Hybrid P2p Model Based On The Classification Of Services In Its Service Discovery Mechanism

With the rapid development of Internet technology in recent years,Web Services is a new-emerged concept in the area of distributed computing.It enables interoperation and dynamic integration of applications based on different operation systems and written with various programming languages.It has become the core part of next generation e-Business and brought new opportunities to enterprise application intergration thought it's about only a few years for the development of Web Services. With the rapid development of Web Services, it's an important question for discussion that how to discover the services which the requesters expected rapidly and accurately. There are two objects in the research of Web Services discovery mechanism. One is how to discover the services which contains the description information for Web service among a large of registerd services .The other is how to discover the services which most fits for the requirements of the requesters. The traditional research wok on the discovery mechanism is a method which based on the centralized network model. There were so much disadvantages inevitably: The system depends on the servers a bit thick, and there must be a bottle-neck in efficiency and be in high dangerous of single failure.The system costs too much in maintenance and it's difficult to extend the scale. The percentage of making use of the resources was too low.The Peer-to-Peer network breaks the traditional model of centralized network.Each node not only plays a role of server that provides the service but also plays a role of client that enjoys the uses of resourses in Peer-to-Peer network. The Peer-to-Peer technology make it possible that resources in network can be taken full advantage of. It could provide a distributed method for the discovery of Web Services. The discovery mechanism of hybrid P2P system model take good use of the discovery mechanism of indexical directory P2P system model and the discovery mechanism of decentralized P2P system model. The mechanism of hybrid P2P system model is in good performance, good scalability, and make it easy for the management of the system. The discovery mechanism of hybrid P2P system model became the hotspot in research of discovery mechanism for resources in a P2P method.Based on the direction of development and obstacles in the fields of Web Services discovery and the development of P2P technology recently, the paper is devoted to the issues of vital content in hybrid P2P system model, the discovery mechanism for Web...