| Summary: | 碩士 === 國立臺灣科技大學 === 設計研究所 === 101 === With the rapid progress of advanced technology, the marketing growth of mobile phones and the prosperity of the Internet have led the trend. Because of the change in software systems, everyone can use applications open to public on mobile phones. Also, the market of applications has also developed rapidly. People are dependent on Social Networking Service Interaction. Therefore, it is foreseeable that people’s behavior of holding the mobile devices with LBS mobile software will become increasingly common. This study intends to investigate the interface usability of LBS mobile software. It is hoped that the user interface design of current LBS mobile software can be improved and the users’ satisfaction will be enhanced.
The experiment in this study includes two stages:（1）The pilot test: The purpose is to investigate the current LBS mobile software user interface. An experiment was conducted to help understand potential interaction problems of the current LBS mobile software. The tools include user’s task performance, QUIS questionnaire, SUS questionnaire, and interview so that we can understand users’ requirements and interaction problems.（2）The validate experiment: Based on the results generated from the first stage together with the summaries from the relevant literatures, validate experiment was conducted.
The experiment was planned based on a 3 (photo information representation styles) by 2 (menu function styles) two-way ANOVA design. A total of 60 participants were invited to conduct tasks in the experiment. This study also researched to conduct the interface design research by operating the current LBS application and the interaction senses. There are three levels in the independent variable of photo information representation styles:（a）photo information is presented as a whole of single column: a complete photo showed vertically in a single column with fixed width set to 576 pixels)（b）photo information is partially presented of single column: a complete photo showed vertically in a single column with fixed width and length set to 576 pixels by 304 pixels)（c）photo information is presented as a whole of double columns. There are two levels in the independent variable of menu function styles: a complete photo showed vertically in a single column with fixed width set to 270 pixels) （a）show function bars: browsing with fixed top and down bars.（b）hide function bars: slide upwards to hide bars and downwards to show bars while browsing. Based on the experiment, the results regarding user task performance, questionnaire for user interface satisfaction （QUIS）,system usability scale（SUS）, and users’ experiences can be obtained.
The generated results indicated that:（1）Some interactive styles in LBS mobile software are inconsistent with what has been known by the public, and should be operated consistently with their previous experiences.（2）The repetition rate in the function interface is so high in LBS mobile software that the testers are vulnerable to lose instructions.（3）The use of “hide function bars” together with ” photo information is presented as a whole of double columns” style can help acquire best task performance. The users generally thought that （4）The Highest user interface satisfaction（QUIS）accords to the users’ experience with “show and hide function bars” style.（5）“Hide function bars” obtains more values than “show function bars ”on SUS questionnaire. The users also thought that the former design can help to enhance usability scale.（6）By using “hide function bars” together with “photo information is partially presented of single column” style, the users felt the lowest mental demand of user interface. Therefore, according to the experimental results, the factors of photo information presenting styles and menu function styles indeed have significant influences on LBS mobile software.
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