• Journal of Information Technology Services
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• v.16 no.4
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• pp.121-136
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• 2017

Recently, many people are interesting for Start-up and government also try to support their business because it can contribute economic growth. However, in Korea, despite there are many education and supporting programs for them, many Start-ups are failed to retain their business because they actually do not know what they do. Although prior studies for Start-up have pointed that education for them is very important for success, education programs for them only focus on theories rather than practices. Moreover, Start-ups need tools for supporting to business plans or information for their business. Therefore, in this study, we propose IT service functions for Start-up information system supporting Start-up competency. For this purpose, we conduct Delphi and Importance-Performance Analysis with experts on start-up. In experiments, we divided stage of business into three stages; business planning, implementation, growth and diversification. And we draw important tasks from experts in each stage. As a result, we find some tasks to concentrate for Start-up information systems. And we also find tasks which are not important for company founders. Through these results, we expect that the development of functions for supporting those important tasks will help increase the efficiency of Start-up companies and the survival rate of them.

• Journal of Environmental Science International
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• v.20 no.6
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• pp.721-728
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• 2011

This study investigates the users' perception of the importance and performance of National Recreation Forest Service Programs quality, forest environmental education and cultural benefits, with the aim of improving the level of service quality within the programs. An Important-Performance Analysis (IPA) was performed to determine significant patterns. The IPA results showed that most users' perceived as important how well the service programs performed to meet their expectations. The enclosed study finds, for example, users' answered that three factors which were less important to them were entrance fee, size of program center or facilities and amount of information. These factors performed poorly, and the program of guidance indicates the need for improvement of these factors. In addition, the finding also suggests how recreational service programs in the future can complement and improve what they offer. These are as follows. The process of preparation and content of the program order need to be effectively established. The Program Director needs to maintain a friendly attitude and must have ongoing training on how to provide effective programs. For programs to be enjoyable and satisfying for users, the location of the programs should provide a comfortable environment. Also, detailed program guidance is required for users' convenience. It is expected that the results of this study will be useful when ameliorating and establishing the marketing strategy of the National Recreation Forest Service Programs.

• Journal of Information Technology Applications and Management
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• v.31 no.1
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• pp.11-25
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• 2024

The purpose of this study is to investigate the improvement of prediction performance and changes in variable importance in SEM-ANN two-stage analysis. 366 cosmetics repurchase-related survey data were analyzed and the results were presented. The results of this study are summarized as follows. First, in SEM-ANN two-stage analysis, SEM and ANN models were trained with train data and predicted with test data, respectively, and the R² was showed. As a result, the prediction performance was doubled from SEM 0.3364 to ANN 0.6836. Looking at this degree of R² improvement as the effect size f² of Cohen (1988), it corresponds to a very large effect at 110%. Second, as a result of comparing changes in normalized variable importance through SEM-ANN two-stage analysis, variables with high importance in SEM were also found to have high importance in ANN, but variables with little or no importance in SEM became important in ANN. This study is meaningful in that it increased the validity of the comparison by using the same learning and evaluation method in the SEM-ANN two-stage analysis. This study is meaningful in that it compared the degree of improvement in prediction performance and the change in variable importance through SEM-ANN two-stage analysis.

• Journal of the Korea Safety Management & Science
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• v.14 no.4
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• pp.247-258
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• 2012

It seems most important for a manufacturing company to be well aware of its relationship with suppliers. This is why it is essential to analyze and control the structural relationship among CEO's characteristics, relations between suppliers and manufacturers and new product development performances affected by such relations. The present study may be summed up as follows: First, from the analysis of characteristics of manufacturing company's CEO and relations between suppliers and manufacturers, it could be verified that CEO's characteristics exercised influence upon sharing of product development process and upon cooperation for technical manpower, but not upon sharing of core technologies, signifying the fact that nothing could be more important than the role of CEO who has strong will to improve his or her relations with suppliers; and Second, from the analysis of relations between suppliers and manufacturers as well as relations between management and new product development performances, it became evident that both management performance and product development performance were affected by sharing of product development process. It was also known that cooperation for technical development process had influence upon the product development performance but not upon the management performance. Furthermore, the analysis showed that both management performance as well as product development performance were affected by sharing of core technologies.

• Journal of Information Technology Services
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• v.13 no.4
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• pp.155-168
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• 2014

This paper discussed about business ethics and innovation management performance of IT service firms in Korea. To prove empirically the research hypothesis, the statistical analysis was based on the response from the 92 IT Service firms in Korean. As analysis results, it was found that the business ethics of organizations were the effect factors of the innovation management performance. And the knowledge competency and creativity are confirmed as a mediator between the business ethics and innovation management performance. So this paper suggests that business ethics in organizations are the important factor for enhancement of IT service firm's innovation performance. Specially the mediation effects of knowledge competency and creativity variables were proved empirically for the relation between the business ethics and innovation management performance. So it is desirable that knowledge-based service firms, for example IT service firms, have to strive to upgrade their level of business ethics and to link with their creativity and knowledge competency.

• Journal of Information Technology Services
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• v.12 no.3
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• pp.95-109
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• 2013

This paper discussed about creativity and knowledge management variables as for effect factors on the management performance of IT service firms. Specially the mediation effects of knowledge management variables between the creativity and management performance were examined. To prove empirically the related hypothesis, the statistical analysis were based on the response from the 160 Korean IT Service firms. As an analysis results, it was found that the creativity of organizations was not the direct effector on the management performance. But the virtue of knowledge which are accumulated from knowledge management activity and shared in organizations was the direct effector. Also, the knowledge management activity is mediator on the in the relationship between the creativity and management performance. So this paper suggests that knowledge management activity and knowledge's virtue in the related the creativity in organizations are the important mediate factors for enhancement of IT service firm's performance.

• Journal of Advanced Marine Engineering and Technology
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• v.32 no.5
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• pp.698-706
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• 2008

Performance improvement of Small hydro turbine is a very important subject to solve in the stage of introduction and development of the turbine. Cross-flow hydro turbine should be also studied more in detail for the turbine performance in order to extend the sites of application. In order to improve the turbine performance, the effect of the turbine shape on the turbine performance should be examined. Therefore, the effect of runner blade number on the turbine performance is investigated by use of a commercial CFD code. The results show that runner blade number gives remarkable effect on the efficiency and output power of the turbine. Pressure on the surface of the runner blade changes considerably by the blade number at Stage 1, but relatively small change of velocity distribution occurs in the flow passage.

• Journal of the Korean School Mathematics Society
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• v.3 no.2
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• pp.133-154
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• 2000

The purpose of this study is to analyze theoretically suggested performance test and find out the actual conditions is math class at high schools and to suggest some devices for improvement for the various problems. To achieve this goal of study, I applied a performance test to the first graders of high school for one semester, and analyzed various phenomena which appeared during its practice. I made several questionnaire based on the materials of an academic seminar, "Several questions and devices for the improvement on mathematics performance test" And through the analysis, I pointed several problems of the performance test and proposed alternative plans. Several practical alternatives can be suggested for the problems appeared in the operation of performance test. The most important thing than any other technical solution in teachers′ diverse endeavor and enthusiastic research attitude to overcome the difficulties. Teachers′ spontaneousness is the foundation to enhance their own specialty and eradicate the propriety of the performance test.

• International Journal of Advanced Culture Technology
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• v.10 no.2
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• pp.106-115
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• 2022

This study is to investigate factors that influence job performance of hair salon workers such as self-leadership, empowerment, and self-efficacy. Data were collected by distributing 450 questionnaires to hair salon workers in the S. Excluding the questionnaires with insufficient responses, 433 copies were used for analysis with SPSS 26.0 for Windows. The survey was conducted from March 21 to 27, 2022. As a result of the analysis, first, the self-leadership of hair salon workers was found to have an effect on job performance. Second, the empowerment of hair salon workers was also found to have an effect on job performance. Third, the self-efficacy of hair salon workers was found to have an important effect on job performance. This study is expected to contribute to the development of hair salon workers by identifying ways to maximize job performance and increasing customer satisfaction.

• Journal of the Korea Fashion and Costume Design Association
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• v.9 no.3
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• pp.115-132
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• 2007

The purpose of this research is that to study of musical performer's purchasing behavior, satisfaction and design preference, and to give the information for better performance costume market based on that result. The target for the survey is limited only for above 4th grade female students and have experienced more than three times of performances. Total 364 questionnaires are used for this research. The SPSS was used for the analysis. The results were, first, in the survey of place of purchasing, specialty shop for musical performance shop was the most. The most group for the budget that they spent was under 100,000 Won. Rational price for costume would be 150,000-300,000 Won. Most people purchase costume before 2 weeks and compare 3-4 stores mostly. There were not many complaints about being comfort for costume itself. The preference for costume was different depends on not only scale of performance but also whether solo, duet or trio or more. Also harmony with other person costume was most consideration factor when they perform duet or more. For the choice of shop factor following were considered the most important; various selections, kindness of sales persons and possibility for trying various costumes. However, locations of shop or delivery service were not important relatively. For the choice of costume factor, design color, comfort and functionality were considered the most important but price, quality and decoration were not. For 'the satisfaction after purchase costume' factor, people's opinions, best appearance on the stage and meeting image with themselves were considered the most important. Second, on the subject for 'design preference of costume based on type of performance', people chose different color of dress depends on what types of performance. In case of solo, they prefer vivid primary color; in case of trio or more, they prefer black; in case of duet, they prefer pastel tone. As for preference of sleeve design, all of them prefer non-sleeve type.