How People with Low Vision Access Computing Devices: Understanding Challenges and Opportunities
How People with Low Vision Access Computing Devices: Understanding Challenges and Opportunities
复制标题
弱视人士如何使用计算设备：了解挑战和机遇
DOI：
10.1145/2982142.2982168
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Shiri Azenkot
中科院分区：
文献类型：
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作者：
S. Szpiro;Shafeka Hashash;Yuhang Zhao;Shiri Azenkot
低视力是一种普遍的条件，即使有纠正镜，人们也很难看到。有低视力的人经常使用主流计算设备，但是他们如何使用自己的设备访问信息以及数字低视力可访问性工具是否提供足够的支持仍在研究。我们通过上下文查询研究解决了这些问题。在执行简单任务（例如阅读电子邮件）时，我们使用智能手机，平板电脑和计算机观察了11位低视力参与者。我们发现，参与者比在听觉上（例如屏幕读取器）更喜欢视觉访问信息，并使用各种可访问性工具来访问信息。但是，可访问性工具没有为它们提供适当的支持。此外，参与者必须不断执行多种手势才能舒适地查看内容。这些挑战使参与者效率低下 - 他们很慢，经常犯错。即使是精通技术的参与者也感到沮丧，而没有控制。我们的发现揭示了低视力人的独特需求，这些需求与没有远见和设计机会的人不同，可以改善低视力可访问性工具。
Low vision is a pervasive condition in which people have difficulty seeing even with corrective lenses. People with low vision frequently use mainstream computing devices, however how they use their devices to access information and whether digital low vision accessibility tools provide adequate support remains understudied. We addressed these questions with a contextual inquiry study. We observed 11 low vision participants using their smartphones, tablets, and computers when performing simple tasks such as reading email. We found that participants preferred accessing information visually than aurally (e.g., screen readers), and juggled a variety of accessibility tools. However, accessibility tools did not provide them with appropriate support. Moreover, participants had to constantly perform multiple gestures in order to see content comfortably. These challenges made participants inefficient-they were slow and often made mistakes; even tech savvy participants felt frustrated and not in control. Our findings reveal the unique needs of low vision people, which differ from those of people with no vision and design opportunities for improving low vision accessibility tools.