• IE interfaces
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• v.25 no.1
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• pp.64-70
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• 2012

In modern society, the importance of inter-enterprise collaboration on supply chain is more emphasizing, depending on the industrial structure is going advanced. Therefore, the studies for advancement of inter-enterprise collaboration are taking, and especially the studies about how IT systems affect those advancement are taking. However, there are a shortage of recognition to each IT systems on B2B collaboration, additionally there is not much study of its application. In this study, we analyze the Performance Model relationship between the level and the importance of IT system for B2B collaboration in small and medium-sized enterprise, and draw a priority order for improvement of IT systems for its effective practical use.

• International Journal of Advanced Culture Technology
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• v.5 no.4
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• pp.20-25
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• 2017

Although the $6^{th}$ industry of agriculture, the subject of this research, is a policy that is implemented nationwide, the result or its performance can vary depending on judgment and basic plan of the local government concerned. To overcome this, support of the central government and provincial governments is important, but each rural family, rural area or management unit also has to grasp the reality fast and overcome it through voluntary participation. In addition, local governments of the nation should operate this project efficiently by implementing required support and policies in each field. Local governments should also promote revitalization of local economy by providing help to rural families and management units that implement the $6^{th}$ industry of agriculture through expert consulting, matching of funding paths, and deregulation.

• Korean System Dynamics Review
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• v.17 no.1
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• pp.25-40
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• 2016

This research aims to identify important variables and their effects on diabetes prevention or progression from prediabetes to diabetic complication using system thinking. Based on the existing studies, we have constructed a causal loop diagram explaining dynamics of diabetes and have found 7 important reinforcing loops and 3 balancing loops in the causal loop diagram. The CLD displays an effect of increasing prediabetes early detection and awareness on diabetes prevention. The findings indicate that the projects in Korea for reducing incidence of diabetes and potential risk of complication have focused on variables which are related only on diabetes even though prediabetes has been a critical point on diabetes prevention and management. Thus, it also concludes that the effect of projects focusing only on diabetes have faced limitation to manage diabetes accordingly.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2000.11b
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• pp.179-188
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• 2000

The purpose of this study is to analysis web sites which relate to housing environment on Internet and to suggest guidelines which are needed in digital life. Data are from key words in 53 web sites searched by housing environmental word such as people, living, town and so on. The results of this study were as follow: The web sites are divided into e-housing community, e-housing management, e-housing workplace and e-housing design. These are the digital life of new type. E-housing community sites make new wired community cross time and space. E -housing management sites provide the useful information of housing environment. E-housing workplace. sites enable us to work in cyberspace and e-housing design sites relate to consulting interior design. The web life style on Internet is common and makes many changes happen in house life and environment.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.52-63
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• 2008

Virtuality is a product of the information age, and as it plays a larger role in the activities of individuals, groups and organizations, the issue of how human behavior varies between virtual and physical space has become one of the most important questions facing the management environment of today. The purpose of this article is to examine how virtuality shapes individuals' social relationships within and outside their work groups. We developed a conceptual framework that explores the links between virtuality and social network based on computer-mediated communication theory and social network theory. Using data from 172 individuals of 42 project teams in 5 global business consulting firms, we tested cross-level hypotheses. The results of hierarchical linear modeling (HLM) indicate that virtuality significantly influences individual's internal tie strength as well as external bridging ties. The results also show the effects of virtual process via CMC vary along with the virtual context.

• Journal of Korean Society for Quality Management
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• v.38 no.1
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• pp.1-9
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• 2010

Service Oriented Architecture(SOA) is an enterprise-scale IT architecture for linking software resources available on the network. SOA is believed to become the future enterprise solution that promises the agility and flexibility by integrating business processes through composition of the software services across enterprises. The first step for SOA construction is to identify the services. In this paper, we present a process-based service identification methodology for SOA through a case study of an IT company. Our methodology is composed of three steps: Processes (business & technical processes) analysis and systems analysis, Service candidates selection, and Service evaluation and construction planning. This framework would be practical and could be accepted to other organizations as it has been developed through the real case.

• Proceedings of the Korean Geotechical Society Conference
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• 2010.09a
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• pp.428-444
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• 2010

After underground excavation being introduced in dometic, many technologies have been storing up. One of them, measurement, has been recognized as an important item under excavation construction. But, unlike a large-scale construction, it was not been treated importantly at the general small-scale structures with poor ordering and original design was unchanged under construction was normal if the problem didn't occur on monitoring. In this paper, the site which safe and economical management as well as shortening construction period was made effectively using measurement result was introduced. Also, the site which was completed safely with analyzing measurement and reinforcement when unusual symptom happened was introduced. Using measurement result effectively will be able to obtain the safety and prevent unnecessary economical loss.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.33 no.4
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• pp.100-113
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• 2010

Manufacturing companies' cost competitiveness with respect to equipment management can be achieved by satisfying additional market demands by their own capacity without purchasing additional equipments. In essence, it can be accomplished by making continuous investigation into bottlenecks and improvement on them. Therefore, equipment performance measure systems should be designed so that they can support manufacturing companies' such endeavors. With the purpose of establishing an effective equipment performance measurement system for detecting and improving bottlenecks, this study (1) suggests some desirable features that such a system should have, (2) evaluates conventional equipment performance measurement systems in terms of their usefulness for the detection and improvement of bottlenecks, and (3) proposes an improved system. We also perform a simulation experiment to demonstrate the limitations of the conventional systems and show how the proposed system can resolve the problems.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2004.05a
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• pp.568-571
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• 2004

본 논문의 목적은 벤처캐피탈(Venture Capitalist)의 투자전략을 게임이론을 통해 분석하고 이해하자는 것이다. 벤처캐피탈은 성장가능성은 높지만 불확실한 벤처기업에 투자하는 전문투자자이다. 벤처캐피탈은 이익을 극대화하기 위해서 성장가능성이 크고 위험관리가 가능한 기업에 투자를 하여야 한다. 하지만, 벤처캐피탈은 일반적으로 제한된 시간과 벤처기업의 속성 때문에 기업에 대한 정보가 부족한 상태에서 투자결정을 내려야 하는 경우가 대부분이다. 투자가 이루어진 후 벤처캐피탈은 벤처기업의 운영 및 기업활동을 감시(Monitor)하고 자문활동(Consulting Activity)을 수행하면서 차츰 기업에 대한 정보를 습득하게 되고 기업의 가치를 판단할 수 있게 된다. 본 논문은 앞에서 기술한 바와 같은 정보 불확실성 상태에서 창업자의 효용(utility)와 벤처캐피탈의 가치평가(value evaluation)를 바탕으로 벤처캐피탈의 투자전략을 게임이론을 통해 분석하였다. 본 논문은 벤처캐피탈이 전환사채형태의 투자를 하는 논거를 밝혀내었다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2005.05a
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• pp.243-247
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• 2005

인터넷의 사용이 증가하면서, DDoS와 같은 네트워크 공격 역시 빠르게 증가하고 있다. 최근 발생하는 네트워크 상의 공격은 특정 호스트에 대한 피해뿐만 아니라, 전체 네트워크의 성능 저하를 유발한다. 이러한 피해를 막기 위해서 효율적인 탐지 기법이 필요하다. 본 논문에서는, 다중 엔트로피를 이용하여 고속의 네트워크 상황에 적합한 탐지 기법을 제시하였다. 제시한 기법은 공격의 발생에 따른 출발지 주소, 목적지 주소, 목적지 포트의 엔트로피를 관찰하여 공격을 탐지한다. 공격이 발생하였을 경우, 각각 의 엔트로피는 정상 상태와 다른 값을 가진다. 또한 공격의 특성에 따라 엔트로피 값들은 서로 다르게 변한다. 이를 이용하여 공격의 종류를 파악할 수 있다.