Empirical study on improvement of usability -for touch-panel for elderly - comparison of usability between touch-panel and mouse

Iwase, Hirokazu; Murata, Atsuo

doi:10.1109/icsmc.2002.1167982

Cited by 20 publications

(9 citation statements)

References 10 publications

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“…When considering the clicking activity of touch devices, the wider spread of contact points results in a higher risk of having users miss the target. Iwase and Murata's [10] experiments also support the conclusion that touch interfaces present a higher rate of errors than mouse pointing interactions. A common explanation for the inaccuracy of touch devices relates to the fat finger problem [18].…”

Section: Related Workmentioning

confidence: 55%

The Link-Offset-Scale Mechanism for Improving the Usability of Touch Screen Displays on the Web

Watanabe

Fortes

Pimentel

2011

Human-Computer Interaction – INTERACT 2011

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Touch-screen interfaces have become a widespread-input-device tendency for computer systems. In this context, many studies investigate how to improve general usability for touch-screen devices. These studies consider different interaction design features that improve the usability for touch sensitive surfaces, considering the low accuracy it presents, given obstacles such as the "fat finger problem", low-perception of pointing mechanisms, difficulties in the selection of small objects, among others. This work aims at presenting the link-offset-scale touch interaction mechanism for improving the usability for touch-screen devices. The link-offset-scale mechanism makes use of web-application-structure meta-data (identifying links) to provide feedback information about the selection of links in touch interfaces, while the surface is touched by the user. The link-offset-scale mechanism's primary goal is to reduce the number of errors that users commit while interacting with touchscreen devices in the Web.

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Section: Related Workmentioning

confidence: 55%

The Link-Offset-Scale Mechanism for Improving the Usability of Touch Screen Displays on the Web

Watanabe

Fortes

Pimentel

2011

Human-Computer Interaction – INTERACT 2011

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“…In accordance with MacKenzie and Buxton [7] the results showed that movement time was lowest for start and target objects that were arranged on a horizontal line (0°, 180°). Iwase and Murata [6,8] examined movement times using either a computer mouse or a touch panel. They conducted a pointing task with circular target objects for the same motion angles as Whisenand and Emurian used (Į=0°, 45°, 90°, 135°, 180°, 225°, 270°, 315°).…”

Section: The Angle In Bivariate Pointing Tasksmentioning

confidence: 99%

Bivariate pointing movements on large touch screens: Investigating the validity of a refined Fitts’ Law

Bützler

Vetter

Jochems

et al. 2012

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On the basis of three empirical studies Fitts' Law was refined for bivariate pointing tasks on large touch screens. In the first study different target width parameters were investigated. The second study considered the effect of the motion angle. Based on the results of the two studies a refined model for movement time in human-computer interaction was formulated. A third study, which is described here in detail, concerns the validation of the refined model. For the validation study 20 subjects had to execute a bivariate pointing task on a large touch screen. In the experimental task 250 rectangular target objects were displayed at a randomly chosen position on the screen covering a broad range of ID values (ID= [1.01; 4.88]). Compared to existing refinements of Fitts' Law, the new model shows highest predictive validity. A promising field of application of the model is the ergonomic design and evaluation of project management software. By using the refined model, software designers can calculate a priori the appropriate angular position and the size of buttons, menus or icons.

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“…However, this product, such as the PDA [1], may have a problem with its power consumption. There has already been much research into reducing power consumption for LCDs, PCs and chip design [2] [3].…”

Section: Introductionmentioning

confidence: 99%

Using Serial Resistors to Reduce the Power Consumption of Resistive Touch Panels

Bai

Chen

2007

2007 IEEE International Symposium on Consumer Electronics

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In this paper we analyze the characteristics of the resistive touch panel to find a simple way to reduce power consumption. A touch panel's current consumption is less than 1µA while waiting, with the different of kinds of touch panels there is a 50mA to 100mA difference in the current consumption while operating. This difference has a great effect on the operation time of consumer electronic products. In this paper we propose a method according to Ohm's law of adding in serial resistors to reduce current consumption. As the serial resistors inserted are higher, the current consumption becomes lower, and the analog sensed voltage becomes lower, too. However, a small sensed voltage may produce the wrong output signal based on the resolution of the A/D conversion, and then the touch panel may show an unstable phenomenon. Through experiments we have found which values for the serial resistor both save power consumption and still maintain the similar operation sensitivity of the resistive touch panel.

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Empirical study on improvement of usability -for touch-panel for elderly - comparison of usability between touch-panel and mouse

Cited by 20 publications

References 10 publications

The Link-Offset-Scale Mechanism for Improving the Usability of Touch Screen Displays on the Web

The Link-Offset-Scale Mechanism for Improving the Usability of Touch Screen Displays on the Web

Bivariate pointing movements on large touch screens: Investigating the validity of a refined Fitts’ Law

Using Serial Resistors to Reduce the Power Consumption of Resistive Touch Panels

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