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Verification and Validation of software systems often consumes up to 70% of the development resources. Testing is one of the most frequently used Verification and Validation techniques for verifying systems. Many agencies that certify software systems for use require that the software be tested to certain specified levels of coverage. Currently, developing test cases to meet these requirements takes a major portion of the resources. Automating this task would result in significant time and cost savings. This testing research is aimed at the generation of such test cases. In the proposed approach a formal model of the required software behavior (a formal specification) is used for test-case generation and as an oracle to determine if the implementation produced the correct output during testing.
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