一句话：提出自动检测 Web 应用中对话框相关键盘导航无障碍缺陷的方法，并在真实网页上验证有效性。
键盘导航对多种残障用户访问 Web 至关重要，但现代网站的对话框经常违反键盘可访问性指南，导致用户无法或难以完成导航与操作。论文针对这一问题提出一种自动检测方法，用于发现阻止或妨碍键盘用户导航网页对话框的无障碍缺陷。作者在真实世界对象上进行了广泛评估，结果表明该技术能够有效检测此类对话框相关的键盘导航故障。
The ability to navigate the Web via the keyboard interface is critical to people with various types of disabilities. However, modern websites often violate web accessibility guidelines for keyboard navigability with respect to web dialogs. In this paper, we present a novel approach for automatically detecting web accessibility bugs that prevent or hinder keyboard users' ability to navigate dialogs in web pages. An extensive evaluation of our technique on real-world subjects showed that our technique is effective in detecting these dialog-related keyboard navigation failures.