基于熵权和灰关联的老年人信息终端界面布局评价研究

目的 为了优化现有信息终端界面设计,提升老年用户的体验。方法 首先运用基本用例对信息终端的任务过程进行描述;接着以老年人自身需求为出发点,从结构、任务、认知3个层面构建老年人信息终端界面布局评价体系;其次通过设计调研制作出实验样本,邀请老年人进行界面布局评价实验;然后根据评价实验结果,采用熵权法对评价体系中每个评价指标进行权重分配;最后结合灰色关联分析法将实验结果转化为灰色关联度,通过比较灰色关联度的大小,从而确定最优方案。以银行ATM机作为研究案例,结果表明所提出的方法具有较高适用性。结论 通过基于熵权法和灰色关联分析法的信息终端界面布局评价模型,可以量化老年人的用户偏好,有效地对老年人信息终端界面布局进行评价,对界面布局优化有一定指导意义。

Layout Evaluation of Information Terminal Interface for the Elderly Based on Entropy Weight Method and Grey Relational Analysis

The work aims to improve the interface design of current information terminals and enhance user experience for the elderly. First of all, information terminal processes were described with essential use cases. Based on the needs of the elderly, the evaluation system of information terminal interface layout for the elderly was constructed from structure, task and cognition. Then, the test samples were made according to the design research, an interface layout evaluation test for the elderly was conducted. Next, based on the results of the interface layout evaluation test, entropy weight method was used to determine the relative weight of evaluation indexes of the evaluation system. Finally, the test results were transformed into grey relational degree through the grey relational analysis, and the best scheme was determined by comparing grey relational degree. In this study, ATMs of the bank were taken as a case study, the results proved the applicability of the proposed method. Through the evaluation model of information terminal interface layout based on the entropy weight method and the grey correlation analysis method, the user preferences of the elderly can be quantified. It can effectively evaluate the interface layout of information terminals for the elderly, and has certain guiding significance for interface layout optimization.