Validation test case selection based on multifactor

This paper analyzes the existing selection methods of system and validation test case, then it proposes a method for choosing test case based on multiple influencing factors in consideration with various elements that have an impact on test case selection. Firstly, importance of test content, requirement coverage, software defect number and test time are picked out and synthetically handled as impact factors. Secondly, it exploits the principle of correspondence between subjectivity and objectivity for assigning the factor weight. Finally, the selection result what is the basis for selecting test cases is calculated using the method of weight sum. The results of experiments which verify the method effectiveness indicate that this approach can cover several test requirements and detect a number of faults within a relatively short period. It supplies a good way of selecting validation test cases for software testers.