Web Services are self-contained modular applications that can be published and invoked over the Internet. Web Services provide well-defined interfaces that describe the services provided. Unlike Web server applications that generate Web pages for client browsers, Web Services are not designed for direct human interaction. Rather, they are accessed programmatically by client applications. This section gives an overview of web services and web services support.
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Web Service applications are server implementations that do not require clients to use a specific platform or programming language. These applications define interfaces in a language-neutral document, and they allow multiple communication mechanisms. Web Services are designed to work using Simple Object Access Protocol (SOAP). SOAP is a standard lightweight protocol for exchanging information in a decentralized, distributed environment. SOAP uses XML to encode remote procedure calls and typically uses HTTP as a communications protocol. Web Service applications use a Web Service Definition Language (WSDL) document to publish information on interfaces that are available and how to call them. On... more |
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