TY - GEN
T1 - Understanding the touchscreen-based nonvisual target acquisition task performance of screen reader users
AU - Joh, Hwayeon
AU - Lee, Yun Jung
AU - Oh, Uran
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIT) (No. NRF2021R1F1A105278611).
Publisher Copyright:
© 2022 ACM.
PY - 2022/4/25
Y1 - 2022/4/25
N2 - Understanding the users' performance for finding and selecting a target is important for designing an efficient user interface. However, little has been studied about the performance of screen reader users whose primary sense is audio. To better support touchscreen-based interaction for screen reader users, we conducted a user study on a smartphone with 12 participants with visual impairments where they were asked to perform a series of target acquisition tasks on a smartphone with screen reader on varying the screen size and the screen-Target ratio. As a result, we found that the participants were faster at finding targets with shorter traces when the screen size is smaller with larger target size in general. However, we also found that the ratio of the target size concerning the screen size affects task efficiency. In addition, we examined traces of touch events and identified five screen exploration strategies: zigzag, border-first, pigtail, hybrid, and other. Based on the findings, we suggest implications for designing an efficient touchscreen-based user interface for screen reader users.
AB - Understanding the users' performance for finding and selecting a target is important for designing an efficient user interface. However, little has been studied about the performance of screen reader users whose primary sense is audio. To better support touchscreen-based interaction for screen reader users, we conducted a user study on a smartphone with 12 participants with visual impairments where they were asked to perform a series of target acquisition tasks on a smartphone with screen reader on varying the screen size and the screen-Target ratio. As a result, we found that the participants were faster at finding targets with shorter traces when the screen size is smaller with larger target size in general. However, we also found that the ratio of the target size concerning the screen size affects task efficiency. In addition, we examined traces of touch events and identified five screen exploration strategies: zigzag, border-first, pigtail, hybrid, and other. Based on the findings, we suggest implications for designing an efficient touchscreen-based user interface for screen reader users.
KW - blindness
KW - screen reader
KW - target acquisition task
KW - touchscreen
KW - visual impairments
UR - http://www.scopus.com/inward/record.url?scp=85130286656&partnerID=8YFLogxK
U2 - 10.1145/3493612.3520454
DO - 10.1145/3493612.3520454
M3 - Conference contribution
AN - SCOPUS:85130286656
T3 - Proceedings of the 19th International Web for All Conference, W4A 2022
BT - Proceedings of the 19th International Web for All Conference, W4A 2022
PB - Association for Computing Machinery, Inc
T2 - 19th International Web for All Conference, W4A 2022
Y2 - 25 April 2022 through 26 April 2022
ER -