• 한국디지털정책학회:학술대회논문집
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• 2005.11a
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• pp.143-161
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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.

• Journal of the Korea Safety Management & Science
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• v.19 no.3
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• pp.97-107
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• 2017

This research studies on the demand forecasting for service parts considering parts life cycle, that gets relatively less attentions in the field of forecasting. Our goal is to develop forecasting method robust across many situations, not necessarily optimal for a limited number of specific situations. For this purpose, we first extensively analyze the drawbacks of the existing forecasting methods, then we propose the new demand forecasting method by using these findings and reinforcement leaning technique. Using simulation experiments, we proved that the proposed forecasting method is better than the existing methods under various experimental environments.

• Journal of the Society of Naval Architects of Korea
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• v.41 no.2
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• pp.121-127
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• 2004

The objective of this study is to design the technical information system for naval engineering (named TISNE). As the basic concept of the system, CALS (Continuous Acquisition and Life-cycle Support) and KMS(Knowledge Management System) were considered for the management and sharing of standardized digital information throughout the life-cycle of naval ship. To define the system components and their functionalities, the processes of naval ship design and construction were reviewed. Also web-based system prototype and the graphical user interlaces were designed and implemented.

• 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.

• Journal of the Korean housing association
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• v.15 no.1
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• pp.33-40
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• 2004

Considering the present development situation of rental apartment since 1982, the supply of rental housing for low-income dwellers has contributed a amount of quantities, but has been deficient qualities in housing policy. To propose the device of remodeling for low-income dwellers in deteriorated apartment, this study investigated the energy consumption of central heating system and the characteristics of maintenance cost in permanent rental apartment. The results of evaluation of alternative heating systems by Life Cycle Costing in permanent rental apartment were as follows; From Life Cycle 15∼20 years by Present Worth Method, the economic heating system of remodeling is central heating system (heat source: B-C oil), unit heating system(natural gas), central heating system(natural gas) in order.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.93-94
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• 2014

Enterprises or public organizations have invested in development of their information systems and operated them repeatedly. Since these information systems projects have unique characteristics such as technology sensitiveness, network effectiveness, embeddedness, and externality, these investment projects have been not taken care of in the field of administration and evaluation. And then, it is difficult to manage and monitor them. In this research, we propose a evaluation life cycle management model on the basis of result to evaluate information systems. This life cycle model with ten stages would furnish a guide to introduction of total evaluation systems.

• Journal of Digital Convergence
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• v.10 no.7
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• pp.77-83
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• 2012

The purpose of this paper is to find out what impact the accural has on the each stage of corporate life cycle. In order to meet that purpose, we collect the financial information from 2001 to 2010 of listed companies and then the regression analysis was carried out to verify the hypothesis. The finding shows that the accural of maturity stage is significantly bigger than those of introductrory, growth stage and smaller than those of shake-out, decline stage.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.20 no.43
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• pp.365-379
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• 1997

Currently the problem of air pollution caused by the motor vehicle emission is of the most serious problems to be solved. Life Cycle Assessment is a process to evaluate the environmental burdens associated with a product or process by identifying and quantifying energy and materials used and wasters to the environment. This paper establishes a Life Cycle Assessment Systems which satisfies the criteria motor vehicle emission for the automobile producers who are currently producing the automobiles with catalytic convert. This plan also considered the constraint of the effective motor vehicle emission by way of the exhaust gas recirculation, electronic fuel injection, closed loop carburetor. In order to develope the performance of the LCA systems, the recent emissions test data have also been applied. The result of the development LCA systems has proved that the LCA plans presented in this paper satisfies the criteria motor vehicle emission and will be contributed to constrain the motor vehicle emission most effectively.

• Proceedings of the KSR Conference
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• 2002.10a
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• pp.684-689
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• 2002

This paper represents the life-cycle cost(LCC) of steel bridges which are located on the train-network. Corrosion problems are mainly considered in the steel members such as steel plate girder, box girder, truss and arch. Based on the current value, initial construction cost, maintenance cost and demolition cost are calculated and life-cycle costs are formulated for the several types of bridges. From the comparison on each LCC, an effective painting method is recommended for reducing the LCC of steel bridges. Even though the initial cost of Super Weather Resistance Heavy Duty Paintings (Resin Fluoride) is expensive, because of the long endurance, the LCC of steel bridges painted with Super Weather Resistance Heavy Duty Paintings (Resin Fluoride) is less than that painted with General Heavy Duty (Rubber Chloride).

• Proceedings of the KSR Conference
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• 2002.10a
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• pp.396-407
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• 2002

New Electric Multiple Units that will be released in the rolling stock market are required to meet regulations of reinforced safety and conveniences for passengers. For those reasons, Vehicle purchasing cost to be increased will be unavoidable. However, The reduction of operating cost by employing effective and efficient design on the EMU at initial phase will be expected. Hence, Vehicle purchasing shall be determined to take into consideration of purchasing cost vehicle at first stage and operation cost appropriately. In order for introducing method to presume such costs, this document will show Life Cycle Cost on vehicle and its applicability.