Mobile Agent Based Distributed Query System for National Registry Card1

Abstract

Mobile agents are autonomous programs that can migrate i n a heterogeneous network to perform tasks on behalf of their owners. Mobile agents also raise several security issues related to the data carried by an agent itself. In mobile agent based application, both code and data can be transferred together from on e machine to another in the form of class . T his paper is intended to retrieve data from many distributed computers in which data is stored in several sites that are formed as distributed database . This system will implement as these steps: first, it will i mplement distributed query frame that will process the user queries and retrieve the necessary information, t hen, it will use the query rule to enhance this system . This paper implements mobile agent that includes master agent and worker agent. In master a gent, the user can retrieve national registry information in which data is stored in master agent’s database. Worker agents can only distribute their database to master agent. After distributing, master agent can retrieve national registry information in w hich data is not only stored in master agent’s database but also worker agent’s database.