Abstract
To improve the test automation in software development process, following the researches on test cases generation technology from models, an incremental test case generation approach is proposed based on finite au- tomata, and Event deterministic finite automata (ETDFA) are employed to describe the sequence diagram models of system interaction. By model checked with Proposi- tional projection temporal logic (PPTL), the correctness of ETDFA is verified. Then we can get the composed au- tomata by synthesis rules, and generate the test cases in- crementally by test cases generation algorithm. Case stud- ies are presented to show that this approach enables to improve test cases correctness, and reduce the complexity of test cases generation process.
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