Product Code: IT016-001473
Enterprise architecture (EA) and service-oriented architecture (SOA) have the same objective of aligning business and IT, albeit from different perspectives, so their relationship should not be hard to understand. However, very few organizations have exploited the synergies between EA and SOA to derive the true business value of these two architectural approaches.
- Service-oriented enterprise architecture (SOEA) can drive greater IT agility and provide other benefits such as reduction in cost of IT, better application functionality, and greater infrastructure manageability. A successful SOEA implementation calls for a larger role for SOA, extending well past the functional relationships that exist between different architectural domains of EA and SOA.
- Understand the functional relationships between different architectural domains of EA and the corresponding components of the SOA stack.
- Get an idea of the limitations of top-down and bottom-up approaches to SOA.
- Understand how a complementary approach can help in achieving business-IT alignment.
- Why should EA and SOA initiatives not be run in isolation or in parallel?
- Is SOA governance a suitable approach for implementing an enterprise-wide governance strategy?
- Why SOEA does not equate to "SOA plus EA"?
- What are the key requirements of an SOEA?
Table of Contents
- Ovum view
- Key messages
THE BUSINESS/IT DISCONNECT HAS LED TO THE FAILURE OF MANY EA AND SOA INITIATIVES
- The lack of support from business leaders remains a major barrier to the
adoption of EA
- An effective business-IT coordination is indispensable for achieving an
ORGANIZATIONS MUST UNDERSTAND THE EA-SOA RELATIONSHIP
- EA and SOA are interrelated disciplines
- EA and SOA initiatives should not be run in isolation or in parallel
- Top-down or bottom-up approach?
A COMPLEMENTARY APPROACH WILL HELP IN THE REALIZATION OF SOEA
- SOEA does not equate to u201cSOA plus EAu201d
- SOEA extends the scope of SOA
- Using EA with SOA helps in achieving business-IT alignment
- An effective SOEA strategy should have enterprise-wide SOA at its core
- Recommendations for enterprises
- Recommendations for vendors
- Further reading
- Ovum Consulting
- Figure 1: What is the level of acceptance of EA within your organization?
- Figure 2: Main barriers to the adoption of EA
- Figure 3: The relationship between EA and SOA
- Figure 4: Refactoring a legacy application using SOA
- Figure 5: A hybrid approach to SOA
- Figure 6: Achieving interoperability with SOEA