many years now, since at
> least Perry and
> Wolff's "Foundations" paper and its predecessors,
> i.e.;
> 
>
http://www.ece.utexas.edu/~perry/work/papers/swa89.pdf
> 
> FWIW, I took a stab at this a few years ago;
> 
>
http://lists.w3.org/Archives/Public/www-ws-arch/2002Sep/0083.html
> 
> But that was rejected.  A few months later, Dave
> Orchard made his own attempt;
> 
>
http://lists.w3.org/Archives/Public/www-ws-arch/2003Feb/0055.html
> 
> Which was also rejected. 8-(
> 
> Mark.
> --
> Mark Baker.  Ottawa, Ontario, CANADA.      
> http://www.markbaker.ca
> Coactus; Web-inspired integration strategies 
> http://www.coactus.com
> 
> 
> 


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