• Journal of the Korea institute for structural maintenance and inspection
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• v.20 no.1
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• pp.48-55
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• 2016

The assessment and prediction of service life of a structure are usually under uncertainty so that rational probabilistic concepts and methods have to be applied. Based on these rational assessment and prediction, optimum maintenance strategies to minimize the life-cycle cost and/or maximize the structural safety can be established. The service life assessment and prediction considering maintenance actions generally includes effects of maintenance types and times of the structural components on the service life extensions of structural system. Existing researches on the service life management have revealed the appropriate system modeling considering the correlation among the components is required for system reliability analysis and probabilistic service life estimation. However, the study on correlation among the maintenance actions is still required. This paper deals with such a study for more effective and efficient service life management. In this paper, both the preventive and essential maintenances are considered for the extended service life estimation and management.

• KIPS Transactions on Computer and Communication Systems
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• v.7 no.5
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• pp.111-118
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• 2018

The effects of the Fourth Industrial Revolution on manufacturing are spreading by policies to secure or strengthen the manufacturing competitiveness of each country. Strengthening policies on manufacturing necessitate nurturing manpower for smart manufacturing. This study examines the difference of the experts' perception about the educational curriculum to develop the knowledge of Product Lifecycle which covers the whole knowledge area of product development among the knowledge areas aimed at fostering the manpower of smart manufacturing for the $4^{th}$ Industrial Revolution Era. Experts were aware that future developments in digital development, production, and new product development are most important, and that they feel that the whole knowledge area is generally weak. In this study, the implications for the development of educational curriculum in the future are derived from the perception difference of knowledge on Product Lifecycle obtained through expert survey.

• Proceedings of the Korea Association of Information Systems Conference
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• 2005.12a
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• pp.171-184
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• 2005

The e-business strategies ultimately Pursue creating the maximal value for customers through the competitive advantages and business opportunities newly created on the basis of information technologies. For the realization of e-business strategies, the successful implementation and operation of e-business system must be the crucial activities in and out of an organization. Therefore, in physical world, there were lots of interests that what kind of key factors can lead the success of e-business system. Moreover, in the field of academia also, there have been many research results for investigating and finding out the key success factors for e-business system. However, the perceptual level of the significance of key success factors that organization members perceive can be changed over each phase of system life cycle such phases as introduction, growth, maturity, and decline. This study investigated that there might be significant differences in the perceptual level regarding importance of success factors among phases of system life cycle.

• Review of KIISC
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• v.9 no.2
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• pp.68-68
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• 1999

최근 발생한 많은 정보 시스템 침해 사고로 인해 특정 목적 ·환경에 맞게 개발된 상용 보호 제품의 추가만으로는 시스템을 효과적으로 보호할 수 없다는 것이 실증되었다. 따라서, 조직의 정보시스템 환경에 보다 뛰어난 보호를 제공하기 위한 보호 관련 활동을 시스템 개발 과정과 통합하여 초기 단계부터 중요하게 고려해야 한다는 주장이 널리 제기되었다. 이를 위해 시스템 개발 초기단계부터 운용유지에 이르는 전 단계에 걸쳐 안전한 시스템 구축을 위한 체계적인 보호공학 방법론이 필요하게 되었다. 본논문에서는 획득자를 대상으로 시스템 수명 주기 전반에 걸쳐 단계별로 고려해야할 보호 고려사항과 수행활동을 체계화한 시스템 개발 기반 보호공학 방법론을 소개한다.

• Journal of Convergence for Information Technology
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• v.7 no.2
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• pp.67-76
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• 2017

Along with shortening the life cycle of software utilization and supporting various types of user functions, the importance of software architecture development has been emphasized recently. If a software architecture is developed flexibly and reliably for expansion to support new functionality, it can quickly cope with new market demands. This paper proposes an architecture design method based on design recovery of open source software to reuse the software in the development of sustainable software system. When using open source software to develop a software system based on software architecture, we can develop a software system rapidly and also can improve the reliability of the system because we use the already proven open source software in the development.

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.32 no.5
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• pp.27-38
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• 2003

• Journal of the Society of Naval Architects of Korea
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• v.42 no.6 s.144
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• pp.698-709
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• 2005

This research analyzes the design work and construction work, which might be arising out of or during the procurement process of naval ships of the Korean Navy. This research also suggests the applicable information methodology driven out by utilizing PLM/POM tool, which could be one of practical solutions to the problems arising from the outcome of this analysis. As to the procedure and methodology of information technology of design and construction work of the ship, IPPD was adopted. Before its actual application, main contents of the IPPD were introduced in this research. And it's real application and subsequent concrete surroundings of IPDE were defined. In addition, addition, several detailed and necessary works to be fulfilled were defined, mainly focused on the application of IPDD for the design and construction stages of the ships suitable for the Korean Navy, And also, this analysis defines the main functions to be secured by adopting the PLM/POM tool and obtained the relevant functions partially herewith.

• Review of KIISC
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• v.9 no.2
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• pp.69-82
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• 1999

최근발생한 많은 정보시스템 침해 사고로 인해 특정 목적 ·환경에 맞게 개발된 사 용보호 제품의 추가만으로는 시스템을 효과적으로 보호할수 없다는 것이 실증되었다, 따라 서 조직의 정보시스템 환경에 보다 뛰어난 보호를 제공하기 위한 보호 관련 활동을 시스템 개발 과정과 통합하여 초기 단계부터 중요하게 고려해야 한다는 주장이 널리 제기 되었다, 이를 위해 시스템 개발 초기단계부터 운용유지에 이르는 전단계에 걸쳐 안전한 시스템 구축 을 위한 체계적인 보호공학 방법론이 필요하게 되었다. 본논문에서는 획득자를 대상으로시 스템 수명 주기 전반에 걸쳐 단계별로 고려해야할 보호 고려사항과 수행활동을 체계화한 시 스템 개발 기반 보호공학 방법론을 소개한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.1
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• pp.568-574
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• 2021

According to the Framework Act on Sustainable Infrastructure Management, which has been enforced since 2020, reservoirs should be managed to minimize life cycle costs caused by aging through preemptive management such as systematic maintenance and performance improvement. For maintenance in consideration of the life cycle, it is essential to derive the end of life due to continuous performance degradation as the common period increases. For this purpose, it is necessary to develop a performance-predicting model for reservoirs. In this study, a reservoir was divided into main complex facilities to develop a model for the maintenance of the life cycle. A model was developed for each facility. For model development, maintenance information data were collected under management by the Rural Community Corporation. The data available for model development were selected by analyzing the collected data. The developed model was used to predict the expected life expectancy of the reservoir in the current maintenance system and the expected life expectancy in the case of no action. By using the developed model, it is expected that it will be possible to support decision making in operation management and maintenance while considering the life cycle of the reservoir.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.7 no.4
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• pp.159-168
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• 2012

The purpose of this study is to analyze the relationship of MOT and NPD performance in medium-sized manufacturing firms. To accomplish the purpose of the study, working hypotheses were established based on the literatures about the impacts of MOT factors on the NPD performance. The sample of this study is as follows : 12 electrical and electronics companies, 18 machine and engineering companies, 16 parts and materials companies. In order to verify hypotheses, the data were collected from team leader and manager of research center, R&D, and production department of these companies and the leader of R&D project team who all had experience in project or were participating in it in latest 3 years. The results of study were summarized as follows : First, in analysis on the reality of MOT factors in sample firms, will of top management level on the MOT was comparatively high but relatedness of business strategy and technology strategy, open R&D system, systematic time scheduling, management of R&D manpower, and developing and adapting PLM system were common level. Second, to improve NPD performance in medium-sized manufacturing firms, will of top management level on the MOT, relatedness of business strategy and technology strategy, open R&D system, systematic time scheduling, management of R&D manpower, and developing and adapting PLM system were intensively required.