• Journal of the Korean Society for information Management
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• v.20 no.2
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• pp.177-198
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• 2003

The most significant part of this study is in developing an experimental medel of user-friendly PDL. This study proposes both theoretical (conceptual) and physical (operational) models. The theoretical model includes the analysis on various factors and the realtionsips among factors which have a serious impacts on the design, building, and managing of PDL. And the physical model shows the shows the detailed structure and process which could be useful for both PDL designers and managers. Also provided is the images of major user interfaces, of which a PDL would be developed on the basis of the proposed medel in near future.

• Korean Business Review
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• v.11
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• pp.67-81
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• 1998

In this study, we discuss the possibility of applying the group technology to the service area. We analyze student service system to improve college student service and constructed new service cells using the group technology. To do so, we build service cells for the information technology support and related business in college student service with the standard of service cell formation process. This naturally leads us to the way to improve or to solve those problems such as waiting time and complexity of the related department to provide service to the student. The application of the group technology means the increase of the investment in the view point of the owner. However, to stand against the infinite competition and the open of the education market, university have to prepare. This preparation can be helped by applying the group technology for improving the college student service quality.

• Journal of Korean Society of Archives and Records Management
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• v.20 no.4
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• pp.185-203
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• 2020

The development of the Preservation Metadata: Implementation Strategies (PREMIS) aims to preserve practices beyond the limits of the Open Archival Information System (OAIS) conceptual framework; however, the examples and guidelines on connecting each metadata element to the actual data are unclear, making the design of preservation metadata in real digital archives difficult. Hence, this study investigates actual PREMIS 3.0-based preservation metadata management cases, preserves digital resources in various digital archive environments, and derives implications for the implementation and design of preservation metadata. Based on the analysis, the study proposes preservation metadata elements that can be considered when designing preservation metadata for digital archives according to PREMIS 3.0 application profile guidelines.

• Journal of the Korean Geosynthetics Society
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• v.1 no.1
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• pp.31-41
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• 2002

This paper presents the results of stability analyses on soil-reinforced segmental retaining walls in a tiered arrangement. Four different walls were examined to investigate the appropriateness of their designs within the context of the current design guidelines based on limit equilibrium. Slope stability analysis against the compound failure mode, which is frequently ignored during design, was also performed based on the method recommended by FHWA design guidelines. The results indicate that the as-built designs of some of the walls examined do not meet the minimum factors of safety for the external and internal stabilities, and for the compound failure mode. The implications of the findings from this study are discussed.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.11a
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• pp.320-322
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• 2018

선박이 부두의 계류시설에 접촉할 때 발생하는 접안에너지는 해당선박의 접안속도에 가장 큰 영향을 받는다. 접안속도가 과다할 경우 부두에 접촉하는 사고로까지 이어질 수 있으므로 각각의 부두 특성에 맞는 적절한 접안속도를 설계하는 것이 중요하다. 선박접안속도의 경우, 일반적으로 대수정규분포를 따른다고 가정하고 있으나 국내에서는 이에 대한 검증이나 연구가 없어 해외의 사례를 바탕으로 설계접안 속도를 설정하고 있는 상황이다. 이에 본 연구에서는 부두의 선박접안속도를 설계하기 위한 통계학적인 접근으로 접안속도의 실측데이터를 토대로 그 빈도수를 히스토그램으로 표현하여 각각의 확률분포도와 비교 분석하고, 확률분포에 대한 검정법으로 K-S (Kolmogorov-Smirnov Test) 검정, A-D(Anderson-Darling) 검정, Q-Q(Quantile-Quantile) Plot 등을 이용하여 접안속도 분포에 적합한 확률분포도를 확인하였다. 분석 결과, 선박접안속도의 빈도분포는 일반적으로 알려진 대수정규분포 뿐만 아니라 Weibull 분포와 적합한 형태를 보이는 것을 알 수 있었다. 추가적으로 본 연구에서는 초과확률 개념에서의 접안속도의 예측치를 구하여 구해진 1/1000, 1/10000의 접안속도 예측치를 설계접안속도의 참고자료로 제안하고자 한다.

• Convergence Security Journal
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• v.8 no.4
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• pp.183-189
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• 2008

E-mail's role has been increased due to its merit which is sending demanded information in real-time anywhere, anytime. However, Today's E-mail security threats have being changed intelligently to attack against the specific agency. The threat is a limit to respond. Therefore precise definition and development of security technology is needed to analyze changing environment and technologies of e-mail so that remove fundamental security threat. we proposed Next Generation E-mail System Security Structure and the Next Generation fusion System using authentication As a result, in this study, we development of Next Generation E-mail System Security Structure. This system can protect E-mail user from social engineering hacking technique, spam, virus, malicious code and fabrication.

• Journal of Digital Convergence
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• v.10 no.7
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• pp.31-40
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• 2012

This study intends to investigate some practical problems that arise from the development of the social commerce market and propose a set of consumer protection policies. To that purpose, we discuss the concept of social commerce and analyze a few common types of social commerce in Korea. Then, we look into the problems of the social commerce industry and propose a set of consumer protection policies that can deal with those problems. The goal of the current paper is to suggest optimal policies that can protect consumers from this new trend of online transactions. We hope that the proposals can help establish the base of consumer protection from the social commerce business.

• The Journal of Korean Association of Computer Education
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• v.18 no.2
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• pp.59-70
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• 2015

This paper aims at developing a valid evaluation tool which has reliability to measure the tendency of cyber bullying that is on the increase recently. After setting up the concept of cyber bullying and exploring its factors by reference to advanced research, we developed the draft tool through modifying by the expert group. By conducting several surveys using this evaluation tool, we have verified the reliability and validity of our tool. And we also have developed an evaluation tool to measure its tendency. As a result, the complementary evaluation tool of cyber-bullying tendency was proposed with more advanced and accurate test.

• Journal of the Korean Association of Geographic Information Studies
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• v.5 no.3
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• pp.68-76
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• 2002

As modern public administrations are constructing homepages based on GIS and enhancing public services through interactive communication with their citizens, cyber governance and internet GIS have been conglomerated more than before. As such, the transformation from 'GIS for public management' to 'Internet GIS for cyber governance' is in progress. In the future, cyber governance based on Internet GIS can be a new paradigm for public management. The aim of this study is to look for the applications of internet GISs for cyber governance. For this purpose, the study examines characteristics of cyber governance and internet GIS and analyses similarities between them. Based on this analysis, the study proposes various ways of applying internet GISs for cyber governance.

• Journal of Environmental Policy
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• v.9 no.3
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• pp.3-27
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• 2010

This study empirically investigates whether urbanization triggers urban disaster damages in the metropolitan areas of Korea by applying panel data analysis. Issues are approached with respect to the perspective that increased natural disaster damages are closely related with urbanization. This paper describes the conceptual framework of disaster management to understand the factors that determine urban disaster damages in Korea. This study used a simplified model with some key factors for analysis, because flood damage factors in urban areas are too diverse, and a full understanding of every cause is not feasible. The results indicate that urbanization does not necessarily lead to increasing urban disaster damages and if properly managed, urbanization can actually reduce urban disaster damage.