What Is a Web Service?


Web services is a technology approach whose characteristics are well suited for bridging together information systems, even if they are implemented on disparate platforms or through differing technologies. For this reason, Web services can enable organizations to strengthen their value propositions by revealing their core competencies through a suite of interoperable software solutions, which may exist internally or externally to the enterprise.

To enable this feat, a Web service can be conceptually thought of as a self-contained, coarse-grained, self-describing , loosely coupled programmable component that can be exposed as a service-oriented system on a network and invoked across the Web (Intranet, Extranet, or Internet). The functionality of a Web service is enabled through one or more methods that process incoming messages, which can be either document or procedure-oriented . Web services can exist as independent providers of services or can collaborate with other Web services to provide a suite of services. Architecturally, a Web service can be considered a network-centric, services-oriented architecture connected over the Web as opposed to a system of distributed object-oriented components interfaced via object-specific protocols (CORBA over IIOP, COM over DCOM, and Java over RMI).



BEA WebLogic Platform 7
BEA WebLogic Platform 7
ISBN: 0789727129
EAN: 2147483647
Year: 2003
Pages: 360

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