• 기술혁신연구
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• 제22권4호
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• pp.57-88
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• 2014

글로벌 수준에서의 환경, 경제, 사회적 차원의 거대한 도전은 이제까지의 이윤추구 위주의 기업 활동에 근본적인 질문을 제기하고 있다. 기업은 경제적 주체임과 동시에 사회적, 환경적 책무를 가진 사회적 주체로 인식되고 있다. 특히 사회-기술 시스템 전환을 지향하는 기업 활동이 새로운 현상으로 발흥함에 따라 기업의 정체성, 활동 동기와 비즈니스 모델 진화에 대한 기술혁신 관점에서의 확장된 논의가 요청된다. 본 논문은 지속가능한 시스템 전환에 있어 기업의 역할에 주목하고, '전환지향적 기업' 개념을 제출함으로써 기존의 경제적 관점에서만 고려되어온 기업의 개념을 사회적 문맥 하에서 재해석하려는 목적을 가지고 있다. 본 논문은 기업이 전환활동에 참여하는 동기, 비즈니스 모델의 유형 및 전환을 위한 조직 및 전략 등에 대한 기존 논의들을 검토함으로써 전환지향적 기업 활동의 새로운 범주의 이해에 기여하고자 한다. 이론 및 사례에 대한 문헌연구를 통해 시스템 전환을 지향하는 비즈니스 모델 혁신의 유형을 크게 기술적 혁신, 조직적 혁신, 사회적 혁신의 세 가지 차원으로 구분하고 각 유형별 특징을 도출하였다. 또한 전환지향적 기업 활동을 전개함에 있어 기술(인지)적, 조직적, 시스템적 차원에서 장애요인에 직면할 수 있음을 지적하고 이를 극복하기 위해서는 장기적 관점에서의 기업전략과 시스템 전환을 지원하는 정책노력이 필요함을 주장하였다.

• 전자공학회논문지
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• 제51권6호
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• pp.26-33
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• 2014

LTE-A (Long Term Evolution-Advanced) 이후 무선 통신 시스템에서는, 시스템 전송률의 향상을 위해 증가한 개수의 입출력 안테나를 사용하는 MIMO (multiple-input multiple-output) 시스템이 활용될 것이다. 이러한 증가한 개수의 안테나 어레이를 사용하는 경우, 채널 정보의 궤환에 있어서 과도한 오버헤드가 문제가 될 수 있다. 본 논문에서는 이러한 상황에서 채널 정보의 궤환 오버헤드를 줄이기 위한 방안과, 특히 수신단에서 두 개 혹은 그 이상의 수신 안테나를 사용하는 다중 랭크 전송시의 적용 방안을 제안한다. 수신단에서 송신단으로 일시에 궤환되는 정보의 양을 줄이기 위해 안테나 어레이를 분할하여 추정하는 채널을 기반으로 특이값 분해 (SVD, Singular Value Decomposition)를 활용하는 빔포밍 방안을 제시한다. SVD의 연산과정의 특성 상, 분할된 행렬에 대한 SVD 연산은 원 행렬의 특성을 상실시킬 수 있으므로 이에 대한 대응 방안에 대해서도 설명한다.

• 정보학연구
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• 제5권1호
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• pp.157-171
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• 2002

e-Marketplace는 B2B 거래의 한 종류로서 인터넷상에서 불특정 다수의 공급자와 수요자(N:N)간 비즈니스 거래를 유발시켜 주는 가상의 시장인데 전세계적으로 특정 산업에 한정된 수직적인 e-Marketplace와 특정 산업과 관계없는 수평적인 e-Marketplace형태로 발전되고 있다. e-marketplace는 구매자와 판매자에게 제공하는 이점들 때문에 놀라운 속도로 증가하고 있다. 구매자입장에 e-marketplace는 새로운 공급업체를 물색하는 과정에서 들어가는 구매비용을 낮출 수 있다. 공급업체의 경우 e-Marketplace는 판매비용을 낮추고 새로운 고객에게 물품을 납품할 수 있는 기회를 제공한다. 이에 e-marketplace 기업들도 분명한 비즈니스모델로서 경쟁력 있는 업체만이 생존할 것이다. 이러한 생존에서 살아남기 위해서는 치열한 경쟁을 이겨내야 한다. 이에 대한 구매자와 판매자의 역할이 무엇인지를 살펴 보는 것이 본 연구의 목적이다.

• 통상정보연구
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• 제7권3호
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• pp.195-212
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• 2005

International trade has been changed from traditional trade to e-trade due to the fast expanding of information technology like e-marketplace, EDI (Electronic data interchange) using Internet since mid of 1990's. e-Trade, as a new trade method, could handle every trade procedure such as market research, contract, customs clearance, logistics and payment using IT like internet without restriction of time and space. The evolution of transaction-based business model is upon us. The business models of many e-Marketplace in their early stages have typically been based on transaction fees. Many e-Marketplaces have even called out transaction revenues as a core element of their business plans. The transaction business represents the most simple of business models, but it does not provide a long-term sustain able advantage. For buyer's convenience, wide selection and test price hold appeal. For suppliers, the extended global market reach and direct access to customers and consortiums of customers is powerful. To maximize leverage of these new e-marketplace, you must from both a buyer perspective as well as a supplier perspective. Also required is a strategy that takes in account all of the various e-Marketplace transaction standards and one that allows the easy accomodation to new e-marketplace as the market change. These new e-marketplace will need to be factored into the sales channel strategies. To be successful, integration with these e-marketplaces should occur at a complete business process level. This study would suggest on the role of buyers and sellers for e-trade which could maximize effect of e-trade in order to cope with rapid changing IT environment and global trade environment. Therefore, this study suggests top priority tasks for implementing on the specialization strategy of e-trade process.

• 유통과학연구
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• 제10권7호
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• pp.23-31
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• 2012

The purpose of this study is to investigate existing world economic science theories and concepts of sustainable development as well as create original system of criteria and indicators to assess potential and conditions for sustainable development from a regional perspective and based on the above justify proposals for public authorities to improve methods of economic regulation for regional development. To achieve the goal evolution process of existing theories and concepts of sustainable development and "green growth" have been studied in terms of its adaptation to the spatial development of Kazakhstan, comparative dynamics of natural resources consumption in the Asia-Pacific region and Kazakhstan were investigated as well. Methodology. World best theory and practice methods for assessment of the level of sustainable development of the country and some of its territories were also studied. We selected the best system of criteria and indicators for assessment of economic, social and environmental sustainability of regional systems. Methods offered in this article are based on traditional and new factors of economic development and conditions for operation of regional systems. Indicators are chosen with a glance to basic goals for future development of regions in Kazakhstan. It is recommended to use two levels of methodology offered by author, namely national and regional, and at the local level later (districts, municipalities, cities). The results. Method offered by the author has been tested based on materials and statistics of regions in Kazakhstan. Suitability and usability of the proposed system of criteria and indicators for measuring of economic, social and environmental sustainability of regional systems was proved. Based on this analysis it was found out that there are regions in Kazakhstan that differ from each other by most of key indicators of sustainable regional development and this tendency is increasing. Conclusions and recommendations. As a result of this analysis, the authors have substantiated a number of proposals on methods of analysis to be used, improvement of methods of regional development, implementation of institutional reforms, as well as improvement of regional statistics. This article provides recommendations that can be successfully used in the management practices by public authorities to implement a new regional strategy focused on sustainable development in future.

• 품질경영학회지
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• 제45권4호
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• pp.629-648
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• 2017

Purpose: The world faces a great turning point fundamentally rebuilding the future, and human lives, by embracing the 4th industrial revolution era. This paper aims to seek new and various business models in the 4th industrial revolution era, and to examine the evolution of quality management in the changing of the industrial ecosystem. Methods: This paper examines the various strategies of approaching the 4th industrial revolution in Germany, the USA, Japan, China, and Korea. This paper also draws detailed items by classifying the six major items of Malcolm Baldridge into large, medium, and small scale classifications, researches items from the technical perspective by applied fields, and the four major factor perspectives of quality management, as well as analyzes the relevant items in a multidimensional method. After a questionnaire survey targeting 200 quality experts was conducted, the important quality management factors were selected by applying the Analytic Hierarchy Process (AHP) method. Results: The importance of the general criteria was analyzed in the order of customers, MAKM (measurement, analysis, and knowledge management), workforce, strategy, operations, and leadership. As for the importance analysis results of the secondary subcriteria, the following items are highly analyzed: senior leadership, searching business model's innovation opportunity, customer satisfaction improvement, big data utilization, systematic management of workforce, and, planning and design quality. Conclusion: In the era of the Internet of everything, when complexity increases, this study presented a quality management direction suitable for new business methods challenging existing orders by drawing on quality management priorities.

• The Plant Pathology Journal
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• 제28권2호
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• pp.123-136
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• 2012

Diseases caused by begomoviruses (family Geminiviridae, genus Begomovirus) constitute a serious constraint to tropical and sub-tropical agro-ecosystems worldwide. In recent years, they have also introduced in temperate regions of the world where they have great impact and are posing a serious threat to a variety of greenhouse crops. Begomoviral diseases can in extreme cases reduce yields to zero leading to catastrophic losses in agriculture. They are still evolving and pose a serious threat to sustainable agriculture across the world, particularly in tropics and sub-tropics. Till recently, there have been no records on the occurrence of begomoviral disease in South Korea, however, the etiology of other plant viral diseases are known since last century. The first begomovirus infected sample was collected from sweet potato plant in 2003 and since then there has been gradual increase in the begomoviral epidemics specially in tomato and sweet potato crops. So far, 48 begomovirus sequences originating from various plant species have been submitted in public sequence data base from different parts of the country. The rapid emergence of begomoviral epidemics might be with some of the factors like evolution of new variants of the viruses, appearance of efficient vectors, changing cropping systems, introduction of susceptible plant varieties, increase in global trade in agricultural products, intercontinental transportation networks, and changes in global climatic conditions. Another concern might be the emergence of a begomovirus complex and satellite DNA molecules. Thorough understanding of the pathosystems is needed for the designing of effective managements. Efforts should also be made towards the integration of the resistant genes for the development of transgenic plants specially tomato and sweet potato as they have been found to be widely infected in South Korea. There should be efficient surveillance for emergence or incursions of other begomoviruses and biotypes of whitefly. This review discusses the general characteristics of begomoviruses, transmission by their vector B. tabaci with an especial emphasis on the occurrence and distribution of begomoviruses in South Korea, and control measures that must be addressed in order to develop more sustainable management strategies.

• 한국통신학회논문지
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• 제30권8B호
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• pp.569-580
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• 2005

차세대 이동통신인 WCDMA서비스는 시장 불확실성, 유효수요 부족, 급격한 기술진화, 사업의지 및 전략 미흡, 경쟁서비스와의 차별성 부족, 킬러 애플리케이션 부재 등으로 인하여 국내 시장성장이 지연되고 있는 실정이다. 이에 본 연구에서는 WCDMA의 본격적인 시장활성화를 위하여 시장확산과 마케팅전략의 영향요인을 분석하고자하였다. 이를 위해 전문가 조사를 통하여 WCDMA 시장확산을 위한 성장의 동인이 되는 촉진요인과 해결과제가 되는 장애요인을 도출하였다. 그리고 설문조사를 바탕으로 WCDMA 마케팅전략 결정의 영향요인이 되는 이용요인, 지불의사수준, 킬러 애플리케이션, 선호 단말기, 유망 고객군을 규명하였다. 이를 바탕으로 WCDMA의 고객전략, 요금전략, 서비스 및 단말기 제공전략, 포지셔닝전략 등을 중심으로 마케팅 전개방향을 제시하였다.

• Journal of Information Technology Applications and Management
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• 제20권4호
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• pp.235-247
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• 2013

The evolution of information technology and proliferation of hospital management and managerial applications of computing has led to change in the characteristics, uses and evaluations of software for the hospital management. With the growing proliferation of microcomputer use and the value-added for management strategies, more and more software has been massively developed, produced and distributed for the hospital industry. The user is faced with an increasingly difficult choice in the evaluation and selection of software. For many reasons, users frequently must rely on expert evaluations of the technical functions and quality of software. The objectives of this study are to provide selection criteria for an Electronic Medical Record (EMR) and to develop an evaluation framework for the Hospital Information Systems. The major findings of our study are as follows (1) the identification of EMR evaluation characteristics (2) the design and development of EMR selection model and (3) the evaluation of the importance for EMR characteristics using Analytic Hierarchy Process (AHP). We identify 6 characteristics and 22 sub-characteristics of the EMR, calculate their weights, and decide the best configuration. Especially, the AHP methodology can be applied to gather knowledge from multiple experts. Because AHP can 1) facilitate the participation of multiple experts 2) increase group productivity and therefore result in both quantitatively and qualitatively superior outcomes than that of a single individual's work 3) provide a mechanism for reconciling conflict from multiple expert 4) validate the acquired knowledge, providing consistency of facts, and 5) enhance the accuracy reliability of the acquired knowledge increase through of the reliability provided by consensus across multiple experts. Although some further research is required, the proposed model can be regarded as a basis for the selection of EMR.

• ETRI Journal
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• 제37권3호
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• pp.450-459
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• 2015

Small cell networks, as an important evolution path for next-generation cellular networks, have drawn much attention. Different from the traditional base stations (BSs) always-on model, we proposed a BSs on-off model, where a new, simple expression for the probabilities of active BSs in a heterogeneous network is derived. This model is more suitable for application in practical networks. Based on this, we develop an analytical framework for the performance evaluation of small cell networks, adopting stochastic geometry theory. We derive the system coverage probability; average energy efficiency (AEE) and average uplink power consumption (AUPC) for different association strategies; maximum biased received power (MaBRP); and minimum association distance (MiAD). It is analytically shown that MaBRP is beneficial for coverage but will have some loss in energy saving. On the contrary, MiAD is not advocated from the point of coverage but is more energy efficient. The simulation results show that the use of range expansion in MaBRP helps to save energy but that this is not so in MiAD. Furthermore, we can achieve an optimal AEE by establishing an appropriate density of small cells.