1 Sangam: Universal Interop Protocols for E-Service Brokering Communities using Private UDDI Nodes

This paper focuses on the development of protocols for brokering of interoperable e-services. The proliferation of e-services will have significant impact on e-business and various facets of daily life. This trend gives rise to the requirement of automated service discovery and binding. Applications have to discover the most relevant e-services that can satisfy the needs of the user. The discovered e-services have to be interoperable with the user application. These two problems of relevancy and interoperability among e-services have to be solved to make e-services truly pervasive. Sangam addresses these two problems by introducing a framework of brokering communities and a suite of related protocols. Unlike the emerging global registry for Universal Description, Discovery and Integration (UDDI), Sangam communities use private UDDI nodes to provide reliable, highly scalable and more relevant brokering of e-services. E-services are described by using WSDL documents. In this paper, we describe structure of the hierarchical framework and the protocols used for service discovery at each layer of a Sangam community. A prototype of the Sangam community and its protocols is presented. 1