目的 引入 KJ 法的概念，对网约打车类 APP 的交互设计进行分析，力求获得更好的用户体验。 方法 阐述了 KJ 法在交互设计研究中的步骤，即主题确定、情报搜集、纸片制作、编组分类、方案确定，以优步 APP 中一次完整行程的交互体验为例，基于 KJ 法对其视觉界面、交互流程、技术功能 3 个层次进行分析。结论 得出了该软件目前存在的 UI 设计不规范、交互逻辑混乱、功能繁多、说明文字表达不清、交互表意不明等问题，并对其进行了针对性的改良设计。

It introduces the concept of the KJ method, and analyzes the interactive design of the taxi about APP to obtain the better user experience. It expounds the steps of KJ method in the research of interactive design, that is, theme determination, information collection, paper making, marshalling and classification, and determining scheme. Taking the interactive experience of one complete stroke in the APP as an example, the 3 levels of visual interface, interaction flow and technical function are analyzed based on the method of KJ.The existing problems of UI design, such as non-standard design, confusion of interactive logic, various functions, unclear expression of text and unknown interactive ideographic, are also given.