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Analytical hierarchy process is widely used in the system assessment. While a large number of operations need to be carried out to determine the consistency of comparison matrix. And when the comparison matrix is inconsistent, which should also be regulated and reduces the quality and efficiency of the assessment. In this essay, fuzzy consistent matrix which is verified using experimental data is adopted instead of comparison matrix. The fuzzy consistent matrix is in better consistent. So that it is applied in practical problem such as system performance assessment.