Caching Mechanism in Peer-to-Peer Networks through Active XML

Active XML (AXML) is a new markup language framework that provides the ability to exchange intensional data. The intensional data is defined in the AXML documents as calls to local or remote Web services. AXML aims to improve the task partition and distribution in P2P networks. However, if one peer joins more than one P2P network and its services are invoked frequently by a large number of peers, this peer can become a bottleneck and requires large computational resource. In this paper we show that a caching mechanism in P2P networks based on the AXML technology can be a promising solution because AXML properties will simplify the caching procedures in these networks. We propose three layers of caches that will be located in: the bottleneck service provider, nominated peer(s) in the P2P network and the service requester.