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The SOA with reach: Web-Oriented Architecture
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04/02/2006, By Dion Hinchcliffe
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An important concept in Web 2.0 is that Web-based software should offers its functionality not only via the browser, but also as open Web services so that it can be mashed up in new and unintended ways. This takes software from being a mere application and turns it into a true platform. A great many new online software applications are actually doing this now, even if it's just one-way via RSS. And it's not just online consumer applications, major players like Salesforce are encouraging API use of their products on the Web and are even creating public directories, like Salesforce's AppExchange or Yahoo!'s new application Gallery, to make sure folks are aware of, and can find, the resulting third-party mashups.
Essentially, WOA describes a core set of Web protocols like HTTP and plain XML as the most dynamic, scalable, and interoperable Web service approach. The only real difference between traditional SOA and the concept of WOA is that WOA advocates REST, an increasingly popular, powerful, and simple method of leveraging HTTP as a Web service in its own right (and carefully devised by the co-creator of HTTP, Roy Fielding.)
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