Barrier pointing: using physical edges to assist target acquisition on mobile device touch screens
Barrier pointing: using physical edges to assist target acquisition on mobile device touch screens
复制标题
障碍指向：使用物理边缘辅助移动设备触摸屏上的目标获取
DOI：
10.1145/1296843.1296849
复制
发表时间：
2007
期刊：
影响因子：
3.3
通讯作者：
Shaun K. Kane
中科院分区：
文献类型：
--
作者：
Jon E. Froehlich;J. Wobbrock;Shaun K. Kane
移动电话和个人数字助理(PDA)是非常流行的普及技术。这些设备中的许多都包含触摸屏，这可能会给由于小目标和依赖敲击获取目标而导致运动障碍的用户带来问题。为了选择目标，用户必须在屏幕上点击，这一动作需要飞向目标并提起而不打滑的精确运动。在本文中，我们提出了一种新的目标捕获技术，称为障碍物指向，该技术利用屏幕周围凸起的物理边缘来提高指向精度。在设计了一系列障碍指向技术后，我们对9名身体健全的使用者和9名有运动障碍的使用者进行了初步研究，以找出使障碍指向成功的参数。根据这些数据，我们深入分析了两位运动障碍使用者的表现，指出障碍物对他们特别有益。我们展示了通过允许触控笔按压屏幕及其物理边缘来提供物理稳定性的重要性。我们提供了其他设计见解和经验教训，可以为未来利用移动设备的物理属性来提高可访问性的尝试提供参考。
Mobile phones and personal digital assistants (PDAs) are incredibly popular pervasive technologies. Many of these devices contain touch screens, which can present problems for users with motor impairments due to small targets and their reliance on tapping for target acquisition. In order to select a target, users must tap on the screen, an action which requires the precise motion of flying into a target and lifting without slipping. In this paper, we propose a new technique for target acquisition called barrier pointing, which leverages the elevated physical edges surrounding the screen to improve pointing accuracy. After designing a series of barrier pointing techniques, we conducted an initial study with 9 able bodied users and 9 users with motor impairments in order to discover the parameters that make barrier pointing successful. From this data, we offer an in-depth analysis of the performance of two motor impaired users for whom barrier pointing was especially beneficial. We show the importance of providing physical stability by allowing the stylus to press against the screen and its physical edge. We offer other design insights and lessons learned that can inform future attempts at leveraging the physical properties of mobile devices to improve accessibility.