Frank,
I’d like a brief moment on this morning’s agenda to discuss the
SOA Harmonization document a bit and get people thinking about what is imminently
going to be a knock down drag out debate. I’ll enlighten folks more on the
call but just want to prime the pump and we can take the discussion offline. I
need some ammunition going into Friday’s telecon.
Cheers…
- Jeff
From: Dabbaghchi, Eric
[mailto:iraj@mitre.org]
Sent: Monday, April 20, 2009 7:06 PM
To: Heather Kreger
Cc: Ali Arsanjani; soa-harmony@opengroup.org
Subject: RE: Updated SOA Harmonization draft from 4/17 call
There you go Heather.
The paragraph on definitions is already in the .ppt slide. The
example of IBM ESB is just for the illustration of the process. So the
reader can follow the definitions, the diagram, and the use case.
Regards,
Eric
From: Heather Kreger [mailto:kreger@us.ibm.com]
Sent: Monday, April 20, 2009 3:47 PM
To: Dabbaghchi, Eric
Cc: Ali Arsanjani; soa-harmony@opengroup.org
Subject: RE: Updated SOA Harmonization draft from 4/17 call
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Warning: Your file, New Figure 2.pptx, contains more than 32 files after decompression
and cannot be scanned.
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Eric,
can you send this diagram in .ppt? I can't open .pptx
Are you
proposing the text after the Fig as part of your proposed wording?
Sincerely,
Heather Kreger
STSM, SOA Standards, Standards, SWG, IBM
Member of IBM Academy of Technology
Author of "Java and JMX: Building Manageable Systems"
kreger@us.ibm.com
919-543-3211 (t/l 441) cell:919-496-9572 home office: 919-853-3772
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"Dabbaghchi,
Eric" <iraj@mitre.org>
04/19/2009
01:43 PM
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To
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Heather
Kreger/Raleigh/IBM@IBMUS, "soa-harmony@opengroup.org"
<soa-harmony@opengroup.org>
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cc
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Ali
Arsanjani/Cedar Rapids/IBM@IBMUS
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Subject
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RE:
Updated SOA Harmonization draft from 4/17 call
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|
***********************
Warning: Your file, New Figure 2.pptx, contains more than 32 files after
decompression and cannot be scanned.
***********************
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Ali and the Team,
Here’s some points that I raised in last Friday’s
Harmonization call. It seems to me, we are having trouble defining concisely
what an SOA Reference Architecture is and how it interplays with other objects
in the space. I suggest that the attached slide or a variation thereof
should replace Fig. 2 of the document. In a nutshell:
A Reference Architecture (RA) is an
instantiation of a grouping of one or more generic Architecture Patterns for
a given domain, such as SOA. Applying a project-specific set of SOA
requirements to the RA will generate a Solution Architecture for
those requirements, resulting in an SOA Logical
Architecture and an SOA Physical Architecture,
respectively. The latter would serve as the basis for the SOA
implementation.
An Example: IBM chose the ESB architecture pattern
(a generic pattern known for about two decades even before the term SOA had
been coined) as the basis for its SOA Foundation Reference
Architecture. Then from that point on, any new SOA project will be
an instantiation/customization of the SOA Reference Architecture. For example,
a specific project may not have any requirements for Information as a service
or interaction with corporate partners, in which case those components of
the SOA RA will be dropped, and so on.
Incidentally, I have applied this framework to some
of the largest SOA implementations in the world at the United States Air Force
and it works J
I hope this helps.
Regards,
Eric Dabbaghchi
MITRE Corp.
From: Heather Kreger
[mailto:kreger@us.ibm.com]
Sent: Friday, April 17, 2009 5:34 PM
To: soa-harmony@opengroup.org
Subject: Updated SOA Harmonization draft from 4/17 call
Hi folks,
Here's an update of the SOA Harmonization document draft based on todays
discussion.
I accepted the edits in the sections we reviewed, updated the continuum picture
to include foundation SOA RAs .. and positioned the RA's we are working with.
I also dropped in the contents of the SOA Concepts note .. I thought it would
be easier to collaborate and comment/edit here.
I have not tackled the guidance section yet.
Sincerely,
Heather Kreger
STSM, SOA Standards, Standards, SWG, IBM
Member of IBM Academy of Technology
Author of "Java and JMX: Building Manageable Systems"
kreger@us.ibm.com
919-543-3211 (t/l 441) cell:919-496-9572 home office: 919-853-3772