Governance and Wrapup
Unit 5a-4
© 2007 IBM Corporation
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IBM Americas Advanced Technical Support
Washington Systems Center, Gaithersburg, MD
Starting Out
IBM SOA lifecycles …
There are three basic ways you can approach this question …
Enterprise Level
• SOA a strategic initiative at the
enterprise level
• Suggests a broader Component
Business Modeling consulting
engagement
Line of Business
• SOA across a set of related projects
under a LOB decision maker
• Client Architecture Readiness
Evaluation
Single Project
• A way to test the waters and gain
experience
• SOA Jumpstart
No one is “best” -- it all depends on the needs of the business and the state
of SOA awareness, understanding and acceptance in the organization
There are three basic ways you can approach the topic of staring out with SOA and implementing
it. There are, of course, variations on each of these … as well as the opportunity to blend these.
But these three will serve the purpose of illustrating the basic approaches.
• Enterprise Level -- here you approach the topic from the top down. This is a kind of “all in”
strategy, where the start of the analysis is done at the highest level, and the business is
analyzed not from a technology point of view (initially), but from a business component point of
view. Clearly this would require buy-in from the highest level. IBM Business Consulting
Services has offerings to assist enterprises in assessing their business and determining how,
where and why SOA would be beneficial.
• Line of Business -- a smaller version of the Enterprise Level, here the focus is fenced within a
particular line of business (division, organization unit), or possibly related to a particular set of
projects within an enterprise (for example, the shipping function). IBM services provides an
architectural readiness evaluation to help with this process.
• Single Project -- when the desire is to start small and build experience from there. This
makes good sense in a lot of cases. Here a particular potential service is selected and the
solution is built around that. Experience is gained in a small, controlled (and often less risky)
way.
The ubiquitous “it depends” answer is given for which of these is best. A lot depends on the
business as well as the current state of mind of the business decision makers.
Let’s now see how IBM describes the “lifecycles” of SOA adoption.
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