Thomas Erl is the world’s top-selling SOA author and Series Editor of the Prentice Hall Service-Oriented Computing Series from Thomas Erl (www.soabooks.com). With over 100,000 copies in print worldwide, his books have become international bestsellers and have been formally endorsed by senior members of major software organizations, such as IBM, Microsoft, Oracle, BEA, Sun, Intel, SAP, CISCO, and HP. His most recent titles - SOA Design Patterns and Web Service Contract Design and Versioning for SOA - were co-authored with a series of industry experts and follow his first three books Service-Oriented Architecture: A Field Guide to Integrating XML and Web Services, Service-Oriented Architecture: Concepts, Technology, and Design, and SOA Principles of Service Design. Thomas is currently working with over 20 authors on a number of upcoming titles, including SOA Governance, SOA with .NET, SOA with Java, ESB Architecture for SOA, and SOA with REST. He is also overseeing the SOAPatterns.org initiative, a community site dedicated to the on-going development of SOA patterns. Thomas is the founder of SOA Systems Inc. (www.soasystems.com), a company specializing in vendor-neutral SOA consulting and training services. He is also the founder of the internationally recognized SOA Certified Professional program (www.soacp.com and www.soaschool.com). Thomas is a speaker and instructor for private and public events and is regularly invited to Gartner summits. He has delivered many workshops and keynote speeches, and is on the program committee for the International SOA Symposium. Articles and interviews by Thomas have been published in numerous publications, including SOA World Magazine, The Wall Street Journal and CIO Magazine. For more information, visit www.thomaserl.com.
With the unwavering prominence of service-oriented architecture (SOA) there
is an increasing interest in understanding what exactly it means for
something to be considered "service-oriented." Thomas Erl recently completed
a lengthy research project for SOA Systems Inc. into the origins of SOA and
the current state of service-orientation among all primary SOA technology
platforms. This body of work contributed to the mainstream SOA methodology
developed by SOA Systems and was also documented in Thomas's new book,
Service-Oriented Architecture: Concepts, Technology, and Design. We caught up
with Thomas (a previous contributor to WSJ) to ask him to share some of the
insights he gained from his work with SOA and service-orientation.
There's no need to mention that SOA has be... (more)
One of the fundamental goals when designing service-oriented solutions is to
attain a reduced degree of coupling between services, thereby increasing the
freedom and flexibility with which services can be individually evolved.
Achieving the right level of coupling "looseness" is most often considered a
design issue that revolves around the service contract and the consumer
programs that ... (more)
Originally inspired by techniques used to design buildings and cities, and
popularized by the Gang of Four during the mainstream emergence of
object-orientation, design patterns have seen us through the various shifts
in architecture, technology, and, of course, design. Pattern catalogs have
periodically emerged, one building on the other, and each revealing a set of
problem-solving tech... (more)
Enterprise-wide harmonization is a desirable and ideal target state that
fully supports pretty much everything SOA and service-orientation stand for.
For those that have achieved such a state, bless your standardized hearts.
You have accomplished something that has eluded many others. However, not
attaining this state does not mean you cannot successfully adopt SOA.
In some circles it has... (more)
Many are comparing notes on two well-publicized paths to achieving SOA. The
bottom-up approach is currently the most common variety, where Web services
are created on an "as need" basis to fulfill mostly integration-related
requirements. These services are typically application specific and simply
re-create traditional integration channels over the open Web services
communication framewo... (more)
Thomas Erl is the world’s top-selling SOA author and Series Editor of the Prentice Hall Service-Oriented Computing Series from Thomas Erl (www.soabooks.com). With over 100,000 copies in print worldwide, his books have become international bestsellers and have been formally endorsed by senior members of major software organizations, such as IBM, Microsoft, Oracle, BEA, Sun, Intel, SAP, CISCO, and HP. His most recent titles - SOA Design Patterns and Web Service Contract Design and Versioning for SOA - were co-authored with a series of industry experts and follow his first three books Service-Oriented Architecture: A Field Guide to Integrating XML and Web Services, Service-Oriented Architecture: Concepts, Technology, and Design, and SOA Principles of Service Design. Thomas is currently working with over 20 authors on a number of upcoming titles, including SOA Governance, SOA with .NET, SOA with Java, ESB Architecture for SOA, and SOA with REST. He is also overseeing the SOAPatterns.org initiative, a community site dedicated to the on-going development of SOA patterns. Thomas is the founder of SOA Systems Inc. (www.soasystems.com), a company specializing in vendor-neutral SOA consulting and training services. He is also the founder of the internationally recognized SOA Certified Professional program (www.soacp.com and www.soaschool.com). Thomas is a speaker and instructor for private and public events and is regularly invited to Gartner summits. He has delivered many workshops and keynote speeches, and is on the program committee for the International SOA Symposium. Articles and interviews by Thomas have been published in numerous publications, including SOA World Magazine, The Wall Street Journal and CIO Magazine. For more information, visit www.thomaserl.com.
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