Prof. William Tucker

Permanent URI for this collection

https://hdl.handle.net/10566/1723

Prof. William Tucker

Position: Associate Professor Department: Computer Science Faculty: Faculty of Natural Science Qualifications: BA (Trinity University, USA), MS (Arizona State University, USA), PhD (UCT) Research publications in this repository ORICD iD 0000-0001-8636-7281 More about me: here, here and here Tel: 021 959 2516 Fax: 021 959 1274 Email: btucker@uwc.ac.za

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Browsing by Subject "Assistive technologies for persons with disabilities"

Now showing 1 - 2 of 2
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    Improving usability and correctness of a mobile tool to help a Deaf person with pharmaceutical instruction
    (ACM, 2013) Motlhabi, Michael B.; Tucker, William David; Parker, Mariam B.; Glaser, Meryl
    The computing for development community knows how to build user interfaces using qualitative methods for text il- literate users, especially on mobile devices. However, lit- tle work has been done speci cally targeting Deaf users in developing regions who cannot access voice or text. This paper describes a multi-disciplinary collaboration towards iterative development of a mobile communication tool to support a Deaf person in understanding usage directions for medication dispensed at a pharmacy. We are improv- ing usability and correctness of the user interface. The tool translates medicine instruction given in English text to Sign Language videos, which are relayed to a Deaf user on a mo- bile phone. Communication between pharmacists and Deaf patients were studied to extract relevant exchanges between the two users. We incorporated the common elements of these dialogues to represent content in a veri able manner to ensure that the mobile tool relays the correct informa- tion to the Deaf user. Instructions are made available for a Deaf patient in signed language videos on a mobile device. A pharmacy setup was created to conduct trials of the tool with groups of end users, in order to collect usability data with recorded participant observation, questionnaires and focus group discussions. Subsequently, pre-recorded sign language videos, stored on a phone's memory card, were tested for correctness. Results of these two activities are presented and discussed in this paper.
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    Information protection in video relay services
    (ACM, 2013) Henney, Andre J.; Tucker, William David
    This work in progress paper reports on initial research into the protection of information of the individuals that make use of video relay services. Our research team has developed an application called SignSupport, to aid in the communication between a text illiterate Deaf person and a non-signing pharmacist. After a Deaf person hands SignSupport to the pharmacist, s/he can view the prescription in South African Sign Language. SignSupport keeps personal and medical information on the phone that needs to be protected. This project focuses on the provision and security of voice and video over Internet Protocol transmission for video/voice relay integrated into SignSupport. Areas of research include: authentication methods, sign language video encryption techniques, and secure and protected data transit for an IP-based relay system. We also intend to implement and evaluate these security measures within the context of the South African Protection of Private Information Bill. Action research methodology will apply to this project, with consultation from inter-disciplinary groups such as the Deaf Community of Cape Town, legal experts, network and information security experts as well as application developers, for input and direction of this research.