• Journal of the Korea Society of Computer and Information
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• v.12 no.5
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• pp.191-202
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• 2007

The purpose of this study is to examine the effect of Web site usability on trust, satisfaction, and repurchase intention in Internet shopping malls. The Web site usability construct consists of the factors such as contents, ease of use, navigation, and interactivity. In order to accomplish the purpose of this study, a research model was established and it suggests that the Web site usability, through the mediation of trust and satisfaction, eventually affect the repurchase intention of online customers in Internet shopping malls. The results of the study show that Web site usability has statistically significant effect on the repurchase intention of online customers and this effect is mediated by satisfaction. This research confirms the importance of usability construct in designing Web sites and understanding the use of Web sites. Implications of these findings are discussed for researchers and practitioners.

• The Journal of Information Systems
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• v.19 no.1
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• pp.35-61
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• 2010

The Internet marketing of hospital is being considered as a strategic requirement that can satisfy the customers. Therefore, it is very important to understand the effects of the medical information on the Internet on the actual consumers. In this study, the paths through which the attitude and satisfaction of the medical information consumers that visit hospital web site are formed for the medical information through the quality of the medical information on the Internet and usability of hospital web site were examined respectively according to the medical examination and treatment subjects that respectively deal with medical acts and cosmetic acts through light metabolism recovery. The usability of hospital web site, rather than medical information quality, had positive effects on the attitudes toward the medical information distributed in the corresponding web site and the satisfaction of use of hospital web site in the case of visitors of the hospital web site for the medical examination and treatment subjects of essential medical examination and treatment and emergency medical treatment, and, on the other hand, the result of analyzing the path of the medical examination and treatment subjects of cosmetics and functional improvement revealed that the medical information quality had positive effects on the medical information attitudes and the usage satisfaction of hospital web site. Accordingly, the attitudes toward the medical information distributed through the web site by the visitors of hospital web site is formed from the quality of medical information and web site usability, and, ultimately, they become generally satisfied with the hospital web site. Such process is revealed different1y according to the medical examination and treatment subjects for which consumers desire to obtain information.

• The Journal of Information Systems
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• v.14 no.1
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• pp.87-105
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• 2005

The purpose of this study id to examine the effect of Web site usability on the revisiting intention of customers in Internet book stores. The Web site usability construct consists of the factors such as contents, design, navigation, and interactivity. In order to accomplish the purpose of this study, a research model was established and it suggests that the usabililty effect the revisiting intention of online customers in Internet book stores. The results of the study show that contents, navigation, and interactivity has statistically significant effect on revisiting intention of Internet customers and this effect is mediated by perceived ease of use and perceived usefulness. This research confirms the importance of usability construct in designing web sites and understanding the use of web sites. Implications of these findings are discussed for researchers and practitioners.

• Journal of Information Technology Applications and Management
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• v.12 no.2
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• pp.145-161
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• 2005

In this paper, we present an experiment conducted to examine how the web site's architecture, content quantity and the user task complexity affect its usability. The experiment was performed in two phases on college students to visit existing web sites which are readily accessible via the Internet. The results of experiment show that the web site's architecture significantly affects the efficiency and the effectiveness interactively with its content quantity and the user task's complexity. On the other hand, none of the above three factors show significant effects on the satisfaction and the learnability. In particular, the web site's content quantity does not have any statistically significant effects on the satisfaction and the learnability. It implies that the factors affecting the satisfaction and the learnability are different from those affecting the efficiency and the effectiveness. The analysis reassures that it is essential to consider the context of use in designing a web site.

• The Journal of Information Systems
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• v.18 no.3
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• pp.111-134
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• 2009

Today many owners of Web sites are looking to user's satisfaction survey as a key means of measuring the usability of a Web site. While it is preferred for it simplicity and ease of use, this survey method is not without potential risks. This paper focuses on showing that the existing practice of questionnaire-based usability measurement is subject to human recall errors, and that such flaws can be reduced when the questionnaire survey is followed by the users hands-on experience of the site. An empirical study was conducted, and the results indicate that the above speculation holds true. Even if respondents felt highly confident about their responses on a recall survey, a hands-on experience with a focal Web site increased the extent to which the respondents were satisfied with the shopping mall site. This indicates that a user's perception of the quality of a Web site may be distorted or lost as time goes by. In addition, the findings have shown that the use of the verbal protocol analysis method can reveal critical information that can help track the root causes of Web site usability problems, thereby helping to develop site enhancement strategies. The paper concludes with directions for future research.

• The Journal of the Korea Contents Association
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• v.1 no.1
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• pp.68-73
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• 2001

The interaction between web site and it's user is more active and free than that of any other interface environment. Consequently, it is very important that user interface environment must be fully considered in web site development process. In this study, first, web interface environment and it's features are examined, then web usability test techniques are analyzed, and on the basis of the results, new tool for visualizing various responses and patterns of web site user is developed. Finally, by applying newly developed tool to usability test process of an internal hub site and analyzing the results, effective methods for visualization and evaluation of using patterns of web site are suggested.

• Journal of the Korea Society of Computer and Information
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• v.11 no.5 s.43
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• pp.139-148
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• 2006

This study is intended to propose quality criteria and Web metrics for usability quality evaluation of multimedia Web sites. Recently, applications of the Web sites are not limited to the area of industry and operating as it integrates the new technology. Also as information super highway becomes common with development or network technology, multimedia Web site is on the rise due to various use of multimedia attributes. Therefore this study expands to apply HTML based Web site quality evaluation studied in Software engineering, HCI, Hypermedia to multimedia Web site, and suggests new metrics by integrating flash usability which is expanding its portion in multimedia Web site lately. The Web metrics proposed in this study are verified by heuristic evaluation from a group of expert. It analyses the results of quantitative and qualitative qualify evaluation on Web Award Korea by comparing the award-winning, high-quality Web site with non-winning Web sites. This study can be used to establish guideline for high-quality multimedia Web site development in the future.

• The Journal of Information Systems
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• v.16 no.2
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• pp.51-68
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• 2007

The previous studies regarding the usability evaluation of e-government web sites focused only on deriving affecting factors and variables. They did not find the relationship of usability, user satisfaction and revisiting. The objective of this paper is to find the causal effect how the usability of e-government web sites affect to the user satisfaction and the revisiting attitude. no scope of e-government web sites included the portal site and ie liked web sites. We developed a structural equation model and performed a user test. As a result, a perceived usability affected the revisiting, but it did not intermediate the user satisfaction.

• Journal of Agricultural Extension & Community Development
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• v.22 no.1
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• pp.93-100
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• 2015

This article describes the process involved in usability testing a agricultural information Web site. In addition to determining the goals and requirements for the agricultural information Web site, a user and task analysis was conducted for defining the its user base and the types of tasks which users might be performing at the site. Usability testing methods with close observation and in-depth interviews provided fresh insights about how users are interacting with the agricultural information Web interface as they approach various information seeking tasks. This study uncovered problems related to unclear terminology, improper interface, location for navigational links, need for context sensitive help, built-in redundancy, and clear and consistent navigation.

• Journal of the Ergonomics Society of Korea
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• v.18 no.3
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• pp.87-103
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• 1999

The present study employed an experimental usability testing technique to explore cognitive engineering characteristics of WWW. Based on the results of our previous study which employed non-experimental methods such as questionnaire and heuristic evaluation method, this study used a behavioral performance-measurement technique to evaluate the usability of a domestic web-site design. Specifically, we revised the menu and document structure of the original 'Movie-Friend' site to solve the design problems which were extracted from the results of the heuristic evaluation method of our previous study. Exp. 1 compared the relative navigation efficiency of the original frame menu site and the revised pop-up toolbar site, and Exp. 2 compared the toolbar menu site and the revised frame site. As a result of Exp. 1, the revised pop-up toolbar site showed improved navigation efficiency compared to the original site, as indicated by the mean latency and the number of pathways to reach the target page. However, we found no performance difference between the frame site and toolbar site in Exp. 2.