The agents have a rule based behaviour defined as a spatial and temporal evolution. A consistent set of agent structures, actions and rule types is highlighted to support a general oriented visual programming. The model concerns on the notion of trajectory and topological information used in a cooperative evolution to control applications which are based on real time processes synchronization, data flow diagrams, graphical animation, metaphorical user interface, visual programming, multimedia and artificial intelligence techniques. Keywords user interfaces, multiagents, visual programming, direct manipulation, rule based behaviour. Copyright on this material is held by the authors.
Behavioural rules are concrete and accessible graphic objects.
Julia's behavioural repertoire includes moving around in and mapping of the environment. Julia has moods, feelings and attitudes towards players and a good memory. There are also tools for describing systems of cooperating processes. The work reported here attempts to estimate the convenience of multi-agent based interactive applications. It proposes a multi-agent based environment which provides for the implementation of the graphical user interfaces.