When designing black-box use case, the completeness and non-redundancy of use cases set must be considered. This paper presents a generation methods of test case based on combined key factors, not only improving quality of black-box use cases, but also effectively reducing the size of test case set, then improving the efficiency of test.%黑盒测试用例设计时必须考虑用例集的完备性和无冗余性.文章提出了一种基于要因组合的测试用例生成方法,在提升黑盒测试用例的设计质量的同时,有效的降低了测试用例集的规模,从而提高了测试效率.
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