Graduate Thesis Or Dissertation
 

Custom Keyboards for Inputting Programs on Touchscreen Devices

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/n296x388z

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  • Soft keyboards come in different shapes, sizes, and layouts. Each layout is designed to help the users in different inputting tasks. Most of these layouts, however, focus on general text entry as opposed to computer programs. This dissertation addresses the problems with current input mechanisms on touchscreen devices. The dissertation presents the design and evaluation of different custom keyboards for inputting programs on touchscreen devices. It shows the advantages of using the soft custom keyboards over the default input techniques. The contributions include (1) Syntax-Directed Keyboard Extension—a novel keyboard design for inputting Java source code efficiently and accurately; (2) Evolution and Evaluation of the Syntax-Directed Keyboard—a longitudinal evaluation of an enhanced design of the Syntax-Directed Keyboard using Java source code statistics; and (3) Evaluation of A Visual Programming Keyboard—a soft keyboard alternative to the drag-and-drop method to input block-based programs and its evaluation. These custom keyboards were evaluated with empirical user studies involving human participants.
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