A Novel Methodology for Web Services Discovery in Gnutella-Like Networks

Abstract

The Web services technology has been initiated by industry, and lots of large companies are working on Web services technology and apply it in real world applications. However, the existing Web service registration and discovery are processed in a centralized approach, which cannot easily scale to a growing number of users. With the advantages of scalability and fault-tolerance, P2P technology is suitable for enhance the scalability of Web services in nature and can also make it possible to discover them easily. Because the P2P networks can provide the framework for discovery, publication, and registration for Web Services, the central registry is not required when integrating Web Services. So, in this paper, we proposed a methodology, which consist of two parts, to integrate distributed Web Services in Gnutella-like networks, and it makes those services collaborative. One is publishing the information of Web services to high degree nodes, and then many information chains of Web service are formed in Gnutella. Another is combining high degree walk and random walk methods to discover the target Web service. Finally we analyze the performance of the proposed methodology with simulation. The results show that the methodology can achieve high success rate, low traffic and load balance, so that it acquires the integration of Web Services scalable.