Test Case Generation on the Basis of Formal Speci cations

Test case design is the most important activity for a trustworthy software test. Formal speci cations are solid foundations for systematizing the test procedure and for supporting it with tools. In the talk a method for generating test cases based on formal speci cations of reactive systems is presented. The speci cation notation used is a combination of Z and Statecharts, where Z schemas are used to specify the data transformations and invariants, and Statecharts describe the dynamic behaviour of the software system. The main emphasis of the talk lies on testing based on Z.