• Journal of Information Technology Applications and Management
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• 제23권1호
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• pp.79-96
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• 2016

As numerous security breaches on a variety of information assets such as personal information, corporate secrets, computer servers, and networks have occurred, information security has emerged as a critical social issue. However, researches on economically rational information security decision-making have been few. Such researches are especially rare in South Korea where information security is considered to be a discipline of engineers. This study aims to identify the preferred themes and methodologies of information security economics research in the field of information systems by reviewing papers published in Management Information Systems Quarterly (MISQ), Information Systems Research (ISR), European Journal of Information Systems (EJIS), Management Science (MS), and Information and Management (I&M). We hope that the results of the study will be helpful in rational managerial or policy decision-making for practitioners and suggest future research topics for researchers.

• 디지털융복합연구
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• 제15권4호
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• pp.35-42
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• 2017

정부는 공공부문 정보화사업의 체계적인 추진과 더불어 정보화사업에 대한 효율성을 강화하기 위하여 정보화사업을 추진하는 경우 반드시 정보화전략계획수립을 의무화하고 있다. 그러나 정보화계획수립 필요성이 높은 사업임에도 명확한 판단기준의 부재로 정보화계획수립 없이 사업이 진행됨으로써 정보화사업 추진의 타당성이 낮은 실정이다. 본 연구는 공공부문 정보화사업에서 정보화전략계획수립의 실효성을 담보하기 위해 정보화전략계획수립 의무화대상을 명확히 판단하기 위한 판단기준을 마련하고자하는데 그 목적이 있다. 이를 위해 본 연구에서는 델파이방법을 통해서 공공부문 정보화사업의 정보화전략계획수립 의무화를 결정하는 결정요인과 판단모델을 설정하였다. 또한, 설문조사를 통해 정보화전략계획수립 의무화 판단모델에서의 4가지 결정요인들에 대한 타당성과 각 결정요인별 세부적인 판단기준을 파악하였다. 최종적으로 전문가집단에 의한 FGI를 통해서 설문조사 결과를 분석하고 정보화전략계획수립 의무화 대상 판단기준(안)을 제시하였다. 한편, 본 연구결과는 정부차원에서 정보화전략계획수립 의무화에 대한 정책결정과 예산작성지침으로써의 활용될 수 있을 것이다.

• Journal of Power Electronics
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• 제16권6호
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• pp.2284-2293
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• 2016

With the rapid development of clean energy, photovoltaic (PV) generation has been utilized in the harmonic compensation of power systems. This paper presents a novel multi-function PV micro-inverter with three stages (pseudo-two-stage). It can inject active power and compensate harmonic currents in the power grid at the same time. In order to keep the micro-inverter working under the maximum allowable output power, an optimized capacity limitation strategy is presented. Moreover, the harmonic compensation can be adjusted according to the customized requirements of power quality. Additionally, a phase shedding strategy in the DC/DC stage is introduced to improve the efficiency of parallel Boost converters in a wide range. Compared with existing capacity limitation methods, the proposed strategy shows better performance and energy efficiency. Simulations and experiments verify the feasibility of the micro-inverter and the effectiveness of the strategy.

• 경영과정보연구
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• 제5권
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• pp.185-209
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• 2000

A review of shows that past research has focused predominately on foreign market entry strategy issues in relatively well-established firms. These studies have either ignored venture firms or have failed to treat these firms separately. Only recently, researchers have broadened their search to include aspects of the foreign market investment of the venture. The purposes of this study are to identify and explain the impact factors such as ownership specific advantage, transaction cost, and location specific advantage on the choice of foreign market entry strategy for venture firms. To find the perceived the foreign market entry strategy and determinant factors, 130 venture CEOs from the computer and communications equipment industries were asked to describe their venture's foreign market entry strategy through 17 questionnaire items on competitive method. Using factor analysis, the six determinant factors were categorized. To test the relationships between the foreign market entry strategy and factors such as ownership specific advantage, transaction cost, and location specific advantage, the data collected by questionnaire from 92 ventures. The main results of this research are as follows. First, the factors of ownership specific advantage have partially significant impact on the foreign market entry strategy of venture firms, Second, the factors of transaction cost have significant impact on their foreign market entry strategy. Third, the factors of location specific advantage have significant impact on their foreign market entry strategy. This study has produced evidence to demonstrate that the foreign market entry strategy profile of venture firms can be distinguished from those of relatively well-established firms. An expanded study would allow for stronger conclusions regarding the relative explanatory power of individual variables in the method. Additional research is also needed to examine other determinant variables connecting foreign market entry strategy.

• 정보관리학회지
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• 제24권4호
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• pp.173-189
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• 2007

정보시스템을 사용하는 이용자들의 만족지수를 측정함으로써 시스템 투자 대비 효과를 정성적으로 측정할 수 있을 뿐만 아니라 향후 시스템의 효율성 및 시스템 개선노력을 위한 방안도 도출할 수 있다. 본 연구에서는 정보시스템의 이용자만족지수 모델을 제안하고 대표적인 정보시스템들의 이용자만족지수를 측정함으로써 이들 시스템 운영자 및 관리자들에게 시스템 만족도 제고 및 효율성 향상을 위한 개선방안을 제시하고자 한다. 본 연구의 수행을 위해 대표적인 정보시스템들을 대상으로 웹 설문조사를 실시하였으며, 분석결과를 바탕으로 만족지수를 산출하고 Matrix 분석을 통해 시스템 개선방안을 도출하였다.

• 한국정보시스템학회지:정보시스템연구
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• 제23권1호
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• pp.29-52
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• 2014

As the advance of multi-platform and multi-channel online services, brokerages are now offering three representative online trading systems - HTS(Home Trading Systems), WTS(Web Trading Systems), MTS(Mobile Trading Systems). In this study we investigated and compared the impact of different systems on the performance of brokerages. Using the panel data of 29 brokerages of 4 periods, we empirically tested the impact of online trading systems and the commissions of trading services. We found out that there exist some differences between the impacts of online trading systems based on the platforms. HTS was identified as the main platform for online trading services. However the role of MTS was also significantly identified while WTS showed no significant impact on the brokerage performances. Commission also showed significant negative impact in case of HTS and MTS platforms. Finally, offering MTS was identified as the significant dummy variable influencing the performance of brokerages. The results provides some implication for the multi-platform strategy for online services.

• 경영과정보연구
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• 제13권
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• pp.27-47
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• 2003

The strategic usages of IT(Information Technology) can convey important competitive advantages with an operational productivity. For this reason, many firms have heavily invested in IT and computing power. However, many companies were getting expected results by IT investment, but some companies had to be satisfied with a poor results. The question of whether or not benefit lead to expected performance is not easy to answer. The purpose of this study was to investigate the relationship among IT strategy, IT investment, and IT performance to resolve this problem. The 147 questionnaire responses completed by IS managers in manufacturing sector was conducted for a test of research hypothesis. ANOVA was used to investigate the relationship among three constructs and six factors. An operational performince of fitted group between IT strategy and IT investment was higher than not fitted group(H1). And also an competitive performance of fitted group between IT strategy and IT investment was higher than not fitted group(H2). The study shows a positive relationship between IT strategic orientation, IT investment direction, and performance of IT. The research results provide empirical evidence that supports the research hypothesis that closer fit between IT strategies and IT investment directions does lead to increase operational and competitive performance of IT.

• 경영과정보연구
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• 제27권
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• pp.53-69
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• 2008

In this paper we analyse performance of value strategy and moving average method among the non-financial listed companies whose fiscal year ends at December in the Korean Stock Exchange between 1996 and 2005. And we analyse combination investment performance of value investment and moving average method. After the analysis objective enterprises divide with the value stock and the growth stock, in accordance with moving average method we divide ascending stock and descending stock. And we compose 6 portfolios with combination of value stock, growth stock, ascending stock and descending stock. Using the difference of investment performance of these portfolios, when fundamental analysis and technical analysis method all considering we measure investment performance. The major findings of this research are as follows: First, the value strategy of buying value stocks and selling growth stocks were effective in the long-term investment. Second, using the moving average method, technical analysis were effective in the case of the short-term investment. Third, the portfolios combined fundamental analysis and technical analysis were more effective than investment performance of technical analysis.

• 경영과정보연구
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• 제3권
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• pp.257-285
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• 1999

Korea Postal Service(KPS) nowadays lies in competitive environment with alternative business such as door-to-door delivery service. Customers began to complain about postal service quality and ask the government to reform a public firm through management innovation. But, Korea Postal Service has not met the break-even point between it's revenue and expenditure because the service is under the government system and cannot independently make major decisions on products, pricing, services, personnel management, financial policies and etc. The objective of this study is to provide marketing planners and practitioners with some guidelines when they establish marketing strategies and to help marketers on theories and practical instructions about postal service marketing when they interact with customers. I. A field survey on both customer satisfaction and internal staff satisfaction was conducted to get some ideas for the marketing strategy planning. II. Practical guidelines and instructions were made for marketers to communicate with customers in various areas such as pricing, product, service demand, marketing channel, promotion, and etc. III. Some suggestions on marketing policies for planners and mangers in the marketing strategy were described including personnel resource as well as physical resource. IV. Special issues on small packet market and direct mail market were discussed and some alternative solutions were proposed. V. Database marketing strategy was emphasized to get new business opportunities such as direct mail, and to provide differential services to customers as much as their contribution into the profitability for KPS. VI. Cyber Post Office should be constructed on Internet to provide new services which are combined with physical material flow and information technologies.

• 경영과정보연구
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• 제24권
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• pp.73-75
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• 2008

The purpose of this study is to propose the human resource management strategies of non-standard workers that can contribute to accomplishing both corporate social responsibility and business purpose in efficient and effective ways. For the purpose, this researcher investigated circumstances under which Korean companies are using non-standard workers and systems related to those workers. In Korea, the Non-Standard Workers Protection Act was enacted and revised, and became effective on July 1, 2007. The main provisions of the act are as follows. First, the systems of discriminatory treatment prohibition was legally stipulated, Second, restrictions on overwork for fixed-term and part-time employees and the written statement of working conditions were compelled. Third, only 26 kinds of jobs were permitted for worker dispatch in accordance with positive list system. To achieve their business purpose, companies often use standard workers, but sometimes non-standard workers unavoidably in accordance with their business strategy. This study propose main human resource management strategies of non-standard workers such as determining the scope of jobs, strengthening legal and systematic human resource management, improving human relations, extending the grievance procedure and converting non-standard workers into standard ones.