• Asia pacific journal of information systems
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• v.13 no.2
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• pp.119-143
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• 2003

Trust has been identified as a key component in many e-Commerce studies. The purpose of this study is to find out which factors play a major role in building trust and how the built-up trust affect consumer's purchase intention in Internet used-car transactions. Based on the information asymmetry, TAM(Technology Acceptance Model), and the trust theory, our research model includes factors such as a buyer's propensity-to-trust, institutional characteristics(inspection and warranty policy), word-of-mouth referral, perceived size, and perceived benefits as independent variables. The model also includes trust as a mediate variable, intention to purchase as a dependent variable and perceived quality risk as a moderate variable. The research model is tested by analyzing 787 sample data gathered from Internet used-car transaction sites. The result shows that the trust has significant effects on the online purchase intention, and institutional characteristics has been identified as the most significant factor for the trust of Internet used-car sites. The independent factors influencing trust vary depending on the level of perceived quality risk. For users who perceive the quality risk low, the perceived benefits explain a little portion of the purchase intention. However, those who perceive quality risk high would purchase used-cars only when they have trust on the Internet sites, indicating that trust play an important role as a mediate variable. This study suggests that enhancing the trust in Internet used-car sites is important to increase online transactions.

• Asia pacific journal of information systems
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• v.15 no.2
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• pp.1-21
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• 2005

This study is an empirical study about the effects of perceived risks and perceived benefits on purchase intention in mobile commerce. Perceived risks and perceived benefits are proposed as mediators that make a significant impact on purchase intention in mobile commerce. Also, this study compared the direct effect of perceived risks, perceived benefits and consumer subjective knowledge to purchase intention. As antecedents of perceived risks and perceived benefits, subjective knowledge, mobile Internet familiarity, credibility for the purchase and provided information level are proposed and verified. Results from this study are as follows: First, the effect of perceived risks to purchase intention is not significant whereas that of perceived benefits is significant. Second, this study revealed that mobile Internet familiarity, credibility for the purchase and information level are significantly related to mobile purchase intention through perceived benefit. Third, subjective knowledge makes a significant impact on purchase intention directly not mediated by perceived risk or perceived benefit. Based on these results, managerial implications for mobile commerce vitalization and marketing strategy are discussed. Finally, limitation for this research and further research issues are suggested.

• Asia pacific journal of information systems
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• v.15 no.2
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• pp.65-96
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• 2005

It is generally believed that, compared to traditional commerce, Electronic Commerce(EC) is more difficult to gain and sustain customers. One of the major reasons that customers do not use EC is lack of trust. Previous researches on the EC user's trust suggested that risk is an antecedent of trust and the concept of trust is highly related to risk. This study proposed a combined model in which includes the factors based on generic information security risk analysis methodology and trust factors in EC. The objectives of this study are follows; first, investigating the relationship between trust and risk that are antecedent factors of purchase intention, and second, examining the validity of information security risk analysis approach in EC environment. Based on the survey results of 143 MBA students statistical analysis showed that factors like threats and controls were significantly related to risk, but assets did not have statistically significant relationship with risk. Controls and knowledge of EC had meaningful effect on user's trust. This study found that risk analysis methodology which is generally used at organizational level is practically useful at user level on EC environment. In conclusion, the results of this study would be applied to generic situation of information security for analyzing and managing the risk. Besides, this study emphasized that EC vendors need to pay more attention to the information security risk to gain customer's trust.

• Information Systems Review
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• v.8 no.2
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• pp.211-234
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• 2006

The purpose of IT Service Level Management(SLM) has recently shifted from being a simple financial contract(SLA contract itself) towards a system(SLA management system) for the management of the customer's expectations and the provider's service. The aim of this paper is to introduce and present the systematic SLM using statistical method. We discuss the service level according to two points of view: statistical method and service level management. First, we go into more detail on the objective service level using statistical method. Second, we give an overview of total service level assessment method. The proposed framework enables to measure total service level as IT outsourcing performance quantitatively from the aspect of business strategy.

• Journal of Korea Society of Industrial Information Systems
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• v.25 no.1
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• pp.41-53
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• 2020

Supply chain management (SCM) became a critical success factor for firms. As a result, researchers have carried out related research on SCM. This study aims to explore the research trends in SCM in Korea using network text analysis. We collected the information of 586 articles published in Korean journals using the RISS database, and analyzed the network generated by keywords proposed in the articles. The results showed that there are five research keyword clusters such as logistics, information systems, partnership, risk management, and sustainability.

• Journal of Technology Innovation
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• v.14 no.3
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• pp.183-208
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• 2006

Mobile banking is one of the most representative services applied to the mobile technology. However, there are few recent studies about the user acceptance of mobile banking, and prior studies only have been related to the positive effects of the service acceptances such as e-commerce and Internet banking service. The purpose of this research is to grasp the particular risk essentials in mobile banking which customers perceive, and the risk degree of user recognition which affect customer intention to adopt mobile banking through the exploratory research. The perceived risk is segmented into the performance risk, financial risk, time risk, social risk (or psychological risk), and privacy risk based on Cunningham's research (1967) and other recent studies. In the Unified Theory of Acceptance and Use of Technology (UTAUT), we have attempted to determine how different perceived risks have influence on the mobile banking adoption intentions of both the mobile banking users and potential users. The results indicate that performance expectancy, effort expectancy, and social influence have positive influences on the intention to use mobile banking service while perceived risk has a negative influence on the intention to use and performance expectancy.

• Journal of the Korean Institute of Gas
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• v.11 no.3
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• pp.56-63
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• 2007

These days, needs and wants of the customers are getting diversified and the market is also changing rapidely. Many organizations are now attempting change and innovation activities to improve products and service quality. This study was performed to apply 6 sigma tools for the efficient repair management of city gas supply equipment. Vital few factors, RISK factors, sigma values, root causes. and solutions were derived by 6 sigma tools. We are performing statistical process control for the new process. Six sigma for city gas supply equipment safety management enabled to improve the business management for efficiency by reducing variation and eliminating cost for quality.

• 한국IT서비스학회:학술대회논문집
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• 2006.11a
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• pp.232-239
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• 2006

최근 전 세계적으로 서비스 산업의 노동력 비중이 늘어나고 서비스업 뿐만 아니라 농업 및 제조업 분야에서도 서비스의 가치 비중이 높아지고 있다. 그러나 최근까지 서비스는 대부분 제공자의 직관과 경험에 의존하여 운영되었기 때문에 서비스의 성과와 고객 만족도는 미미한 수준에 그칠 수밖에 없었다. 이에 따라 서비스의 생산성을 향상시키고 서비스 수준을 혁신하는 방법을 찾는 것이 산업 사회의 주요 현안으로 떠올랐고 이러한 배경 하에 서비스업의 본질을 과학적으로 규명하여 서비스 분야의 혁신을 이루기 위해 경영학, 사회과학, 산업공학 등 여러 분야의 지식을 종합하여 서비스 과학(Services Science)이라는 새로운 학문 분야를 만들려는 움직임이 일기 시작했다. 서비스 과학의 목적은 공급자와 고객 사이에 가치를 창출하는 일련의 과정인 서비스를 보다 과학적인 방법을 통하여 측정하고 예측할 수 있는 것으로 변환시킴으로써 서비스의 미래 가치와 위험을 정량적으로 예측하고 나아가 서비스의 성과와 만족도를 높이는 것이라고 할 수 있다. 본 연구에서는 U-city 건설에 중추적 역할을 할 것으로 기대되는 지리정보시스템(GIS)의 비즈니스 모델을 대상으로, GIS 정보 서비스의 특성을 규명하여 이러한 정보 서비스가 높은 생산성을 갖기 위한 방안으로서 다학제적 관점의 공유를 통해 다양한 학문 분야의 지식을 종합 적용하고 서비스의 특성을 고려하여 직관과 경험이 아닌 과학적인 도구와 방법론을 통해 GIS 정보 서비스를 관리할 것을 제안한다.

• 한국IT서비스학회:학술대회논문집
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• 2003.11a
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• pp.323-333
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• 2003

본 연구에서는 정보화사업의 성과는 직접적으로 하나의 효과만을 발생시키지 않고 다양한 단계에서 다양한 형태의 성과로 발생된다는 점에서 정보화사업의 추진단계를 사업추진 전(前) 단계(사전평가), 사업추진 진행단계(진행평가), 사업추진 완료 후 운영단계(사후평가)로 구분하고 각 단계별로 정보화사업의 성과를 측정하기 위한 정보화사업 추진단계별 평가모형을 제시하였다. 각 추진단계별 평가영역 및 평가항목의 개발은 정보화사업 평가항목에 관한 선행연구들에 대한 이론적 고찰과 국내 외 공공부문에서 실제 적용하고 있는 사례를 중심으로 도출하였으며, 특히 본 연구에서의 중점연구대상 정보화사업인 문화정보화사업을 중심으로 제시하였다. 각 단계별 평가영역 및 평가항목으로는 사전평가에서는 사업추진 계획영역의 비용산정적정도, 사업적 타당도, 전략적 타당도, 위험도분석, 추진계획적정도의 5개의 평가항목으로, 진행평가에서는 사업추진 실행영역의 사업추진효율성, 자원관리적정도, 아웃소싱관리적정도 등 3개 평가항목을 제시하였다. 또한 사후평가에서는 정보시스템 구축성과 영역의 경우 시스템품질, 정본품질, IS 서비스 품질을, 정보시스템 운영성과 영역은 시스템의 활용도와 사용자 만족도를, 조직 및 경영성과 영역은 사업적 기여도와 전략적 기여도를 각각 제시하였으며, 아울러 각 평가항목별 세부 평가항목을 함께 제안하였다.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.30 no.3
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• pp.76-85
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• 2022

Work situational awareness test (WSAT) has been utilized to estimate the fatigue risk of workers who worked with time pressure or latent accident risks at their work environment. Thus researchers decided to use WSAT to estimate fatigue risk of cabin crews of an airline in Korea and to analyze empirically how such risk might have an effect on cabin crew's safety behavior. This was because there had not been enough research on accessing cabin crews' fatigue and analyzing its risk for the flight safety. In addition, the mediation effect of cabin crew's planning was also analyzed through Sobel-test by researchers among external factors such as lack of concentration, attention deficit, distraction and safety behavior. According to empirical analysis, it was found attention deficit and distraction of cabin crews due to fatigue during the flight had a significant negative effect on their planning. Planning was also proven to have mediation effect to cabin crew's safety behavior.