Team,
(01)
I offer this additional chart which depicts the outcome of our discussion
last week. I am still working the chart but it's a decent start. We agreed
that SOA is actually only one aspect of this very interesting industry
initiative that needs our focus.
(02)
I think we need to focus on service orientation as a superset of the SOA
discussion. In fact one could argue that service orientation may be
implemented by a combination of architectural styles and not just SOA/web
services.
(03)
(See attached file: Service_Orientation_Def_v1.ppt)
(04)
Regards,
(05)
Andras
(06)
Andras Robert Szakal
Chief Architect IBM Federal Software Group
Distinguished Engineer & Senior Certified IT Architect
Member Open Group Board of Directors
Tie Line: 930-9215
External Line: 202-595-1678
text message: andras1@xxxxxxxxx
email: aszakal@xxxxxxxxxx
(07)
Chris Harding
<c.harding@opengr
oup.org> To
Service-Oriented Architecture CoP
05/05/2006 08:31 <soa-forum@xxxxxxxxxxxxxx>,
AM "'Service-Oriented Architecture
CoP'" <soa-forum@xxxxxxxxxxxxxx>
cc
soa@xxxxxxxxxxxxx
Subject
Definitions of SOA
(08)
Hi -
(09)
As a further update, here is the definition of SOA that was presented at
The Open Group conference last week (and which we have shared with the
OMG).
(010)
SOA is an architectural style that supports service orientation
(011)
•Service orientation
A way of a way of thinking in terms of services and service based
development and the outcomes that services bring
(012)
•Service
A logical representation of a repeatable business activity that has a
specified outcome (e.g., check customer credit; provide weather data,
consolidate drilling reports), is self-contained and maybe composed of
other Services. It is a black box to consumers of the Service
(013)
•Architectural Style
The combination of distinctive features in which Enterprise Architecture is
done, or expressed
(014)
•The SOA Architectural style’s distinctive features:
– Based on the design of the services comprising an enterprise’s
(or inter-enterprise) business processes. Services mirror real-world
business activity
– Service representation utilizes business descriptions. Service
representation requires providing its context (including business
process, goal, rule, policy, service interface and service component)
and service orchestration to implement service
– Has unique requirements on infrastructure. Implementations are
recommended to use open standards, realize interoperability and
location transparency.
– Implementations are environment specific, they are constrained or
enabled by context and must be described within their context.
– Requires strong governance of service representation and implementation
– Requires a “Litmus Test", which determined a “good service”
(015)
At 20:31 04/05/2006, Cory Casanave wrote:
(016)
As an update from the OMG meeting last week, the SOA SIG adopted the
following definition of SOA;
(017)
Service Oriented Architecture is an architectural style for a
community of providers and consumers of services to achieve mutual
value, that:
Allows participants in the communities to work together with
minimal co-dependence or technology dependence
Specifies the contracts to which organizations, people and
technologies must adhere in order to participate in the
community
Provides for business value and business processes to be
realized by the community
Allows for a variety of technology to be used to facilitate
interactions within the community
(018)
The corresponding definition of service has not yet been finalized
but the sense of the group is that there would be both a
business/domain centric notion of service as well as an interaction
focused definition.
(019)
In both cases this seems to fit well with the notion of SOA that is
evolving in this group and in the SOA Demo.
(020)
Regards,
(021)
Cory Casanave
_________________________________________________________________
Subscribe/Unsubscribe/Config:
http://colab.cim3.net/mailman/listinfo/soa-forum/
Shared Files: http://colab.cim3.net/file/work/soa/
Community Portal: http://colab.cim3.net/
Community Wiki:
http://colab.cim3.net/cgi-bin/wiki.pl?AnnouncementofSOACoP
(022)
Regards,
(023)
Chris
+++++
(024)
========================================================================
Dr. Christopher J. Harding
Forum Director for SOA and Semantic Interoperability
THE OPEN GROUP
Thames Tower, 37-45 Station Road, Reading RG1 1LX, UK
Mailto:c.harding@xxxxxxxxxxxxx Phone (mobile): +44 774 063 1520
http://www.opengroup.org
******************************************************************
IT Architecture Practitioners Conference
Hyatt Regency, Coral Gables, FL July 17-19, 2006
Member Meetings - July 17-21, 2006
http://opengroup.org/miami2006/
========================================================================
TOGAF is a trademark of The Open Group (025)
Service_Orientation_Def_v1.ppt
Description: MS-Powerpoint presentation
_________________________________________________________________
Subscribe/Unsubscribe/Config: http://colab.cim3.net/mailman/listinfo/soa-forum/
Shared Files: http://colab.cim3.net/file/work/soa/
Community Portal: http://colab.cim3.net/
Community Wiki: http://colab.cim3.net/cgi-bin/wiki.pl?AnnouncementofSOACoP (01)
|