Abstract: The test of GUI is a veritable challenge．One of the concernful reasons is that there are many context events which would cause determinate influences over the results of testing．This problem can be solved by the technologies of model-based GUI testing．Two of the frequently used graphical user interface(GUI) model in model-based GUI testing technologies are the event flow graph(EFG) and the event interaction graph(EIG)．Both of the two kinds of models give a certain presentation of the events interacting relationships,and the EIG makes significant improvements form the EFG．Our paper provides the GUI events with a specific division through a simple GUI instance and also improves the MX algorithm for the sake of adaptation to the new division of the events．Finally,according to the property of event-driven in GUI and the divided GUI events in this paper,the paper proposes a new method:driven algorithm．Some examples show that the method makes the EFG converted into EIG more easier.

Key words: Graphical user interface(GUI),Model-based testing,Event flow graph(EFG),Event interaction graph(EIG)