지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.6
- 수록면
- 251 - 263 (13page)
- DOI
- 10.5143/JESK.2022.41.3.251
이용수
초록· 키워드
오류제보하기
Objective: The main purpose of this research is to study the physical button shape of the flip-type foldable phone, which can provide optimal usability and operational satisfaction during a one-handed gripping.
Background: Foldable phones which with larger screens and two different states (Unfolded, Folded) brings difficulties due to poor operability and grip comfort. Furthermore, the physical button of the smartphone has not yet been properly researched to guarantee optimal performance. Therefore, there is a need to ergonomically determine the shape and layout of the physical button that can manipulate the device stably and effectively that is mainly used with one hand.
Method: In this paper, two usability experiments were designed and conducted. In the prior experiment, 8 button length combinations of 2 buttons (9~17, 9~20.5, 9~24, 13~17, 13~20.5, 13~24, 17~20.5, 17~24mm) and 3 combinations of protrusion of 2 buttons (PYVY: both power and volume buttons are protruded, PYVN: power button is protruded while volume button is not, PNVY: power button is not protruded, and volume button is). So, a total of 24 combinations were tested. The dependent variables were evaluated by collecting the operability preference (7-point scale) as a subjective index, and the error rate as an objective index. In the main experiment, 6 physical button layouts were provided, and the optimal layout was obtained in two states by collecting and evaluating the user"s operability preference.
Results: As a result of the study, the power button was preferred in the order of 13mm and 9mm, and the length of the volume button was the most preferred in the order of 20.5mm. Users prefer that both power and volume buttons are protruded or just the volume button is protruded, but if both are present, the two buttons must not be of similar length. In addition, it was confirmed that PRU-VLU was the most preferred layout.
Conclusion: In this study, meaningful results were derived through experiments on button length, protrusion or no protrusion, and layout that enables users of flip-type foldable phones to tactilely recognize buttons in two states and to operate them easily, and the influence of the hand size on the layout was confirmed.
Application: Based on the results of the optimal physical button shape level and layout for one-handed gripping postures derived through this study, it can be used as a reference index when designing the physical button for a foldable phone in the future.
Background: Foldable phones which with larger screens and two different states (Unfolded, Folded) brings difficulties due to poor operability and grip comfort. Furthermore, the physical button of the smartphone has not yet been properly researched to guarantee optimal performance. Therefore, there is a need to ergonomically determine the shape and layout of the physical button that can manipulate the device stably and effectively that is mainly used with one hand.
Method: In this paper, two usability experiments were designed and conducted. In the prior experiment, 8 button length combinations of 2 buttons (9~17, 9~20.5, 9~24, 13~17, 13~20.5, 13~24, 17~20.5, 17~24mm) and 3 combinations of protrusion of 2 buttons (PYVY: both power and volume buttons are protruded, PYVN: power button is protruded while volume button is not, PNVY: power button is not protruded, and volume button is). So, a total of 24 combinations were tested. The dependent variables were evaluated by collecting the operability preference (7-point scale) as a subjective index, and the error rate as an objective index. In the main experiment, 6 physical button layouts were provided, and the optimal layout was obtained in two states by collecting and evaluating the user"s operability preference.
Results: As a result of the study, the power button was preferred in the order of 13mm and 9mm, and the length of the volume button was the most preferred in the order of 20.5mm. Users prefer that both power and volume buttons are protruded or just the volume button is protruded, but if both are present, the two buttons must not be of similar length. In addition, it was confirmed that PRU-VLU was the most preferred layout.
Conclusion: In this study, meaningful results were derived through experiments on button length, protrusion or no protrusion, and layout that enables users of flip-type foldable phones to tactilely recognize buttons in two states and to operate them easily, and the influence of the hand size on the layout was confirmed.
Application: Based on the results of the optimal physical button shape level and layout for one-handed gripping postures derived through this study, it can be used as a reference index when designing the physical button for a foldable phone in the future.
목차
1. Introduction
2. Pilot Usability Test
3. Main Usability Test
4. Discussion
5. Conclusion
References
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