Cooperative Distributed UDDI (dUDDI) Architecture for P2P Service Networks

A web service is a software interface that describes a collection of operations that can be accessed over the Internet using standard protocols. Though web services have significant features, centralized UDDI architecture is one of the most challenging issues which attract researchers for an efficient solution. In this paper, a cooperative distributed UDDI (dUDDI) architecture for P2P service networks has been proposed. dUDDI system decentralizes the traditional UDDI using a collection of minimum traffic components which maintains the service provider discovery start list. Service providers act cooperatively on the service discovery operation by linking to other providers who offer similar services. A comprehensive description of the various elements in the dUDDI architecture and their internal component is presented. We also presented an effective algorithm for service publish and discovery operations using dUDDI architecture. The proposed model improves the efficiency of service resource retrieval and also applies different security measures. The proposed dUDDI model is evaluated with the best-in-class working decentralized UDDI models by considering different conditions like the registry size, QoS factors and discovery of the relevant services based on user request. A testbed has been generated consisting of 1000 web services of various domains and services are manually divided into 21 domains with different QoS requirement combinations. The experimentation results justify that the proposed model outperforms the existing decentralized UDDI models in terms of precision, recall and f-measure factors.