• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.226-229
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• 2003

Construction manager must consider the possibility on the failure of the project in advance and the contingency to provide against the situation, those of which is a dangerous condition not to predict. If they have a quick decision without understanding the contingency, the over-cost in the total cost would be continuously accumulated, and be a barrier at a project going in progress. A various risk could not be coped with at a time to decide either going or sloping the project until the contingency is applied from the first step to progress the project. But a case to apply the contingency to the construction for the investment or the analysis of the project is a little. The process to evaluate it is also absent. The propose of this paper is the followed ; To establish the total cost including the risk first of all, devide into plus or minus factor of the cost, and then the process to calculate the contingency must be suggested by the regression analysis.

• Journal of Korea Technology Innovation Society
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• v.8 no.1
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• pp.183-208
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• 2005

In recent years, national R&D programs tend to become larger and more complicated, which necessitates strengthening the overall coordination of national R&D programs at the inter-ministerial level from the program planning stage. This paper looks into the status and problems of Korea's national R&D programs and proffers ways to improve the current system It highlights the problems shown in the process of the 2004 overall coordination and their rectification. First, various ad-hoc private-led committee brought about inefficiency in decision making process. Therefore, it is necessary to streamline such committees and strengthen the function of the Office of Science and Technology Innovation, Second, in view of the implementation of the overall coordination system, it is necessary to identify the problems in full detail that were raised in the course of the previous year's overall coordination so that new projects can be allotted minimal grades and follow-up activities can be efficiently put into execution. Third, it is necessary to establish standing committees for constant review and efficient utilization that will be devoted to reviewing programs overlapped and their linkage. Fourth, priority of investment regarding the nation's strategic policy direction should be reflected. Fifth, given the lack of performance-based evaluation system, it is necessary to develop macro and micro evaluation indices in conjunction with enacting the tentatively named "Performance-based Law." The overall coordination system of national R&D programs should be supplemented and further developed in relation to the aforementioned problems and their rectification in order to enhance the expertise, fairness, and efficiency of the nation's R&D coordination system.

• Journal of Distribution Science
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• v.16 no.5
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• pp.91-101
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• 2018

Purpose - This study compares the management efficiency of retailers in China, Korea and other global countries. China's retail industry is experiencing a recession. In order to strengthen the competitiveness of retailers, it is necessary to manage the efficiency. Therefore, we analyzed the management efficiency of Chinese retailers as well as Korea and global retailers who are competing with Chinese retailers. Research design, data, and methodology - The DEA(Data Envelopment Analysis) carried out for evaluating the relative efficiency of multiple DMUs (decision making units) with homogeneity. Data were collected from the American Retail Trade Association (2017). In those distributors' data, 5 of China and 5 of Korea and 10 of other global countries' analyzed. CCR and BCC analysis were performed to determine the cause of the inefficiency of DMUs by measuring the technical efficiency, pure technology efficiency and scale efficiency. Result - Among the 20 retail distributors, Costco, Kroger (Global), Eland World, BGF(Korea) are operating efficiently. Chinese retailers are operating inefficiently. Retailers' CRS status means the growth rate of input is equal to the growth rate of output. In the case of DRS status, the ratio of output to input variable is much smaller. In order to improve inefficiency, reducing input variables can be a solution. For the firms in IRS status, the rate of increase in output is relative greater than the input. That means efficiency is good condition. The analysis result shows that most retailers are showing DRS status especially Chinese retailers. Scale efficiency is a major cause of inefficiency rather than pure technology efficiency. It is recommended for ineffective retailers to reduce inputs to become efficient retailers. Otherwise, retrain existing employees or introducing advanced technologies to increase the output. Conclusions - Most of Chinese retailers are operating inefficiently which caused by the excessive investment in the inputs. On the other hand, Other global retailers are analyzed to be efficient by DEA. In this study, benchmarking targets of some retailers' suggested to improve the management efficiency especially in inputs.

• Knowledge Management Research
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• v.19 no.2
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• pp.109-132
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• 2018

Recently, new financial services related to FinTech has gained attention more and more. Online P2P financial services transactions such as FinTech require careful examination of the constituents of information systems as an investment is made based on the information presented on the online platform without direct face-to-face contact. The purpose of this study is to find out the success factors of online P2P Lending service among FinTech. To serve the purpose, we build IS (information system) success model, and then use Kano model and fuzzy analytic hierarchy process (Fuzzy-AHP) to find out factors for the success of online P2P Lending service. In particular, this study uses Kano model to classify information system satisfaction factors and to calculate the satisfaction coefficient. The Kano model, however, has a drawback of evaluating single criterion. Therefore, we use multi-criteria decision-making technique such as Fuzzy-AHP to derive the relative importance of the factors. The analysis results show different results depending on the analysis technique. In the Kano model, most of the information system factors are a one-dimensional quality attribute. The satisfaction coefficient is highest for personalized service, followed by the responsiveness of service, ease of using a system, understanding of information, usefulness of information' reliability. The service reliability is the highest in dissatisfaction coefficient, followed by system security, service responsiveness, system stability, and personalized service. The results of the Fuzzy-AHP analysis shows that the usefulness of information quality, the personalization of service quality, and the security of system quality are the significant factors and the stability of system quality was a secondary factor.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.20 no.4
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• pp.763-768
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• 2016

IT is the information in government/public policy and technological trends in the industry's R&D has a direct impact on its investment decision making of the very important information. Due to the nature of the information in this technical trend because essential information on open public data the technology by government departments and public institutions that are responsible for producing, on an ongoing basis. In this paper, it was confirmed through the experiment that the method and the possibility to integrate the technology trend information provided by the various agencies can be diagnosed as a maturity level. Also we propose a data collection and processing, storage, optimized service for technical maturity of diagnostic methods. The proposed method determines the overall system configuration and service data ITFIND overall maturity level diagnosis is enabled by leveraging the collected. In addition, through the compensation is considered to be able to proceed to a more accurate diagnostic level.

• Journal of the Korean Society for Railway
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• v.10 no.6
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• pp.766-771
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• 2007

In this research, we were going to make the function which can forecast the operating cost of metropolitan railroad that is performing a role of assistant highway within the city. In order to do this, based on service records of subway line 1st to 8th in Seoul, we extracted 23 variables which can affect to the operating cost, and we selected the final variable for estimate the function of operating cost from correlation among variables and influence analysis. Then, we performed regression analysis by stages using final variable. 6 independent variables are chosen for presuming the operating cost, and we obtained the final 3 variables (quantity of holding motor cars, peak quantity of possessed motor cars, and quantity of stations) as a result of regression analysis. Through this research, function of operating cost of metropolitan railroad has better applicability than existing preliminary validity, and it is used by further preliminary validity investigation and master plan or validity investigation which is accompanied by operation designing, thus we expect that it could make a great contribution to the priority order of investment for metropolitan railroad or process of policy decision.

• The Journal of Society for e-Business Studies
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• v.20 no.2
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• pp.93-106
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• 2015

Providing trading partners with personal information to establish an e-commerce financial transaction is inevitable. Most e-commerce companies keep personal information and transaction data for user's convenience and develop additional services as their applications. However, keeping personal information increases the likelihood of identity theft causing direct or indirect damage while it may simplify repetitive financial transactions. This study introduces risk management methods based on quantitative and qualitative analysis including demand-supply curve model and Gordon & Loeb model to analyze the risks for security management. The empirical analysis with survey results from KISA (Korea Information Security Agency) shows that the root cause of different statistics of personal information leakage incidents according to core business of internet companies is the difference in their Loss Expectancy caused by them. Also we suggest disciplinary compensation and higher standard for personal information protection as a solution to prevent the variation of investment on it between individual companies.

• Journal of Digital Convergence
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• v.11 no.4
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• pp.25-33
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• 2013

In this paper, various definitions of IT Governance and its elements are reviewed. It seems that generally, there is no big difference in definitions and the elements of IT Governance among researchers. However, it is found that some variables which are not appropriate for its definition were used in many IT Governance research. It is also found that IT Governance research in foreign countries have been focused on structure, process, and relational mechanism. I think that the primary goal of IT Governance should be building an effective IT management system. If desirable structure and principles for IT management are established and observed strictly, we can expect desirable behavior in IT management. As a result, expected outcomes and benefits through IT investment could be possibly realized. Therefore, IT Governance research should be focused on building IT Governance systems. This paper suggests a framework for the future IT Governance research.

• Korean Journal of Construction Engineering and Management
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• v.19 no.2
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• pp.25-37
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• 2018

In recent times, private sector allocates the risk between private sector investors in terms of equity transaction and agreement transaction. The additional risk-allocation have made the cash flows of private sector investors fluctuated and some of the PPP projects delayed. Therefore, analyzing the impact of the risk reallocation between private sector investors on their cash flows is critical for encouraging the private sector participants. In this study, a model to evaluate the financial viability of PPP project is developed based on the discounted cash flow analysis. The model can analyze the variability by equity and agreement transaction by identifying key variables of equity transaction, influence factors of agreement transaction, and relationship between the transactions and investor's profitability. It is expected that the private sector can determine the investment decision for PPP projects when the risk reallocation is occurred.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.16 no.5
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• pp.38-48
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• 2017

Link attributes, such as speed, occupancy, and flow, are essential factors for transportation planning and operation. It is, therefore, one of the most important decision-making problems in intelligent transport system (ITS) to determine the optimal location of a sensor for collecting the information on link attributes. This paper aims to develop a model to determine the optimal location of a sensor to minimize the variability of traffic information on whole networks. To achieve this, a network sensor location model (NSLM) is developed to reflect discrete characteristics of data collection. The variability indices of traffic information are calculated based on the summation of diagonal elements of the variance-covariance matrix. To assess the applicability of the developed model, speed data collected from the dedicated short range communication (DSRC) systems were used in Daegu metropolitan area. The developed model in this study contributes to the enhancement of investment efficiency and the improvement of information accuracy in intelligent transport system (ITS).