基于QFD-PUGH的人机界面评价方法研究

Research on human-machine interface evaluation method based on QFD-PUGH

人机界面的设计优化包括用户需求转化为设计需求的准确性和设计需求形成最优方案2部分,设计评价是界面设计优化的重要手段。在当前的评价方法中,上述两者是分阶段进行,数据共享性差。针对该问题,提出一种基于质量功能展开(QFD)和PUGH决策矩阵融合的人机界面评价方法。首先运用层次分析法确定人机界面的用户需求权重,结合界面产品特性将对应的用户需求映射为相关设计需求;接着基于QFD构建质量屋模型,根据用户需求和设计需求相关程度的矩阵得出界面设计需求要素的权重,实现了将用户主观描述的需求转化为界面优化的设计需求;最后将QFD模型得出的设计需求及其权重作为PUGH决策评价的标准,选出最优界面设计方案,完成对人机界面设计的综合评价。以家用跑步机的人机界面评价为例,验证了QFD和PUGH融合的人机界面评价方法的有效性,为完整的人机界面实现过程提供了决策方法和优化思路。

The human-machine interface design and optimization consists of the transformation from user demand to design demand and the formation of the best program based on design demand.Evaluation is significant for design optimization,while in the existing studies on evaluation method,the above two parts are performed in different stages,leading to inefficiency in data sharing.For this problem,an evaluation method of human-machine interface based on quality function deployment(QFD)and the PUGH decision matrix was put forward.Firstly,the Analytic Hierarchy Process was adopted to produce the weight of user demand,and corresponding user needs were mapped to relevant design requirements based on interface product features.Then a house of quality model was built based on QFD.According to the matrix of the degree of correlation between user requirements and design requirements,the weight was obtained,and the user’s subjective description was transformed into the design requirements.Finally,the design requirements and weights derived from the QFD were employed as the criteria for PUGH decision-making evaluation,the best scheme was chosen,thus completing a comprehensive evaluation of interface design.Taking the interface of the household treadmill as an example,it shows the effectiveness of the proposed method,and provides decision-making method and optimization ideas for the whole process of human-machine interface implementation.