Understanding finger postures when touching targets on the touchscreen of mobile devices1

Umami, Mahrus Khoirul; Arezes, Pedro; Sampaio, Álvaro M.

doi:10.15446/dyna.v83n197.57587

Cited by 3 publications

(4 citation statements)

References 4 publications

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“…Fitts Law proved to be a strong predictor of pointer performance under various conditions [48]. The application of Fitts Law on the application mockup can be seen in the size of the large touch area on the menu and information on land conditions, which are in accordance with the recommendations of Google's Android UI Guidelines, namely a minimum of 48 square pixels [49]. In addition, icons or images with a little text are also used to speed up information processing by users [50].…”

Section: Prototypingmentioning

confidence: 62%

User Experience Design on Visualization of Mobile-Based Land Monitoring System Using a User-Centered Design Approach

Setiyawati

Purnomo

Mailoa

2022

Int. J. Interact. Mob. Technol.

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The use of information and communication technology could increase the quantity and quality of agricultural production, including horticulture. This study focuses on the development of a mobile-based interface that makes it easier for farmers to view the data obtained from the results of land monitoring. In designing mobile devices, applications, and user interfaces, it is important to consider the user experience. This paper focuses on UX design which is which is based on User-Centered Design approach that focuses on user needs and prioritizes empathy for users, so as to accommodate the identification of user needs and produce high fidelity pro-totypes. Based on the System Usability Scale and the User Experience Questionnaire testing on the prototype, it was found that the level of acceptance of horticultural farmers was positive with the level of the value of all UX elements above the average

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Section: Prototypingmentioning

confidence: 62%

User Experience Design on Visualization of Mobile-Based Land Monitoring System Using a User-Centered Design Approach

Setiyawati

Purnomo

Mailoa

2022

Int. J. Interact. Mob. Technol.

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“…There has been a wealth of research to improve user experience and accessibility of application interfaces through user interaction remapping [13,59,66]. For example, Sugilite [39] is a programmingby-demonstration system that enables users to map a set of UI interaction workflows into a single command.…”

Section: Input Manipulation and Interaction Remappingmentioning

confidence: 99%

InteractOut: Leveraging Interaction Proxies as Input Manipulation Strategies for Reducing Smartphone Overuse

Lu,

Zheng,

Zhang

et al. 2024

Proceedings of the CHI Conference on Human Factors in Computing Systems

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Smartphone overuse poses risks to people's physical and mental health. However, current intervention techniques mainly focus on explicitly changing screen content (i.e., output) and often fail to persistently reduce smartphone overuse due to being over-restrictive or over-flexible. We present the design and implementation of In-teractOut, a suite of implicit input manipulation techniques that leverage interaction proxies to weakly inhibit the natural execution of common user gestures on mobile devices. We present a design space for input manipulations and demonstrate 8 Android implementations of input interventions. We first conducted a pilot lab study (N=30) to evaluate the usability of these interventions. Based on the results, we then performed a 5-week within-subject field experiment (N=42) to evaluate InteractOut in real-world scenarios. Compared to the traditional and common timed lockout technique, InteractOut significantly reduced the usage time by an additional 15.6% and opening frequency by 16.5% on participant-selected target apps. InteractOut also achieved a 25.3% higher user acceptance rate, and resulted in less frustration and better user experience according to participants' subjective feedback. InteractOut demonstrates a new direction for smartphone overuse intervention and serves as a strong complementary set of techniques with existing methods. CCS CONCEPTS• Human-centered computing → Interaction techniques; Gestural input; Empirical studies in HCI.

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“…It is also possible to see that the thumb posture is depend on the position of touching target. Furthermore, a different thumb posture would show a different fingertip contact area size and shape [8].…”

Section: Introductionmentioning

confidence: 99%

“…A bigger size of mobile phone may be nice in visual aspect, but it is possible to be a problem since the users commonly use it in single-hand posture, especially for users with small hand size. People with a large hand size tend to have larger thumb reach than people with a small hand size [8]. Considering this phenomenon, this study was aimed to identify the thumb reach of Indonesian young adult when interacting with their mobile phone in single hand posture.…”

Section: Introductionmentioning

confidence: 99%

Thumb Reach of Indonesian Young Adult When Interacting with Touchscreen of Single-Handed Device: A Preliminary Study

Umami

2018

J. Phys.: Conf. Ser.

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Abstract. This study is a preliminary survey on thumb reach of Indonesian population when interacting with single-handed device. This study was aimed to know the thumb reach envelope on the screen of mobile phone. The correlation between the thumb reach vs. the hand length and thumb length was also identified. Thirty young adults participated in the study. All participants had normal body stature and were right-handed person. In the observational phase, the participant was asked to colour the canvas area on the screen of the mobile phone by using his/her thumb. The participant had to complete the task by applying the single hand interaction. The participant should grab the mobile phone as he/she use it normally in his/ her daily activities. The thumb reach envelope of participants was identified from the coloured area of the canvas. The results of this study found that participants with a large hand length and thumb length tend to have a large thumb reach. The results of this study also show the thumb reach area of the participants is forming an elliptical shape that runs from the northeast to southwest on the device screen.

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Understanding finger postures when touching targets on the touchscreen of mobile devices1

Cited by 3 publications

References 4 publications

User Experience Design on Visualization of Mobile-Based Land Monitoring System Using a User-Centered Design Approach

User Experience Design on Visualization of Mobile-Based Land Monitoring System Using a User-Centered Design Approach

InteractOut: Leveraging Interaction Proxies as Input Manipulation Strategies for Reducing Smartphone Overuse

Thumb Reach of Indonesian Young Adult When Interacting with Touchscreen of Single-Handed Device: A Preliminary Study

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