Extended Human Computer Interaction (HCI) Model for People with Visual Impairment in Education System; A Case of HVP Gatagara, Rwanda

Human Computer Interaction (HCI) is the study of how people interact with computers. Researchers in the field of HCI both observe the ways in which humans interact with computers and design technologies that let humans interact with computers in novel ways. The main problem investigated in this study was that present computers and systems are not very convenient for visually impaired people. There was no translator for blind people translating in their local language, no recording options, poor speech synthesizer as well as screen reader. The general purpose of this study was to design an enhanced Human Computer Interaction (HCI) model for people with visual impairment for better access to education system in Rwanda through screen reading. The study investigated the effects of screen readers, speech synthetizers, sound captures, and refreshable keyboards on an enhanced human computer interaction (hci) model for people with visual impairment in education system. The study found out that screen readers yielded a FL= 0.02 in the extended HCI model for V. I, speech synthetizers yielded FL= 0.06, sound captures yielded FL= -0.03, and refreshable keyboards yielded FL= -0.01, and have a significant effect on visually impaired end-users. The study has confirmed that the model, after testing Goodness-of-fit Index, was on overall the best in terms of model fit. This study has proposed and recommended using this extended human computer interaction model for people with visual impairment in Rwanda in order to effectively serve the Rwandan citizens with visual impairment problem towards their satisfaction.