Business specific interaction at run-time

We present in this paper our concept of '' Business Interaction Patterns (BIP)'' which allows the handling of interaction between a user and a system at run-lime to take into account specific business needs. These patterns rely upon a generalization to interaction of the concept of Design Pattern. They make possible an abstraction from both the interface and the application and define what should be done regarding business knowledge in order to handle the interaction between the user and the system. Thus. a BIP specifies how the interaction has to be handled in order to allow the user to move from one state to another. Like design patterns, one of the main interest in Business Interaction Patterns is that they can be reused in another application. Moreover, they can be replaced by other ones in order to allow different interactions regarding different business needs.