In this paper we focus on dialogue management in the context of an application controlling system. The discrepancy between the representations of the utterances on the one hand and the associated sequences of actions on the other hand leads us to propose an event-based representation for both. We then show how event summation principles provide us with means to build the appropriate dialogue structure for anaphora resolution. Finally we briefly describe the implementation in our dialogue platform MultiDial2 of the model we propose.