Department of Psychology, Tsinghua University, Beijing, PR China.
School of Transportation Engineering, Tongji University, Shanghai, PR China.
Appl Ergon. 2023 Nov;113:104013. doi: 10.1016/j.apergo.2023.104013. Epub 2023 Jul 7.
The curved design is ubiquitous, with a vast user base due to its similarity with in shape to human physiological structure. The curved QWERTY keyboard layout was proposed for one-handed usage on smartphones with ambiguous effects. This study evaluated whether the curved QWERTY could optimize the user experience and input performance on large smartphones better than the traditional straight QWERTY layout. Eight measurements were used to evaluate the usability of each design, six suggesting curved QWERTY failed to achieve outstanding typing performance or subjective user experience, while the other two indicators showed that curved QWERTY had advantages in touch dispersion and touching offset, indicating the possible higher usability it could reach. The results also investigated the potential application of curved designs and provided insights into the optimization methods.
弯曲设计无处不在，因其与人体生理结构相似而拥有庞大的用户基础。弯曲的 QWERTY 键盘布局是为单手在智能手机上使用而提出的，但效果并不明显。本研究评估了弯曲 QWERTY 是否能比传统的直 QWERTY 布局更好地优化大型智能手机上的用户体验和输入性能。八项测量用于评估每种设计的可用性，其中六项表明弯曲 QWERTY 未能实现出色的打字性能或主观用户体验，而另外两项指标则表明弯曲 QWERTY 在触摸分散和触摸偏移方面具有优势，这表明它可能具有更高的可用性。研究结果还探讨了弯曲设计的潜在应用，并为优化方法提供了思路。
