Chapter 1. Introducing SOA

“Yet another book on service-oriented architecture (SOA),” you might think. Hundreds of titles are already for sale at bookstores. After four good years in use, the acronym SOA has developed such a strong market value that you can buy almost anything as “SOA-something.” Marketers quickly detected the strong drive and so renamed or described products as SOA compliant, made with SOA, built for SOA, and SOA whatever. And even with the vast number of books that cover SOA, a number of issues have yet to be covered. So, in this book, we discuss the “missing items.”

The principles of SOA are not new and were not invented concurrently with the acronym, and many vendors “feel justified” claiming an SOA basis for their products. ...

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