Data Agents System: A Query Service based on Mobile Agent Technology

摘要

The rapid growth of the Internet and the World Wide Web (Web) provides access to vast amounts of valuable information information. However, the problem of information overload is an obstacle to the practical use of potentially useful information on the Web. The use of mobile agents in this kind of applications represents a novel approach and potentially solves most of the problems that exist in centralizes client; server solutions, because they are programs with a persistent identity which moves around a network and can communicate with this environment and other agents. We present a possible solution for this problem: the Data Agent system - a mobile agent application for the retrieval of distributed structured information in a scenario of several on-line bookstores. This system was developed for Web-based distributed access to database systems based on Java-based mobile agents. This paper describes the project architecture and its implementation that is based on IBM's Aglets Workbench. It also emphasizes the obtained results with the several experiments realized, concluding that the implementation of the system shows that its performance is comparable to, and in some case outperforms the current approach.