The Design Space of Nonvisual Word Completion
The Design Space of Nonvisual Word Completion
复制标题
非视觉填字的设计空间
DOI：
10.1145/3308561.3353786
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
J. Guerreiro
中科院分区：
文献类型：
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作者：
Hugo Nicolau;André Rodrigues;André L. M. Santos;Tiago Guerreiro;Kyle Montague;J. Guerreiro
文字补全界面在移动虚拟键盘中随处可见；然而，先前还没有关于如何为屏幕阅读器用户设计这些界面的研究。为了解决这个问题，我们提出了一个用于非视觉表示单词补全的设计空间。设计空间包括七个类别，旨在确定交互设计在一个未探索的研究主题中的挑战和机遇。它旨在指导新的交互技术的设计，为从事非视觉单词补全的研究人员和实践者提供一个框架。为了展示其潜力，我们邀请盲人用户探索设计空间，创建自己的定制单词补全解决方案。通过这项研究，我们发现用户创建的替代界面扩展了当前屏幕阅读器的功能。与主流解决方案相比，生成的接口在通知频率和基数上不那么保守。定制决策基于感知的收益/成本，并取决于多种因素，如用户感知的预测准确性、潜在的击键收益和情景限制。
Word completion interfaces are ubiquitously available in mobile virtual keyboards; however, there is no prior research on how to design these interfaces for screen reader users. In addressing this, we propose a design space for nonvisual representation of word completions. The design space covers seven categories aiming to identify challenges and opportunities for interaction design in an unexplored research topic. It is intended to guide the design of novel interaction techniques, serving as a framework for researchers and practitioners working on nonvisual word completion. To demonstrate its potential, we engaged blind users in an exploration of the design space, to create their own bespoke word completion solutions. Through this study we found that users create alternative interfaces that extended current screen readers' capabilities. Resulting interfaces are less conservative than mainstream solutions on notification frequency and cardinality. Customization decisions were based on perceived benefits/costs and varied depending on multiple factors such as users' perceived prediction accuracy, potential keystroke gains, and situational restrictions.