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A Web Services Primer
Web services are a new breed of Web application. They are self-contained, self-describing, modular applications that can be published, located, and invoked across the Web. Web services perform functions, which can be anything from simple requests to complicated business processes.


Free Web Services Tutorials

Amazon® Web Services

Google® APIs




Uniteed States Postal Service® APIs









What Web Services are NOT

While most people are in alignment regarding the technology, there continues to be confusion in the description of what Web services are really capable of, and what their attributes are. Rather than describe each element exhaustively, let me take a cut at examining what Web services are NOT.


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XML Tutorials
First 3 lessons are free. The Extensible Markup Language (XML) is a subset of SGML. Its goal is to enable generic SGML to be served, received, and processed on the Web in the way that is now possible with HTML.


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