| Summary: | 碩士 === 國立交通大學 === 傳播所 === 90 === The purpose of this study is to find out whether the users’ performance would vary with the sorts of navigation support tools in the hypermedia system on handheld devices. The performance factors discussed here include the performance time, the steps, the satisfaction, and the lost degree. The subjects are 36 novices at PDA with more than 2-year experience of using computers, aged from 20-30, studying at colleges or graduate schools. The subjects are randomly dispatched to four groups that are equipped with different navigation support tools, including “non-navigation support tools,” “main menu,” “history,” and “main menu & history.” The sequence of operating is considered. Nine participants of each group are divided into three subgroups. Each subgroup has particular sequence to put the experiment into practice. And the design of the experiment follows the device of Double Latin Square.
The main assumption of the study is that navigation support tools have significant influence on the performance of users in the aspects of performance time, the steps, the satisfaction, and the lost degree. The results are concluded as follows. To see as a whole, the performance of the group without navigation support tools is inferior to those of all the other groups. On the other hand, among the other three groups of “main menu,” “history” and “main menu & history,” there is no remarkable difference at the aspects of the performance time, the steps, and the satisfaction. Meanwhile, as far as “the lost degree” is concerned, there is no obvious difference observed between the group with “main menu ” and the group with “main menu & history,” and the both groups perform better than the group of “history.” Investigating every individual task in the aspects of “the performance time” and “the steps”, the outcomes are coincident to the results of a whole. Nevertheless, there are diverse outcomes. The performances in small scale searching browsing are about the same for all groups. However, in large scale searching browsing, the group of “main menu ” and the group of “main menu & history” perform worse than the group of “history.” And the group without any navigation support tool performs worst.
To sum up, providing either “history” or “main menu” as a navigation support tool would be a great help to the performance of users while they are browsing, and users usually perform even better with “main menu” rather than with “history” on handheld devices.
|
|---|
