考虑决策者心理行为的软件质量评价方法

Software quality evaluation method considering decision maker’s psychological behaviors

针对软件质量评价方法中缺乏考虑决策者心理行为的问题,提出一种基于区间二元语义的交互式多准则决策(TODIM)软件质量评价方法。首先,通过区间二元语义表征专家对软件质量的评价信息;其次,利用主观赋权法和逼近理想解排序法(TOPSIS)分别计算软件质量属性的主客观权重,并在此基础上通过组合赋权法获取软件质量属性的综合权重;然后,为更好地刻画专家在软件质量评价过程中的心理行为,将TODIM引入软件质量评价中。利用TODIM方法对高速铁路调度系统的助理调度员终端进行软件质量评价,结果表明铁路软件供应商提供的第3款助理调度员终端软件的占优度值最高,质量最优。将该方法与后悔理论方法以及II类偏好序结构排序法(PROMETHEE-II)进行对比分析,所得结果表明三种方法在质量最优软件的选取上具有一致性,然而三者的总体排序有所差异,说明所构建方法在描述多准则的交互关系和决策者的心理行为上具有较强的优越性。

Aiming at the lack of consideration of the psychological behaviors of decision makers in software quality evaluation methods,a TOmada de Decisao Interativa e Multicritevio(TODIM)software quality evaluation method based on interval 2-tuple linguistic information was proposed.Firstly,interval 2-tuple linguistic information was used to characterize the evaluation information of experts for software quality.Secondly,the subjective and objective weights of software quality attributes were calculated by subjective weighting method and Technique for Order Preference by Similarity to Ideal Solution(TOPSIS)respectively.On this basis,the comprehensive weights of software quality attributes were obtained by combined weighting method.Thirdly,in order to better describe the psychological behaviors of experts in the process of software quality evaluation,TODIM was introduced into software quality evaluation.Finally,the method was used to evaluate the software quality of assistant dispatcher terminal in high-speed railway dispatching system.The result shows that the third assistant dispatcher terminal software provided by the railway software supplier has the highest dominance value and its quality is the best.The results of comparing this method with the regret theory and Preference Ranking Organization METHod for Enrichment Evaluations(PROMETHEE-II)show that the three methods are consistent in the selection of the best quality software,but the overall rankings of the three methods are somewhat different,indicating that the constructed method has strong superiority in describing the interaction between multiple criteria and the psychological behaviors of decision makers.