In the sphere area of software engineering, several applications have been developed. An application requires changes because of changes in the customer requirements. Testing is a process of executing the program with the intent of finding the software bugs. Regression Testing is the systematic series of action for carrying out the set of test cases that passed on the previous release of the application under test in order to substantiate that the original characteristics and functions persist working as they were previously. Regression testing consumes maximum for maintenance in the terms of time and cost. The existing approaches for reduction of test cases are not sufficient to handle the problems. For that reason, an approach of deriving optimized test cases that provide the maximum test coverage has been proposed. Use cases are considered for identifying the flows and to reduce the number of test cases to provide satisfactory results.