(ESB (EnterpriseServiceBus, enterprise service bus) is the product of the combination of traditional middleware technology and XML, Web services and other technologies. ESB provides the most basic connection center in the network and is a necessary element to build the nervous system of the enterprise. An Enterprise Service Bus (ESB) is a state-of-the-art approach to delivering reliable, guaranteed messaging. ESB middleware products utilize Web services standards and interfaces with recognized MOM protocols for reliable messaging (eg IBM's WebSphereMQ, Tibco's Rendezvous and SonicSoftware's SoniCMQ). Common features of ESB products include the ability to connect heterogeneous MOMs, encapsulate the MOM protocol with a Web Services Description Language interface, and transmit Simple Object Usage Protocol (SOAP) transport streams over the MOM transport layer. Most ESB products support direct peer-to-peer exchange between distributed usage through an intermediary layer such as integration...)
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