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The Web Service Choreography Interface (WSCI)
is an XML-based language used to describe the flow of messages
exchanged by a web service in
the context of a process. WSCI is an example of a web
service orchestration language. It allows the description
of the observable behavior of a Web service in a message exchange.
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WSCI also describes the collective message exchange
among interacting Web services, providing a global, message-oriented
view of a process involving multiple web services.
BEA, Intalio, SAP and Sun Microsystems initially
championed the specification. BEA later backed the BPEL4WS
specification along with IBM and Microsoft.
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