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Subject: RE: [soa-rm] When Is An SOA Really An SOA?
Joseph:
This is a key aspect of why we are doing this
exercise. We have a
section (placeholder) called conformance but at
this point it is not
clear if we could (or should) make a blanket
statement. At the face to
face, the thinking was more in tune with what
it would mean if someone
stated their SOA was conformant with the SOA
RM.
Duane
Chiusano Joseph wrote:
> This question has
been on my mind for quite some time, and I would
> like now to put it in
the context of our in-process RM.
>
> In the past, I have
pondered the following more specific question
> (please note that this is
all scoped to Web Services-based SOA for
> ease of
explanation):
>
> If I have 2 Web Services that communicate,
do I have an SOA?
>
> We can say "certainly not!". One can do
point-to-point integration
> with Web Services just as easily (to a
certain degree) as without,
> with redundant Web Services rather than
shared Web Services (a
> violation of one of the foundational tenets of
SOA, which is shared
> services).
>
> Now let's say that
we have 2 Web Services that each conform to the SOA
> Architectural Model
in Figure 1 of our most recent draft. There is a
> data model, a policy, a
contract, etc.
>
> Add to that our definition of SOA on line
470, in which we (correctly)
> state that SOA is a form of Enterprise
Architecture, which (at least
> in my mind) implies enterprise-level
benefits.
>
> Q: Given the last scenario above (2 Web Services
that each conform to
> the SOA Architectural Model ) and our definition of
SOA: Is this
> scenario large-scale enough that it *really* meets our
definition?
> IOW, how large-scale does an "instance" that conforms to our
RM have
> to be to yield benefits on an enterprise scale? Do we need
to
> stipulate something regarding this for our RM?
>
>
Joe
>
>
> Joseph Chiusano
>
> Booz Allen
Hamilton
>
> Visit us online@ http://www.boozallen.com <http://www.boozallen.com/>
>
>
>
--
***********
Senior
Standards Strategist - Adobe Systems, Inc. - http://www.adobe.com
Chair - OASIS Service
Oriented Architecture Reference Model Technical Committee -
http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=soa-rm
Vice
Chair - UN/CEFACT Bureau Plenary - http://www.unece.org/cefact/
Adobe
Enterprise Developer Resources - http://www.adobe.com/enterprise/developer/main.html
***********
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