Application of UML Statechart Diagram in Regression Test

Unified Modeling Language(UML) statechart diagram is a system testing technique used to test software systems.It is the extension of requirement-based regression testing.Through the dependency analysis,this paper generates the UML statechart diagram and dependency diagram.The approach identifies the original model and the modified model.It provides a method for the program comprehension,errors finding and modification during the process of regression testing.A case study named SATM is given to show the applicability of the method used in the regression test.