• Journal of Digital Convergence
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• v.10 no.9
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• pp.137-149
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• 2012

It has become a crucial issue for IT service firms how to form positive relationships with their customers in order to retain existing customers and potential customers. To address this issue, many researchers have introduced the concept of consumer relationship proneness(CRP). This present study examines if CRP is related to trust and commitment that enhance the intention to reuse. Using PLS, we analyzed 200 data collected through a survey of global electronic company members experienced IT outsourcing services. As a result, CRP has a defined impact on both trust and commitment, and relationships between trust and commitment, commitment and reuse intention have a positive effect. On the other hand, trust does not affect reuse intention. Based on these results, it presents a discussion for future research and the implications for CRP.

• Industry Promotion Research
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• v.7 no.2
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• pp.59-73
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• 2022

This paper aims to analyze efficiency of sustainable development of foreign trade in eastern China to reduce the input while maintaining the current output level. This paper adopts relevant input-output indicators of 11 provinces in eastern China from 2016 to 2020 and uses DEA to measure comprehensive efficiency, pure technical efficiency, and scale efficiency from the input perspective. Malmquist index was used to calculate MPI. As a result, from 2016 to 2020, the MPI of all provinces in eastern China was 1.035, higher than 1, and the net technology efficiency was 0.911, lower than 1. Overall, the average technological progress index increased 4.5% to 1.045. It can be seen that the sustainable development efficiency of foreign trade has an overall influence on comprehensive efficiency, net technology efficiency, and scale efficiency. The efficiency of sustainable development of foreign trade in eastern China is mainly limited by its scale. The improvement of MPI in the eastern Region mainly benefits from technological progress. For provinces affected by internal factors, it is suggested to strengthen internal coordination. For provinces affected by external factors, it is suggested to respond appropriately to external factors.

• The Journal of the Korea Contents Association
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• v.15 no.1
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• pp.399-417
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• 2015

The purpose of this research is to investigate the effects of brand extension on original brand in mobile market. TAM (Technology Acceptance Model) was used in current research to verify the 'intention to use of mobile service', and 'perceived usefulness', 'perceived ease of use', and the effect of 'extended brand's intention to use' on continuous 'intention to use in original brand' are verified in the process. According to the results, TAM was found to be appropriate to verify the intention to use of mobile service. Also by verifying the effect of decision factor, it is found that perceived ease of use have positive(+) influence on continuous intention to use of original brand. According th this finding, marketers will be able to understand better in performing strategies in mobile service environment.

• Journal of Digital Convergence
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• v.16 no.5
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• pp.239-245
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• 2018

So far, various researches have been conducted on evaluation of e-learning software, but subjective evaluation criteria are formed according to the classification presented from the viewpoint of the researcher rather than systematized form according to related standards. In addition, standards for software evaluation are continuously being supplemented for practical use, so it is urgent to establish evaluation bases by establishing evaluation criteria. Therefore, in order to establish the quality evaluation standard of e-learning software, this study analyzes the quality requirements of e-learning software based on the usability system among the quality characteristics of ISO/IEC 25000 series. This evaluation standard is distinguished by the fact that the evaluation standard of e-learning software that reflects the latest trend of related standardization has been established and practical utilization has been improved. It can be used effectively for quality evaluation and certification of e-learning software in the future.

• Journal of Korea Water Resources Association
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• v.39 no.1 s.162
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• pp.59-68
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• 2006

To assess the water resources sustainability, many indicators and methodologies have been suggested by international organizations and developed in other countries. However, in the previous studies, some of indicators were unsuitable for assessing the sustainability of water use and management in Korea. Thus, in this study nSl(Water Resources Sustainability Index), a multi-variable index, was created by consideration of environmental, social, and economical criteria. Relative weights for components, indicators and sub-indexes, were determined by employing the Analytic Hierarchy Process. In order to extract the indicators related with water resources sustainability, the data related with water resources and indicators suggested in various field were compared and thoroughly reviewed. These indicators were classified into four groups; Economic Efficiency Index, Social Equity Index, Environmental Conservation Index, and Maintenance Capability Index. The weight of each component were decided by the survey of 127 specialists in water resources and sustainability. The result of survey represented that efficiency and equity of water use and water quality for river restoration are major issues in enhancing the water resources sustainability In addition, it was found that investment and public participation should be considered for sustainable water use.

• The Korean Journal of Applied Statistics
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• v.27 no.2
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• pp.291-305
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• 2014

Persistence is one of the typical characteristics appearing in the volatility of financial time series. According to the recent researches, the volatility persistence may be due to either volatility shifts or long-range dependence. In this paper, we consider residual-based CUSUM tests to distinguish volatility persistence, long-range dependence and volatility shifts in GARCH models. It is observed that this test procedure achieve reasonable powers without a size distortion. Moreover, we employ AIC and BIC criteria to estimate the change points and the number of change points in volatility. We demonstrate the superiority of residual-based CUSUM tests on various Monte Carlo simulations and empirical data analysis.

• Journal of Dental Rehabilitation and Applied Science
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• v.33 no.1
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• pp.19-24
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• 2017

Recently, flexible denture is widely used with some advantages such as esthetics, flexibility and biocompatibility. However, there is an opposite opinion about stability because of the movement of denture by the material's flexibility. As the denture moves to tissue surface during mastication, it irritates the supporting tissue. It can lead to trauma and rapid resorption of residual ridges if this irritation lasts for a long time. In this case, the patient has used flexible denture with insufficient stability, retention and support for several years and thus continuous irritation of the supporting tissue resulted in palate bone exposure. The patient discomfort and palate bone exposure underwent improvements by the new denture with stability and retention. A careful case selection for flexible denture, regular checkup and proper treatment are necessary to prevent the side effects.

• Journal of Digital Convergence
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• v.16 no.3
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• pp.249-259
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• 2018

This research had intended to find out regarding the present influences of the Smart Work on the intention to use continuously with the staff members working in the small- and medium-sized enterprises as the subject. And, finally, it had intended to find out about the Smart Work environments of the IT corporations and the non-IT corporations. For this research, the questionnaire survey data were collected from the staff members working at the small- and medium-sized enterprises. Through the questionnaire survey data that were collected, an empirical analysis was carried out. And, through the reliability analysis, the feasibility analysis, the discriminatory feasibility analysis, and the inspection of the degree of suitableness of the structural equation model, finally, the research model was verified and, finally, a difference analysis of the IT corporations and the non-IT corporations was carried out. Regarding the results of the analysis of the research, it appeared that the factors of the job efficiency and the job autonomy of the special characteristics of the job had the positive influences on the usefulness and the job satisfaction, which were the parameters and which were perceived. And it appeared that the time flexibility of the job form could not have any influences on the usefulness and the job satisfaction, which were the parameters and which were perceived. And it appeared that the spatial flexibility had the influences on the job satisfaction only. The perceived usefulness, which was a parameter, had the positive influences on the job satisfaction and the intention to use continuously. And, finally, the job satisfaction had the positive influences on the intention to use continuously. And it appeared that there were the differences, too, between the IT corporations and the non-IT corporations. It is thought that, through the results of this research and through the Smart Work environment, the positive influences on the workers and the organizations could be induced and that a better working environment than previously can be provided to the workers to fit the special characteristics of the corporations.

• Information and Communications Magazine
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• v.27 no.12
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• pp.24-30
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• 2010

본 고에서는 스마트폰, 스마트TV를 비롯한 통신서비스의 컨버전스 양상과 여타 과학기술과 IT의 융합현상으로 인한 새로운 산업의 등장 등, 가속적인 ICT의 진화로 말미암아 점차로 불거지고 있는 망 중립성에 대한 논의와 관련하여, 진화하고 있는 ICT 환경에서 그 동안 정보통신서비스의 혁신적 발전을 견인해왔던 기존의 망 중립성에 대한 개념에 대한 새로운 시각들을 살펴보고, 향후 소비자들의 망 접근성을 보장할 수 있고, 정보통신서비스는 물론 산업 전반이 지속적으로 성장하기 위한 망 사용에 대한 새로운 원칙의 수립에 대한 고려사항에 대해 알아본다.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.11a
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• pp.143-145
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• 2013

국 내외적으로 무인우편장치를 도입하여 우편물 접수 편의성을 증대시키려는 노력이 지속되고 있다. 그러나 고객은 무인우편장치에서 화면터치 방식의 키보드를 사용하여 접수정보를 직접 입력하고 있으며 사용에 어려움을 느끼고 있다. 이로 인해 접수정보인 우편번호, 주소, 수취인명을 자동으로 획득하여 고객에게 제공하는 시스템 개발의 필요성이 제기되었다. 본 논문에서는 우편영상을 이용하여 접수정보를 자동으로 획득하고 고객에게 제공하여 접수 편의성을 증대시킬 수 있는 서버/클라이언트 기반의 분산형 접수정보 자동획득 시스템을 구현하고 무인우체국내의 무인 우편접수 장치에 적용하였다.