AHP-Based Crucial Systems Requirement Critical Degree Algorithm

This paper´s research work mainly pays attention to the requirement consistency validation. In order to solve the consistency evaluation and multi-branch selection problem during requirement validation process, this paper proposes a kind of requirement measurement method. At first, this paper proposes a keywords preprocessing method based on keywords extraction, synonyms expansion and a certain words reducing strategy. The method eliminates the influence to requirement measurement by thesaurus, low and high frequency, non-noun keywords. This paper proposes estimation matrix establishing rules in AHP model, and proposes requirement critical degree algorithm. The above points avoid the imprecise requirement qualitative analysis, and solve the quantitative evaluation problem to the requirement property value.