Reactive Web agents with open constraint programming

This paper describes a new programming system for writing Web applications with reactive agents, i.e. the agents can have complex responses which depend on how the environment changes. Our prototype system is based on the open constraint programming framework using the constraint logic programming language CLP(R). The benefit of reactive Web agents is that activities of agents can be coordinated and synchronized using a common store and the agents can themselves be written as a system of interacting rules. Our thesis is that such a system makes it easy to write powerful reactive applications. We use a stock trading system to illustrate our reactive agents. Some details of the implementation are also given.