The research of the test case prioritization algorithm for black box testing

In order to improve the efficiency of software test case execution, this paper analyzed the impact of some factors to test cases prioritization and presented two adjustment algorithms. These factors included software requirement prioritization, software failure severity and software failure probability level. Firstly, gave the definition of software requirement prioritization, the ranking methods of software failure severity and software failure probability level, the description of the relationship between test cases and test requirements. Then, presented an initial test case prioritization method based on the analysis. And then, proposed a dynamic adjustment algorithm using of software requirement prioritization and software failure probability level when software failure occurred. Experimental data show that the two test case prioritization algorithms can improve the efficiency of software testing and are helpful to find more software defects in a short period.