基于SHERPA和HEART的老年人车载信息系统界面设计研究

Interface Design of In-vehicle Information System for the Elderly Based on SHERPA and HEART

中文关键词: 交互设计  SHERPA  HEART  车载信息系统  老年人

英文关键词: interaction design  SHERPA  HEART  in-vehicle information system  the elderly

中文摘要:

      目的 改善老年驾驶员对车载信息系统界面的使用体验。方法 提出基于SHERPA(系统人为错误减少与预测方法)和HEART(人误评估与减少技术)的老年人车载信息系统界面设计研究方法。首先，成立焦点小组对评估界面进行SHERPA定性分析，绘制车载信息系统界面层次任务分析图，通过错误分类表定义错误类型;其次，运用HEART定量分析错误类型，设定差错诱发条件，确定各条件的影响评估比例，从而计算人误概率;最后，在此基础上，分析差错诱发条件，归纳差错发生原因，根据差错纠正措施进行设计改良，对改良界面进行结果验证。结论 该方法可以有效发现与老年人车载信息系统界面显著相关的差错诱发条件，既可帮助设计师找到交互设计改良的重点，也可减少老年驾驶员对车载信息系统界面的误操作情况。

英文摘要:

      The work aims to improve the user experience of in-vehicle information system interfaces for elderly drivers. An interface design method of in-vehicle information system for the elderly based on SHERPA (Systematic Human Error Reduction and Prediction Approach) and HEART (Human Error Assessment and Reduction Techniques) was proposed. Initially, a focus group was set up to conduct a SHERPA qualitative analysis of the evaluated products, draw a hierarchical task analysis chart and define error types through the error classification table. Then, HEART was used to quantitatively analyze the types of errors, set error producing conditions, determine the assessed proportion of effect of each condition, and calculate the human error probability. On this basis, the error producing conditions were analyzed and the causes of errors were summarized to improve the design based on error correction measures. Finally, the improved interface was validated. This research methodology can effectively identify error producing conditions significantly related to the in-vehicle information system interface by the elderly, which can help designers identify key areas for interaction design improvement and reduce the error operation of the in-vehicle information system interface by elderly drivers.