• Asia pacific journal of information systems
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• v.12 no.1
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• pp.45-65
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• 2002

Factors influencing the success or failure of information systems(IS) have been discussed in many literature. However, limited theoretical development or empirical research have examined the effectiveness of hospital information systems(HIS). This study set out the research model of influencing factors and the performance of HIS through theoretical studies based on Management Information Systems, and then empirically tested hypotheses related to the model. The model was tested using LISREL analysis on the sample of 274 respondents who have worked with the HIS. The major results of this study are as follows: First, system characteristics and organizational characteristics have a statistically significant influence on user satisfaction. Second, the hypothesis 3, proposing that computer self-efficacy would relate positively to user satisfaction, was not supported by the results, though. According to these results, system quality, information quality, service quality and support of top management are very important variables for IS success. The study's findings also indicate DeLone and McLean's model is correct in proposing that the indirect relationship between influencing factors and organizational effectiveness, mediated by user satisfaction, is an important one.

• Proceedings of the CALSEC Conference
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• 2005.03a
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• pp.299-304
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• 2005

This paper is a research on the dynamic signature verification of error rate which are false rejection rate and false acceptance rate, the size of signature verification engine, the size of the characteristic vectors of a signature, the ability to distinguish similar signatures, and so on. We suggest feature extraction and comparison method of the signature verification. Also, we have implemented our system with Java technology for more efficient user interfaces and various OS Platforms.

• Journal of Information Technology Applications and Management
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• v.11 no.3
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• pp.89-116
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• 2004

Insurance companies are in a fierce race to catch a new customer. In this situation. sales force automation technologies are often used to support customer relationship management strategies. This study sets out a research model predicting SFA(Sales Force Automation) usage through theoretical studies. Survey data were collected from 145 salespeople across 2 firms that had implemented sales force automation tools and hypotheses were tested empirically. Data were analyzed by path-analysis method of AMOS. The major findings of this study are as follows: Computer self-efficacy, user involvement and voluntariness have a statistically significant influence on the positive perceptions of SFA. These perceptions have a statistically significant influence on user satisfaction and usage of SFA. while user satisfaction has a statistically significant influence on SFA usage. This paper concludes with the discussion of these results and their implications for academic researchers and insurance company managers.

• Journal of Educational Research in Mathematics
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• v.9 no.1
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• pp.111-119
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• 1999

This paper discusses jLogic, a mathematical logic education software developed by the author. jLogic is basically a MS-Windows based software that can construct first-order models, formulas and thet their satisfiablity. Logical formulas are easily input by a "keyboard" maintained by jLogic. A special finite model, called the "Toy World" can be visually cinstructed and modified. The user is supposed to answer the following 3 questions about the selected logical expression: 1. Is it a grammatically correct logical formula? 2. Is it a sentence that has a definite truth value? 3. Is th sentence true or false? When the user inputs his answer in the "Inspector window" and then presses the OK button, jLogic instantly tests the validity of the answer and tells the user the result. jLogic is freely downloaded from http://gauss.kyungpook.ac.kr/~jlogic/

• Journal of Information Technology Applications and Management
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• v.16 no.1
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• pp.115-135
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• 2009

As one of core technologies in ubiquitous era, interest and application of RFID is increasing. Although its' applications has been developed in various areas, actual application rate is still underestimated. Previous studies show that most of researches are focused on RFID implementation strategies, emphasizing technical advantages and benefits of RFID. To increase RFID adoption rate, however, end user's attitude about information technology has to be considered. The empirical study has been conducted to analyze user's influential factors which affect the RFID adoption. The results show that some of user's attitude about IT are valid and provide useful guide lines about RFID adoption.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2004.11a
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• pp.165-166
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• 2004

Apartment, which have become the major housing style in Korea, have contributed to the development of housing culture as well as achieved a growth in volume. However, the demands and characteristics of residents have not been reflected in the apartment, because it has been developed only for a growth in volume. In this society, housing unit was the first consideration rather than common space. Therefore, a required resident-centered common space is the domestic housing market's necessity. Under this circumstance, this study investigated previous studies on interior design guidelines for common space were analyzed using Murtha and Lee's user benefit criteria which emphasizes humanity. In-depth content analysis was employed in this study. The result showed that four categories of the model were related toward more user-centered residential environment-behavioral facilitation, physiological maintenance, perceptual maintenance, and social facilitation.

• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.1095-1098
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• 2009

Stereoscopic (3D) content must be viewable in a variety of visual environments, from 3D theaters to 3D mobile displays. However, the depth sensations provided by 3D media are affected by the viewing conditions, such as screen size, viewing distance, and other factors. This user experience (UX) aspect makes it difficult to create multi-purpose 3D content. This paper describes two study cases in which the authors have focused on the UX and the multi-purposing of 3D content. The first case is an evaluation of 3D image quality on a mobile display. The second case is a trial development of a scalable 3D conversion process.

• Journal of the Korean Institute of Intelligent Systems
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• v.13 no.5
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• pp.558-563
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• 2003

Recently, many people are interested in the intelligent system that connects human and computers. And the studies on the intelligent agent system that can manage computer user s diverse requirements are now being accelerated. En this paper, we study the modeling of intelligent avatar system that can provide the user more convenient and user-friendly environments by adopting intelligent avatar agent, and it can be applied to various fields. Modeling of intelligent avatar agent is accomplished and part of it is experimentally implemented, and it showed successful results in the field of avatar agent, mail check functions, and scheduler.

• Proceedings of the KSR Conference
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• 2005.11a
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• pp.928-934
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• 2005

In this paper, we propose the ergonomic design method in shape design applicable for Advanced Urban Transit System. Human's sensitivity and User Interface of rolling stock investigated ergonomic studies of several type. The sensibility engineering design made approach of user center design in rolling stocks design. Therefore, we have application to properly of ergonomic design element in rolling stock design. we expert visual design and user interface help greatly in excellent rolling stock design.

• Journal of Korea Multimedia Society
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• v.24 no.12
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• pp.1693-1707
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• 2021

The purpose of this study was to improve the experience of visiting obstetrics and gynecology of single women. After analyzing previous studies on Korean single women's perception of visiting obstetrics and gynecology, Contextual Interviews and Cultural Probes were conducted on single women in their 20s who visited obstetrics and gynecology. Based on this, personas were constructed to solidify the direction of problem solving by identifying the behavioral patterns and characteristics of single women. In this study, factors that hinder unmarried women's visits to obstetrics and gynecology and improvement measures were derived based on the information obtained using service design tools such as User Journey Mapping and Stakeholders' Map. Afterwards, a preference survey was conducted to increase the persuasiveness of the proposed method. The follow-up research task is to produce and propose the derived solution as a prototype that can be used in the actual field, and then proceed with user evaluation.