- Title
- Designing a proxemic natural user interface to support information sharing among co-located mobile devices
- Creator
- Lee Son, Timothy
- Subject
- User interfaces (Computer systems) Mobile computing
- Date Issued
- 2016
- Date
- 2016
- Type
- Thesis
- Type
- Masters
- Type
- MCom
- Identifier
- http://hdl.handle.net/10948/12845
- Identifier
- vital:27126
- Description
- Existing information sharing methods used by mobile devices require the user to repeat a series of steps to share one or more selected files with another individual, where the entire process is repeated for sharing the same file(s) with multiple individuals. Due to constant advancements in mobile computing, mobile devices are able to provide new, more intuitive, and easier solutions to sharing information. Natural User Interfaces (NUIs) primarily focus on the reuse of existing knowledge (from other applications or activities) or human abilities (such as touch, speech, and gestures) to provide a more accurate and usable solution to existing human computer interaction (HCI) systems. The interaction techniques of NUIs have transformed these human abilities. The main research objective was to design a proxemic NUI to provide an accurate and usable solution to support information sharing among co-located mobile devices. The development of MotionShare supported multiple devices to share information simultaneously using NUI interaction techniques. An initial calibration setup allowed MotionShare to calculate the approximate positions and orientations of every device in the environment. Novel NUI interaction techniques were implemented because of the known positions of these devices. MotionShare was evaluated using two evaluation techniques, namely analytical and experimental. The results showed device positioning to have a mean precision, trueness, and recall of 72.21%, 91.39%, and 71.63% respectively. The results showed MotionShare gestures to have a recall of 90.50% and 100.00% for the point gesture and the touch gesture respectively. The experimental technique consisted of a pilot study (formative evaluation) and a usability evaluation (summative evaluation). The results of the usability evaluation showed high user satisfaction and statistical analysis, which revealed MotionShare to achieve the main research objective. These results also showed that participants preferred the touch gesture to the point gesture, but expressed both gestures can be utilised for the tasks of MotionShare.
- Format
- xvi, 243 leaves
- Format
- Publisher
- Nelson Mandela Metropolitan University
- Publisher
- Faculty of Science
- Language
- English
- Rights
- Nelson Mandela Metropolitan University
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