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URN etd-0831108-235250 Statistics This thesis had been viewed 3377 times. Download 657 times. Author Shu-Chen Hsu 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 146 Title The Effect of Interface Mode on Users Performance in a Digital Photo Frame Keyword Task load Subjective feelings Digital Photo Frame Interface Task operating time Task operating time Interface Digital Photo Frame Subjective feelings Task load Abstract Digital cameras and camera cell phones are getting more and more popular and the images are stored and displayed in digital formats. Therefore, digital photo frames (DPF) are replacing traditional photo frames. In order to fulfill users’ requirements, all manufacturers not only make continuous efforts to improve the functionality of DPF but also put much emphasis on the research and development of user interface designs. In the beginning of this study, the researcher came up with research questions of the software and hardware interfaces of DPF based on existing products and survey of users’ requirements. Then three digital photo frames were selected from the marketplace for experiment, where Thinking Aloud method was applied to find out the inefficiencies of the user interfaces. Then the researcher concluded the key points that need attention when DPF interfaces are being designed. The key points were applied in the experiments on the simulated interfaces. This study applied two independent variables: “Function Display Mode” and “Selection Mode”. It used “Two-way ANOVA” to analyze the impacts of the two independent variables on task operating time, subjective feelings for different user interfaces and task load. The findings are as follows:
(1)The findings of “Task Operating Time” are:
a.Touch Screen was faster than Physical Buttons.
b.Based on the results of task 2 (Rotating A Photo) and task 4 (Deleting A Photo), Shortcut Key was faster than Menu-based Interaction.
(2)The findings of “System Usability Scale” (SUS) show that subjects obviously had a higher preference for Touch Screen and positive subjective feelings toward all four tested user interfaces.
(3)The findings of the NASA-Task Load Index (NASA-TLX) show that the task load of Touch Screen was obviously lower than that of Physical Buttons except for temporal demand, which showed no big difference. In addition, subjects had no other task load from using any of the four tested interfaces except for physical demand from using Physical Buttons.
Advisor Committee Hong-Chang Liu - advisor
Chien-Hsiung Chen - co-chair
Li-Chieh Chen - co-chair
Files Date of Defense 2008-07-24 Date of Submission 2008-09-02