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Long-Term Science Goals with In Situ Observations at the Sun-Earth Lagrange Point L4

  • Dae-Young Lee;Rok-Soon Kim;Kyung-Eun Choi;Jungjoon Seough;Junga Hwang;Dooyoung Choi;Ji-Hyeon Yoo;Seunguk Lee;Sung Jun Noh;Jongho Seon;Kyung-Suk Cho;Kwangsun Ryu;Khan-Hyuk Kim;Jong-Dae Sohn;Jae-Young Kwak;Peter H. Yoon
    • Journal of Astronomy and Space Sciences
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    • v.41 no.1
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    • pp.1-15
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    • 2024
  • The Korean heliospheric community, led by the Korea Astronomy and Space Science Institute (KASI), is currently assessing the viability of deploying a spacecraft at the Sun-Earth Lagrange Point L4 in collaboration with National Aeronautics and Space Administration (NASA). The aim of this mission is to utilize a combination of remote sensing and in situ instruments for comprehensive observations, complementing the capabilities of the L1 and L5 observatories. The paper outlines longterm scientific objectives, underscoring the significance of multi-point in-situ observations to better understand critical heliospheric phenomena. These include coronal mass ejections, magnetic flux ropes, heliospheric current sheets, kinetic waves and instabilities, suprathermal electrons and solar energetic particle events, as well as remote detection of solar radiation phenomena. Furthermore, the mission's significance in advancing space weather prediction and space radiation exposure assessment models through the integration of L4 observations is discussed. This article is concluded with an emphasis on the potential of L4 observations to propel advancements in heliospheric science.

Industrial Economic Growth and IT Investment: Is Economic Growth an Effect of IT Investment, or a Determinant of Decision-making for IT Investment (산업의 경제 성장과 IT 투자: 경제 성장은 IT 투자의 효과인가, 아니면 IT 투자 결정의 요인인가?)

  • Sangho Lee;Young U. Ryu
    • Information Systems Review
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    • v.19 no.1
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    • pp.185-202
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    • 2017
  • Most studies based on production function theory have concluded that economic growth is a result of information technology (IT) capital use. However, some studies have indicated that economic growth is a determinant of IT investment. To determine if these results also hold at the industry level, we use the Granger causality test to analyze bidirectional causality with industry-level data for 1977~2007 from the United States. The results generally reveal that IT investment causes economic growth in many industries under the concept of Granger causality, that economic growth causes IT investment in some industries, and that IT investment is not associated with economic growth in some industries. In the country-level time-series data made by summing up the IT capital and gross output for each industry, the results do not show any causality between IT investment and economic growth. However, they show bi-directional causality between IT investment and economic growth in the panel data. These results may be a source of IT productivity paradox.

Service Blueprint-based Retail Store Operating Process Innovation: The Case of Electronic Shelf Labels (서비스 청사진 기반의 소매매장 운영프로세스 혁신 사례연구: 전자가격라벨(ESL) 구축 사례를 중심으로)

  • Jae-Yong Yang;Geun-Wan Park;Sang-Ryul Lee
    • Information Systems Review
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    • v.20 no.2
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    • pp.189-207
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    • 2018
  • This study aims to analyze price information system and pricing label operation process, which are important information delivery systems of retail stores. This study also intends to identify the problems in store operation and identify academic and practical methods. In-depth interviews, direct observation, and service blueprint techniques were used to define problems in the existing business operation process, and an operating process based on the electronic shelf label (ESL) system is designed as an alternative to problem solving. The changes of the operating process before and after introduction were compared. Results of this study suggest practical implications that the ESL system can be used to solve the problems of the current price management process. The study also suggests the academic significance of presenting a complex research method of problem finding, cause analysis, and alternative presentation by using each research method complementarily.

A Study on Tourism Experience Sharing Using Tourist's Social Networking Service According to Attention Desire: The Moderating Effect of Gender (관심욕구에 따른 관광객의 소셜 네트워킹 서비스를 이용한 관광경험 공유에 대한 연구: 성별의 조절효과)

  • Hee Chung Chung;Namho Chung
    • Information Systems Review
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    • v.19 no.2
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    • pp.37-56
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    • 2017
  • A rapid increase was observed among individuals who want to communicate through a Social Networking Service (SNS). The increasing number of SNS users who create and share information resulted in a huge volume of SNS information. This deluge of information decreases the interest of SNS users, thereby prompting them to generate stimulating and exaggerated information to draw attention to themselves. This study aims to examine the effect of SNS users' desire for attention and share their tourism experience. This study utilizes use and gratification theory and investigates the moderating effect of gender. The analysis shows that the desire for attention influences sharing of tourism experience through compliance and identification at the level of SNS commitment. Gender difference was observed between compliance and identification. This study provides theoretical and practical implications based on the results.

A Study on Mobile Patient Education Service Based on Lean Canvas: The Case of Samsung Medical Center (모바일 환자 교육 서비스의 린 캔버스 적용 사례연구: 삼성서울병원 스마트설명서비스 사례를 중심으로)

  • Seung Jun Lee;Jae Hong Park
    • Information Systems Review
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    • v.19 no.2
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    • pp.57-70
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    • 2017
  • Researchers and industry managers highlight the emergence of mobile healthcare market given the rapid development of IT and the expansion of average life expectancy. Medical institutions, such as university hospitals, are aiming to achieve convenience and effectiveness of treatment by providing patient education through a mobile device. This study examines a case related to the development and usage of a mobile application based on Lean Canvas, namely, the Smart Explanation Service released by Samsung Medical Center. This application comprehensively analyzes the usage status of mobile application-based patient education and its application in clinical settings. This study also examines the level of satisfaction of patients and medical workers toward this application. The result of this study is expected to provide meaningful implication to medical institutions and related industries and enable them to create and offer prepare mobile healthcare services.

Privacy Paradox: A Literature Review and Future Direction (프라이버시 역설에 관한 문헌적 고찰 및 향후 연구방향: 국내 연구를 대상으로)

  • Sanghee Kim;Jongki Kim
    • Information Systems Review
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    • v.20 no.1
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    • pp.115-135
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    • 2018
  • The growing interest in the privacy paradox involving discussions about discrepancy between attitude and behavior led to an increase in the number of studies on the topic. An in-depth theoretical review of the privacy paradox is essential to promote qualitative growth of domestic research in the privacy paradox. In this study, we conducted literature review of existing domestic studies in the privacy paradox. The results of this study showed that the quantity and the quality of research showed marked improvement. Earlier studies primarily focused on the existence of the privacy paradox phenomenon, but existing studies on the causes of the phenomenon gradually increased. Despite the use of various methodologies and analytical tools to investigate the causes of the privacy paradox, research in privacy paradox remains in its infancy. Further efforts are needed to achieve qualitative growth, and further studies should be conducted to introduce the behavioral economic approach. This approach posits that bounded rationality could contribute to a clear understanding of the privacy paradox and the academic development of the privacy field.

Exploring the Analysis of Domestic ERP Process using Process Mining: A Case Study in a Korean Cosmetics Manufacturing Company (프로세스 마이닝을 활용한 국내 중소기업 ERP 프로세스 분석에 관한 연구: 국내 화장품 제조기업의 사례를 중심으로)

  • Jin Woo Jung;Yeong Shin Lee;Bo Kyoung Lee;Jung Yeon Kim;Young Sik Kang
    • Information Systems Review
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    • v.20 no.1
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    • pp.81-98
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    • 2018
  • ERP supports the automation and integration of business processes of enterprises and records voluminous data about the business activities of enterprises. The academe and business enterprises are focusing on process mining, which improves the performance of business processes and strengthens compliance. However, these studies focused on analysis of the business process of large companies, which adopts foreign ERP, such as SAP ERP or Oracle ERP. In comparison with foreign ERP, domestic ERP lags behind in terms of logging and managing of event data. Therefore, the application of process mining to domestic ERP is a challenging task. The present study aims to analyze domestic ERP based on process mining to overcome this challenge. This study discusses the lessons learned from a case study in a Korean cosmetics manufacturing company. Our results are expected to strengthen the competitiveness of Korean small and medium-sized enterprises that adopt domestic ERP and realize the outcomes of the large investment of the Korean government on the ERP implementation of enterprises.

The Impact of Intra-Team and Inter-Team Social Ties on Team Innovativeness and Performance: On the Basis of IT Support (팀 혁신성과 성과에 대한 팀 내, 팀 간 사회적 연결의 영향: IT 지원에 기반하여)

  • Suk Hyun Kim;Junyeong Lee;Chanhee Kwak;Tae Hyung Kim;Heeseok Lee
    • Information Systems Review
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    • v.19 no.2
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    • pp.137-157
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    • 2017
  • Social ties play an important role in today's competitive world. The primary objective of this study is to explore the impact of intra- and inter-social ties on team innovativeness and performance. Through an empirical model of 97 teams in six companies, this study attempts to (i) examine how intra- and inter-social ties affect team innovativeness and team performance; and (ii) investigate how the support for information technology facilitates social ties. Our team-based analysis reveals that strong intra-bonds among members improve team innovativeness and enhance team performance. Inter-linkages among teams also lead to team performance through innovativeness, but they are not directly associated with performance. IT support also considerably enhances social ties.

A Study on the Factors Influencing the Competitiveness of Small and Medium Companies Applied with Smart Factory System (스마트공장 시스템 구축이 중소기업 경쟁력에 미치는 요인에 관한 연구)

  • Young-Hwan Choi;Sang Hyun Choi
    • Information Systems Review
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    • v.19 no.2
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    • pp.95-113
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    • 2017
  • The advent of information communication technology or the Fourth Industrial Revolution facilitated the fusion of equipment and management systems, such as Manufacturing Execution System, Enterprise Resource Planning, and Product Lifecycle Management, in the successful implementation of smart factories. The government supports the early adoption of these systems in small and medium companies to enhance their global competitiveness in producing products that can be recognized in a dramatically changing manufacturing environment. This study introduces smart factories to improve company competitiveness and address influences from the government assistance, CEO leadership, external consultancy, and organizational participation. We analyzed 101 results received from the questionnaires circulated to small- and medium-sized manufacturing companies. Given a successful smart factory implementation, company competitiveness is the factor that mostly influences organizational participation, government assistance, external consultancy, and CEO leadership. This study suggests several perspectives to implement a smart factory, which is the most important aspect of company competitiveness.

Who Cares More about Security?: Effects of Personality Traits on PC Security Intention (누가 보안에 더 신경을 쓰는가?: 성격특성이 PC보안의도에 미치는 영향)

  • June-Young Kim;Tae-Sung Kim
    • Information Systems Review
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    • v.20 no.1
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    • pp.99-114
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    • 2018
  • Technical measures for computer security are essential, but they are not a sufficient condition for security. Therefore, a personal approach to user's security behavior should be developed. Personality, which is a human aspect, is a behavioral characteristic that characterizes each individual and facilitates prediction of how an individual will behave in certain situations. Protection motivation theory has been used extensively in the security research on human behavior. The present study discusses how protection motivation was formed from personality traits. Thus, organizations can refer the result of this study for their HRD and HRM concerns.