• 한국정보기술응용학회:학술대회논문집
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• 한국정보기술응용학회 2002년도 추계공동학술대회 정보환경 변화에 따른 신정보기술 패러다임
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• pp.350-362
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• 2002

높은 가용성 확장성, 시스템 성능의 요구를 만족시키기 위해 SAN(Storage Area Network)이 등장했다. SAN을 보다 효과적으로 활용할 수 있도록, 대부분의 SAN 운영체제들은 SAN에 부착된 물리적 저장장치들을 가상적으로 하나의 커다란 볼륨으로 보이게 하는 저장장치 가상화 개념을 지원한다. 저장장치 가상화의 핵심적인 역할을 하는 것이 바로 논리볼륨 관리자이다. 논리볼륨 관리자는 논리 주소를 물리 주소로 매핑시킴으로서 저장장치 가상화를 실현한다. 이 논문에서는 논리볼륨 관리자를 위한 효율적이고 유연한 매핑 기법을 설계하고 구현한다. 이 논문의 매핑 기법은 특정 시점의 볼륨이미지를 유지할 수 있는 스냅샷과 시스템을 정지시키지 않고 SAN에 디스크를 추가 또는 삭제할 수 있는 온라인 재구성 기능을 지원한다.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 2002년도 추계공동학술대회
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• pp.350-362
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• 2002

높은 가용성, 확장성, 시스템 성능의 요구를 만족시키기 위해 SAN(Storage Area Network)이 등장했다. SAN을 보다 효과적으로 활용할 수 있도록, 대부분의 SAN 운영체제들은 SAN에 부착된 물리적 저장장치들을 가상적으로 하나의 커다란 볼륨으로 보이게 하는 저장장치 가상화 개념을 지원한다. 저장장치 가상화의 핵심적인 역할을 하는 것이 바로 논리볼륨 관리자이다. 논리볼륨 관리자는 논리 주소를 물리 주소로 매핑 시킴으로서 저장장치 가상화를 실현한다. 이 논문에서는 논리볼륨 관리자를 위한 효율적이고 유연한 매핑 기법을 설계하고 구현한다. 이 논문의 매핑 기법은 특정 시점의 볼륨이미지를 유지할 수 있는 스냅 샷과 시스템을 정지시키지 않고 SAN에 디스크를 추가 또는 삭제할 수 있는 온라인 재구성 기능을 지원한다.

• 대한건축학회논문집:구조계
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• 제36권3호
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• pp.129-134
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• 2020

The current evaluation time period for the construction management service is the project completion or after project completion. Therefore, the construction manager has the following problems. First, it is difficult to prepare the evaluation due to the new field movement of the existing participating engineer. Next, the CM work is complex as well as extensive. Therefore, the critical success factors of the construction technology services evaluation are required as a systematic performance standard of CM work. In this study, we extracted the critical success factors that can systematically prepare the evaluation from the early stage of the project through in - depth interviews with experts. And, this study was analyze the priority of each factor by using AHP technique. As a result, the most important factors were related to the systemization of the preparation process, the construction manager work capabilities and practical construction management. And the priorities of all factors were analyzed high in the factors suggested by the owner groups. The results of this analysis are expected to provide the standards that construction management service performer carry out structured management of construction management throughout the project.

• The Journal of Asian Finance, Economics and Business
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• 제10권1호
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• pp.101-109
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• 2023

This study examined the relationships among owner-manager characteristics, e-commerce adoption, and performance of small and medium enterprises (SMEs) in Malaysia. Although the growth of e-commerce was encouraging in many countries, studies of e-commerce adoption among SMEs in developing countries such as Malaysia are insufficient. Furthermore, studies that investigated individual characteristics and e-commerce adoption are still low in number. This study specifically employed the technology-organization-environmental (TOE) framework to develop its research model. The sample was selected by using a non-probability judgmental sampling technique because the desired population frame was unavailable. A total of 111 owner-managers of SMEs were surveyed using online self-administered questionnaires. Subsequently, the data was analyzed through partial least square-structural equation modeling (PLS-SEM). The results revealed significant relationships between owner-manager characteristics and e-commerce adoption, as well as between e-commerce adoption and the performance of SMEs. The findings suggested that owner-manager characteristics played an important role in determining e-commerce adoption among SMEs. Moreover, e-commerce adoption was crucial in affecting the performance of SMEs. This paper provided new insights into factors affecting e-commerce adoption and firm performance. It could further benefit the government and SMEs in strategizing e-commerce adoption and development, especially in the era of Industrial Revolution 4.0 (IR 4.0) and the post-COVID-19 pandemic.

• 전자공학회논문지CI
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• 제48권3호
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• pp.27-35
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• 2011

사용자간 상호작용과 협업 기능을 바탕으로 한 소셜 네트워크 서비스 발달에 따라 이를 교수-학습에 활용하면서 개인 체험 중심의 구성주의와 접목되어 소셜 러닝으로 발전하고 있다. 이를 보다 잘 활용하기 위해서는 N-Screen웹, 스마트폰, IPTV)을 지원하는 커뮤니케이션 모델이 필요하다. 커뮤니케이션 모델은 학습자-교수자-시스템간의 상호작용을 지원하는 것이다. 하지만, 지금까지는 웹기반 이러닝 시스템 커뮤니케이션에 대한 연구가 주를 이루고 있다. 이에 본 연구에서는 소셜 러닝을 위한 서비스 환경을 N-Screen으로 확대하고, 끊김 없는 서비스를 위해 개인의 위치정보를 학습 활동에 활용할 수 있도록 지원하기 위한 커뮤니케이션 매니저를 설계하고 구현하고자 한다. 커뮤니케이션 매니저는 N-Screen 서비스를 위한 학습자의 유스케이스 도출 및 요구 기능을 정의하고, 이를 바탕으로, 커뮤니케이션 기능을 설계한다. 또한, 단말 각각의 서비스 특성을 고려하여, 개인화 위치정보를 반영 할 수 있도록 한다.

• 기술혁신연구
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• 제6권1호
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• pp.215-249
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• 1998

This study empirically examines the relationship between the career orientations of R&D professionals and their demographic characteristics (age, tenure, and education level), affiliated organizations (public and private organizations), reward systems. It further explores the contingent effects of the career orientation fit between leader and members on their performance. The results reveal that : 1) five different career orientations (technical, manager, project, technical transfer, and entrepreneur) are empirically distinguished, 2) technical orientation of R&D professionals is higher in public in private sectors, 3) technical, project, and manager orientation are positively associated with the education level, while technical transfer and entrepreneur orientation are negatively associated with the education level, 4) manager and technical transfer orientation is positively related with age and tenure, 5) the career orientation fit between leader and member is closely related with job satisfaction and organization commitment, and partially related with technical performance, 6) R&D professionals with different types of career orientation exhibit different preference to various rewards. Based on these findings, this study suggests several practical implications for the design of career ladder, mentoring, and reward systems of R&D professionals.

• 로봇학회논문지
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• 제4권1호
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• pp.49-55
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• 2009

The development of IT technology makes the functions and services of robots be integrated, and thus the robots become more intelligent and useful. As sophisticated usage of robots has evolved, direct communication by human language is necessary to increase the efficiency of their usage. In this paper, we propose a conversational interface platform for integrated service robots using MS Robotics Studio. The proposed platform consists of three types of components: a conversation manager to control the flows of the integrated service robots, a user interface to interact with users, and multiple service robots to perform actions or services. For a test-bed of the proposed platform, we build a schedule manager system and confirm the usability through SUS subject test by comparing the schedule manager system with MS Outlook.

• 시큐리티연구
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• 제8호
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• pp.257-280
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• 2004

This study has purpose on revealing with corroborative evidence how police manager's leadership type effects on working attitude of policeman. This study is composed of the introduction in the first chapter, theological consideration of leadership and working attitude in the second chapter, research plan and analysis in the third chapter and finally the conclusion in the fourth chapter. For the political suggestion, the program's operated by police organization can be altered its efficiency by organizing groups applying what kind of leadership to how it wed. Considering to its characteristic of police organization, the leadership is not only important factor effecting on outcome of organization but also core activity achieving the goal of organization to police manager.

• 통상정보연구
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• 제9권4호
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• pp.199-214
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• 2007

This paper examines the international commerce expert capability and business performance in global supply chain management. Based on the analysis of eighty-seven cases, the following results were found. First it was found that CEO's capability of global supply chain management firms and business performance are significantly correlated. Second, supply chain management manager's capability of global supply chain management firms and business performance are not significantly correlated. Third, CEO's capability have more a positive influence business performance than supply chain management manager's capability in global supply chain management firms.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권3호
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• pp.1321-1332
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• 2016

Wireless sensor networks (WSN) are self-organized networks that typically consist of thousands of low-cost, low-powered sensor nodes. The reliability and availability of WSNs can be affected by faults, including those from radio interference, battery exhaustion, hardware and software failures, communication link errors, malicious attacks, and so on. Thus, we propose a novel multi-agent fault tolerant system for wireless sensor networks. Since a major requirement of WSNs is to reduce energy consumption, we use multi-agent and mobile agent configurations to manage WSNs that provide energy-efficient services. Mobile agent architecture have inherent advantages in that they provide energy awareness, scalability, reliability, and extensibility. Our multi-agent system consists of a resource manager, a fault tolerance manager and a load balancing manager, and we also propose fault-tolerant protocols that use multi-agent and mobile agent setups.