Fat Finger Worries: How Older and Younger Users Physically Interact with PDAs

Siek, Katie A.; Rogers, Yvonne; Connelly, Kay

doi:10.1007/11555261_24

Cited by 269 publications

(130 citation statements)

References 15 publications

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“…Because tablet computers normally have larger monitors than smart phones, operations of tablet computers may differ from those of smart phones. For example, fat finger problems [45] are more likely to occur on smart phones than tablet computers. Thus, repeating the experiment using smart phones may produce different results.…”

Section: Threats To Validitymentioning

confidence: 99%

Usability Evaluation Method of Applications for Mobile Computers Using Operation Histories

Shirogane

Matsuzawa

Iwata

et al. 2018

IEICE Trans. Inf. & Syst.

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SUMMARYVarious applications have been realized on mobile computers such as smart phones and tablet computers. Because mobile computers have smaller monitors than conventional computers, strategies to develop user interfaces differ from conventional computer applications. For example, contents in a window are reduced or divided into multiple windows on mobile computers. To realize usable applications in this situation, usability evaluations are important. Although various usability evaluation methods for mobile computers have been proposed, few evaluate applications and identify problems automatically. Herein we propose a systematic usability evaluation method. In our method, operation histories by users are recorded and analyzed to identify steps with usability problems. Our method automatically analyzes usability problems, allowing usability evaluations in software development to be implemented easily and economically. As a case study, the operation histories were recorded and analyzed when 20 subjects operated an application on a tablet computer. Our method automatically identified many usability problems, confirming its effectiveness.

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Section: Threats To Validitymentioning

confidence: 99%

Usability Evaluation Method of Applications for Mobile Computers Using Operation Histories

Shirogane

Matsuzawa

Iwata

et al. 2018

IEICE Trans. Inf. & Syst.

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“…Other studies indicate that touch interfaces and their use are much more natural to users than other input devices such as mouse, touchpad or trackball [38], [39], [40]. An added benefit of touch-screen devices is the easier maintenance in terms of cleanness and hygiene.…”

Section: Touch and Gesture Inputsmentioning

confidence: 99%

Mobile Computing is not Always Advantageous: Lessons Learned from a Real-World Case Study in a Hospital

Holzinger

Sommerauer

Spitzer

et al. 2014

Advanced Information Systems Engineering

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Abstract. The use of mobile computing is expanding dramatically in recent years and trends indicate that "the future is mobile". Nowadays, mobile computing plays an increasingly important role in the biomedical domain, and particularly in hospitals. The benefits of using mobile devices in hospitals are no longer disputed and many applications for medical care are already available. Many studies have proven that mobile technologies can bring various benefits for enhancing information management in the hospital. But is mobility a solution for every problem? In this paper, we will demonstrate that mobility is not always an advantage. On the basis of a field study at the pediatric surgery of a large University Hospital, we have learned within a two-year long mobile computing project, that mobile devices have indeed many disadvantages, particularly in stressful and hectic situations and we conclude that mobile computing is not always advantageous.

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“…Many touch devices capture a touch contact 'point' that is actually a relatively large 2-D region [27]. This is often converted into a single (x,y) pixel coordinate for compatibility with traditional pointing models that assume a single point of interaction.…”

Section: The "Fat Finger" Problemmentioning

confidence: 99%

“…The "fat finger problem" [27] makes selection of specific targets or placement of digital objects at precise locations or orientations difficult. Shortcomings in current sensing technology and the difficulty inherent in resolving touch contacts also contribute to the problem.…”

Section: Introductionmentioning

confidence: 99%

“Oh Snap” – Helping Users Align Digital Objects on Touch Interfaces

Fernquist

Shoemaker

Booth

2011

Lecture Notes in Computer Science

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Abstract. We introduce a new snapping technique, Oh Snap, designed specifically for users of direct touch interfaces. Oh Snap allows users to easily align digital objects with lines or other objects using 1-D or 2-D translation or rotation. Our technique addresses two major drawbacks of existing snapping techniques: they either cause objects to "jump" to snap locations, preventing placement very close to those locations, or they "expand" motor space so that on direct-touch interfaces objects lag behind the user's finger. Oh Snap addresses both of these problems using an asymmetric velocity profile similar to a technique for filtering degrees of freedom in multi-touch gestures that was introduced by Nacenta et al. (2009). Oh Snap applies the velocity profile to multiple "snapping" constraints. A user study revealed a 40% performance improvement over no snapping for 1-D translation, 2-D translation, and rotation tasks when snap lines or angles were targeted. We found that Oh Snap performs no worse than traditional snapping, while retaining its important functional benefits. The study also investigated optimal parameter settings and Oh Snap's accuracy in supporting the placement of objects near to, but not at, snap locations, which traditional snapping techniques do not support. Oh Snap was found to be competitive with non-snapping interfaces for these tasks.

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Fat Finger Worries: How Older and Younger Users Physically Interact with PDAs

Cited by 269 publications

References 15 publications

Usability Evaluation Method of Applications for Mobile Computers Using Operation Histories

Usability Evaluation Method of Applications for Mobile Computers Using Operation Histories

Mobile Computing is not Always Advantageous: Lessons Learned from a Real-World Case Study in a Hospital

“Oh Snap” – Helping Users Align Digital Objects on Touch Interfaces

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