Posted by Chathumini Ishara on Wednesday, March 04, 2020 | No comments
Designing user interfaces for a system plays a major role in system design phase. Users of the system uses the user interface to interact with the system. In case of that, every single detail about the user interface should be considered carefully to deliver a great experience to the user. User interfaces with less complexity makes easier for user to learn the system. When developing a system for speaking impaired people, the user interface plays more important role in the system.
We have selected Pyqt5 as the design tools for designing the user interfaces. Because, PyQt5 is a GUI widgets toolkit. It is a Python interface for Qt, one of the most powerful, and popular cross-platform GUI library. PyQt5 is a blend of Python programming language and the Qt library.
In order to keep the user interface simple as possible, the system has only three buttons to select introduction, sign to text mode or speech to sign mode. In sign to text mode, there is a text area to display text that displays the meaning of performed sign gesture . Further, in it has tips for how to use the system. Also,the layout of speech to sign mode consists 3D avatar that displays sign gesture related to the speech and text area to display the speech using text.
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| Main User Interface |
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| Introduction |
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| Display an alert box whether camera can or can not access |
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| Sign to Text Mode |
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| Instructions for how to use Sign to Text mode |
Usability of the system
We have measured the usability of the system by getting feedback form both speaking impaired and ordinary users. the questionnaire and some of the feedback given by the users are shown in below.
Their feedback were the best path to correct our mistakes in the system. According to all of these feedback we have design a graph to measure the usability of the system interface. The figure is shown in below.
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