Effects of Operational Methods on Characteristics of Pointing when using Portable Terminal with Touch-Sensitive Screen
Effects of Operational Methods on Characteristics of Pointing when using Portable Terminal with Touch-Sensitive Screen
复制标题
使用触摸屏便携式终端时操作方法对指向特性的影响
DOI：
10.3951/biomechanisms.22.119
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
H. Fujimoto
中科院分区：
文献类型：
--
作者：
T. Nishimura;K. Doi;H. Fujimoto
用作显示器和输入设备的触摸敏感屏幕已经被采用在诸如智能电话和个人媒体播放器的许多便携式终端中，并且该市场已经大大扩展。触摸屏的一个特点是其图形用户界面（GUI）可以任意设计。然而，已经指出，如果设计者不熟悉人的操作特性，则GUI可能难以使用。这是因为对人的操作特性的了解不足。因此，在这项研究中，我们的目的是评估使用便携式终端与触摸屏时的指向特性，我们进行了一项实验，以获得知识，可用于设计易于使用的GUI。在这个实验中，我们通过测量指向位置和指向时间的分布来评估指向特性。参与实验的受试者被要求在三种操作条件下操作具有触摸屏的便携式终端。结果表明，在所有操作条件下，指向位置分布依赖于目标显示区域。我们还发现，在单手操作过程中，拇指可以到达而无需伸展或弯曲的区域，指向时间更好。此外，我们描述了一种有效的方法来设计一个椭圆形的触摸敏感区域的基础上，在这个实验中确定的指向位置分布。我们还评估了这种新设计方法的有效性。
Touch-sensitive screens that serve as displays and input devices have been adopted in many portable terminals such as smartphones and personal media players, and this market has expanded greatly. A feature of touch-sensitive screens is that their graphical user interface (GUI) can be designed arbitrarily. However, it has been pointed out that GUIs may be difficult to use if the designer is unfa - miliar with human operational characteristics. This is because there is insufficient knowledge about the operational characteristics of humans. Therefore, in this study, we aimed to evaluate the characteristics of pointing when using portable terminals with touch-sensitive screens, and we conducted an experiment to obtain knowledge that can be used in the design of easy-to-use GUIs. In this experiment, we evaluated the characteristics of pointing by measuring the distributions of the pointing positions and pointing time. The subjects who participated in the experiment were asked to operate a portable terminal with a touch-sensitive screen under three operational conditions. The results showed that the pointing position distribution depended on the target display area in all operational conditions. We also found that the pointing time was better in the areas that the thumb could reach without extension or flexing during one-handed operations. Furthermore, we describe an effective approach for designing an ellip-soid touch-sensitive area based on the pointing position distribution determined in this experiment. We also evaluated the effectiveness of this new design approach.