• 한국전자거래학회지
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• 제9권2호
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• pp.87-108
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• 2004

기존의 건설산업에서는 건설산업의 전 생명주기 동안 발생하는 모든 설계도면과 시방서 및 문서를 방대한 분량의 종이로 관리하여 왔다. 그 결과 유사 공사 실적자료의 재사용, 설계자와 시공자간의 정보교환ㆍ공유에 있어 공사의 실적저하, 예산낭비 등의 문제를 가져왔다. 이러한 문제를 해결하기 위하여 건축 정보의 교환ㆍ공유에 기존의 형식인 종이대신 전자화 된 도면과 문서를 사용하도록 하는 업무개선의 요구가 있어왔고, 이러한 문제를 총체적으로 해결하기 위하여 정부차원의 건설분야 전자거래프로그램이 요구되게 되었다. 본 논문은 건설CALS/EC(Continuous Acquisition and Life Cycle Support/Electronic Commerce)와 관련된 요소기술의 국내외적인 적용사례를 바탕으로 하여 도면전자납품을 위한 건설 CALS/EC에서 표준기술이 되는 요소기술의 활용방안과 향후 개발 방향에 관하여 제시해 보고자 한다.

• 한국전자거래학회지
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• 제12권3호
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• pp.19-31
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• 2007

본 논문에서는 앞으로 국가의 RFID를 이용하여 물품자산을 관리할 수 있는 국가물품식별코드의 운용방안을 제시한다. 첫째, 국가에서 수행하는 물품자산관리체계의 운용체계를 제시한다. 둘째, 상품구매와 물품자산 관리간의 연계성을 고려하여 ISO/IEC 15459를 따르는 국가물품식별코드체계의 구조를 제시한다. 그리고 이 식별코드체계를 ISO/IEC 18000-6C 태그에 인코딩하는 방안을 제시한다. 셋째, 상품구매 및 물품자산관리 단계에서 국가물품식별코드를 생성 및 관리하기 위한 운용 업무 프로세스를 제시한다.

• 환경영향평가
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• 제20권5호
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• pp.765-777
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• 2011

According to the total pollution load management system, exact prediction and analysis of water quality and discharge has been required in order to allocate the amount of pollution load to each local government. In this study, QUAL2E model was used for comparison with other water quality models and improve the inadequate to forecast future water quality. And Various calibration and verification methods were applied to deal with existing uncertainties of parameter during modeling water quality. For user convenience, A GUI(Graphical User Interface) system named "QL2-XP" model is developed by object-oriented language for the user convenience and practical usage. Suggested GUI system consist of hydraulic analysis, water quality analysis, optimized model calibration processes, and postprocessing the simulation results. Therefore this model will be effectively utilized to manage practical and efficient water quality.

• 디지털산업정보학회논문지
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• 제7권2호
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• pp.101-113
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• 2011

As information and communication technology advances driving the rapid evolution of e-commerce and e-business becomes on effective marketing means for both business and institutions, the industry deals with these changes and has a profound, positive impact on production and operations management. But the construction industry falls behind compared with other industries in productivity, informationalization, automatization and globalization. Especially even though the informationalization is inevitable in any developing society, a number of construction industries can hardly cope with it properly. As the construction industry gets informationalized and advanced, the introduction of PMIS (Project Management Information System) is making progress actively for the effective construction project control and productivity improvement in construction. With the government officials' political promotion and the rising desire for construction informationalization of enterprises, many are attempting to develop integrated systems or to replace a previous system with a more advanced alternative. Construction Industry, however, has the peculiar properties that the period for the completion of construction is limited and on top of that, most of its data processing systems are seen as being an early stage in the design of management information systems. As a result, there are extremely few applications in the construction industry. In this paper, we propose the PMIS system based on new model 4CM that improves on previous models.

• 수산경영론집
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• 제34권1호
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• pp.87-115
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• 2003

Korean fisheries societies have had many difficulties for economic, social, and living circumstances. The government has tried many projects to improve these circumstances. But the results of the projects did not come up to his expectation. Recently, blue tourism is emerging as an alternative for improving these circumstances. So we applied a tourism value chain model for identifying what value activities and resources needed. According to the tourism value chain model, it was identified that there were six different value activities, i. e. advertising, reserving, moving, experiencing, returning, and after services of blue tourism. To identify which of the resources are sufficient or not in Korean blue tourism, we compared the required resources with actual ones. It was identified that Korean fisheries societies have so sufficient H/W related resources, but not IT related S/W resources, humanware-based resources, some industrial H/W resources and sociocultural resources. Therefore, Korean blue tourism will be activated, we have to concentrate our efforts on supplementing some scant blue tourism resources, i.e. S/W and humanware related resources and developing a variety of tourism programs to H/W resources. Generally, sustainable tourism needs all of S/W, H/W, and humanware resources. So we suggest several policies for the aspects of S/W, H/W, and humanware resources to activate blue tourism. But before carrying these policies out, they should be tested by field studies. And tourism motivations will be also studied because effective tourism marketing is impossible without an understanding of consumers' motivations.

• Smart Structures and Systems
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• 제15권3호
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• pp.881-896
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• 2015

The authors' research group has developed a noncontact type of sensors which directly measure the inter-story drift displacements of a building during a seismic event. Soon after that event, such seismically-induced drift displacement data would provide structural engineers with useful information to judge how the stories have been damaged. This paper presents a scheme of estimating the story cumulative plastic deformation ratios based on such measured drift displacement information toward the building safety monitoring. The presented scheme requires the data of story drift displacements and the ground motion acceleration. The involved calculations are rather simple without any detailed information on structural elements required: the story hysteresis loops are first estimated and then the cumulative plastic deformation ratio of each story is evaluated from the estimated hysteresis. The effectiveness of the scheme is demonstrated by utilizing the data of full-scale building model experiment performed at E-defense and conducting numerical simulations.

• 통상정보연구
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• 제9권3호
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• pp.305-320
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• 2007

With expanded use of B2B(between enterprises), B2G(between enterprises and government) and EDI(Electronic Data Interchange), and increased amount of available network information and information protection threat, as it was judged that security can not be perfectly assured only with security technology such as electronic signature/authorization and access control, Bayesian networks have been developed for protection of information. Therefore, this study speculates Bayesian networks system, centering on ERP(Enterprise Resource Planning). The Bayesian networks system is one of the methods to resolve uncertainty in electronic data interchange and is applied to overcome uncertainty of abnormal invasion detection in ERP. Bayesian networks are applied to construct profiling for system call and network data, and simulate against abnormal invasion detection. The host-based abnormal invasion detection system in electronic trade analyses system call, applies Bayesian probability values, and constructs normal behavior profile to detect abnormal behaviors. This study assumes before and after of delivery behavior of the electronic document through Bayesian probability value and expresses before and after of the delivery behavior or events based on Bayesian networks. Therefore, profiling process using Bayesian networks can be applied for abnormal invasion detection based on host and network. In respect to transmission and reception of electronic documents, we need further studies on standards that classify abnormal invasion of various patterns in ERP and evaluate them by Bayesian probability values, and on classification of B2B invasion pattern genealogy to effectively detect deformed abnormal invasion patterns.

• 한국전자거래학회지
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• 제19권4호
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• pp.195-204
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• 2014

최근 지능화 고도화 되고 있는 사이버 위협으로부터 중소기업을 보호하기 위해서는 24시간 예방 탐지 분석 대응 해 주는 보안관제가 필수적이다. 이러한 중소기업의 보안관제를 지원하기 위해 정부로부터 예산지원을 받아 중소기업기술지킴센터가 구축되어 운영 중이며, 현재 900여 개 중소기업에 대해 보안관제서비스를 지원하고 있다. 본 논문에서는 중소기업 기술지킴센터에서 보안관제서비스를 지원하고 있는 중소기업들의 이상트래픽에 대해 살펴보고 중소기업의 보안관제 개선방안을 제시하였다.

• The Journal of Asian Finance, Economics and Business
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• 제8권12호
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• pp.63-73
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• 2021

This study investigates the key determinants of exchange rate (RER) misalignment for the period 1991 to 2020. The BEER technique has been used to estimate the degree of the equilibrium exchange rate. To explore the actual exchange rate misalignment and to assess the behavior of variables that are different in different regimes of undervaluation and overvaluation, the nonlinear technique of Markov regime-switching (MSM) was applied. The mean and variance of each regime are highly significant and show that undervaluation episodes have a low mean (116.139) and more volatility (1.229) while overvaluation episodes have a high mean (126.732) with less volatility (0.871). The findings show that MSM accurately identifies exchange rate misalignment in both regimes as separate incidents of overvaluation and undervaluation. Results further depict that misalignment of the RER is affected by terms of trade, net foreign assets, interest differential, government investment, and consumption decision. Results recommend that if policymakers want to use the exchange rate as a policy tool, they must first consider the drivers of the equilibrium exchange rate. As a result, any deliberate actions to address exchange rate misalignment must focus on the underlying fundamentals that drive the exchange rate.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권2호
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• pp.587-608
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• 2022

The European Union recently established the General Data Protection Regulation (GDPR) for secure data use and personal information protection. Inspired by this, South Korea revised their Personal Information Protection Act, the Act on Promotion of Information and Communications Network Utilization and Information Protection, and the Credit Information Use and Protection Act, collectively known as the "Three Data Bills," which prescribe safe personal information use based on pseudonymous data processing. Based on these bills, the personal data store (PDS) has received attention because it utilizes the MyData service, which actively manages and controls personal information based on the approval of individuals, and it practically ensures their rights to informational self-determination. Various types of PDS models have been developed by several countries (e.g., the US, Europe, and Japan) and global platform firms. The South Korean government has now initiated MyData service projects for personal information use in the financial field, focusing on personal credit information management. There is also a need to verify the efficacy of this service in diverse fields (e.g., medical). However, despite the increased attention, existing MyData models and frameworks do not satisfy security requirements of ensured traceability, transparency, and distributed authentication for personal information use. This study analyzes primary PDS models and compares them to an internationally standardized framework for personal information security with guidelines on MyData so that a proper PDS model can be proposed for South Korea.