9. A computer program product comprising a computer useable medium having a computer readable program, wherein the computer readable program, when executed on a computing device, causes the computing device to: receive a description language document that describes one or more Web services interface components; associate a Web services interface component within the one or more Web services interface components with one or more call flow segments; insert a call flow binding into the description language document to form an extended description language document, wherein the call flow binding associates an interaction operation with a binding point in a given call flow segment within the one or more call flow segments; and execute a converged application based on the extended description language document.
11. The computer program product of claim 9 , wherein the interaction operation is a notify operation, wherein the computer readable program, when executed on a computing device, further causes the computing device to: responsive to reaching the binding point in the given call flow segment, send a notification to the Web services interface component.