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URN etd-0916108-104240 Statistics This thesis had been viewed 3004 times. Download 2447 times. Author Ta-hsin Chan Author's Email Address No Public. Department Industrial Design Year 2007 Semester 2 Degree Master Type of Document Master's Thesis Language Chinese&English Page Count 162 Title The Research of the E-reading Machine Based on the Traditional Reading Habit of the Elder Keyword Interface Design eBooks Senior Citizens Senior Citizens eBooks Interface Design Abstract There are now a wide variety of eBooks on the market. Nevertheless, senior citizens tend to feel less affinity for these devices and find them a very different experience from their conventional reading habits. In this study, in-depth interviews and questionnaire surveys were used to identify the actual functions that senior citizens require from eBooks. This was then integrated with their conventional reading habits to design the software and hardware interface. The goal is to help older people establish a sound mental model for the use of eBooks and reduce the level of frustration during use. An experiment was conducted during the study using three sets of push button user interfaces, users with and without computer experience and four types of task complexity. The time and number of button presses required to perform the tasks were recorded and the NASA-TLX rating scale used after each test to determine their workload. The results showed that in terms of task execution time, those with computer experience performed better than those with no computer experience; for task complexity, the best rating was for "Low" difficulty, followed by "Medium", "High (Forward)" then "High (Reverse)"; there was no significant difference between a stylus or one-handed user-interface but both were preferred over a two-handed user interface. When it came to the task error rate performance: there was no significant difference between those with computer experience and those with no computer experience; for task complexity, there was no significant difference between "High (Forward)", "Medium" and "High (Reverse)". These were all superior to the performance for "Low" complexity; there was no significant difference in the task error rates for the one-handed or stylus user interfaces, and both performed better than the two-handed user interface. The NASA-TLX rating scale showed that in terms of mental load, physical load, temporal load, effort, performance and frustration level, the rankings for all 6 indicators were significantly better for those with computer experience than those with no computer experience; the stylus interface performed better than the one-handed user interface and this was in turn better than the two-handed user interface. These differences all met the test for significance as well. Correlation analysis indicated that the only correlation was between task execution time and task error rate performance, with no correlation between other combinations. This study will hopefully provide a useful reference for the design of eBooks interfaces suitable for older people in the future.
Keywords: Senior Citizens, eBooks, Interface Design
Advisor Committee Chih-fu Wu - advisor
Files Date of Defense 2008-07-10 Date of Submission 2008-09-16