BIBLIOS

Document type
Conference papers

Document subtype
Full paper

Title
Hybrid-Brailler

Participants in the publication
Daniel Trindade (Author)
André Rodrigues (Author)
LASIGE
Tiago Guerreiro (Author)
Dep. Informática
LASIGE
Hugo Nicolau (Author)

Summary
Braille input enables fast nonvisual entry speeds on mobile touchscreen devices. Yet, the lack of tactile cues commonly results in typing errors, which are hard to correct. We propose Hybrid-Brailler, an input solution that combines physical and gestural interaction to provide fast and accurate Braille input. We use the back of the device for physical chorded input while freeing the touchscreen for gestural interaction. Gestures are used in editing operations, such as caret movement, text selection, and clipboard control, enhancing the overall text entry experience. We conducted two user studies to assess both input and editing performance. Results show that Hybrid-Brailler supports fast entry rates as its virtual counterpart, while significantly increasing input accuracy. Regarding editing performance, when compared with the mainstream technique, Hybrid-Brailler shows performance benefits of 21% in speed and increased editing accuracy. We finish with lessons learned for designing future nonvisual input and editing techniques.


Event
Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems - CHI '18

Publication Identifiers
ISBN - 9781450356206

Address
Montreal QC, Canada

Publisher
ACM Press

Document Identifiers
DOI - https://doi.org/10.1145/3173574.3173601
URL - http://dx.doi.org/10.1145/3173574.3173601

Rankings
CORE A* (2018) -
Google Metrics (2019) - 86