Unified Telecom and Web Services Composition: Problem Definition and Future Directions
In the domain of web applications, the Service-Oriented Architecture (SOA) promotes the composition of coarse-grained web services to build more complex web applications using standards such as WS-BPEL. This paradigm encourages software modularity and re-use, language and platform independence, distributions, and integration across enterprise boundaries. At the same time, in the domain of telecommunications, standards such as the IP Multimedia Subsystem (IMS) architecture and the SIP Servlet API enable the composition of individual SIP applications into complete services, reaping similar benefits. There are also ongoing efforts to integrate the two domains.