Design and implementation of transactional agents for manipulating distributed objects

A transactional agent is a mobile agent which manipulates objects distributed in computers. A transactional agent is composed of routing, manipulation, and commitment agents. A way to move to computers is decided in the routing agent. Objects in each computer are manipulated in a manipulation agent. After visiting computers, a transactional agent makes a destination on commitment by using the commitment agent. In addition, objects obtained from a computer in the manipulation agent have to be delivered to other computers where the transactional agent is performed. We discuss a model of transactional agent and implementation of a transactional agent on database servers and evaluate the transactional agents.