• 한국IT서비스학회지
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• 제9권1호
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• pp.91-111
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• 2010

An efficient industry structure is essential for competitive IT Service industry in a global world. The purpose of this research is to derive a policy direction paradigm for strengthening IT service industry structure. To find an effective policy direction, an in-depth analysis on deep-rooted problems of IT service industry has been conducted. The root-causes of industry problems are found with new perspectives on IT service industry. Past and present policies on IT service industry have been reviewed based on desirable industry behavior. A new policy paradigm and a roadmap for efficient industry policy are suggested. To justify adequacy of new policy direction, global benchmarking has been performed. USA, Germany, and Japan's IT service industry has been reviewed based on global competitiveness and desirable eco-system. And an in-depth analysis has been performed for two big competitors, India and China, The adequacy of the new policy paradigm has been tested, and mostly approved. IT service industry policy needs to be transformed from manufacturing concepts to service concepts, from domestic focus to global focus, from zero-sum policy to positive-sum policy, from supplier focus to market focus, from internal industry itself to co-growth with main industries. etc. The results of this study can be used for policy adjusting and policy making to strengthen IT service industry's global competitiveness and to improve long-term performance of Korean economy. Further in-depth researches with quantitative analysis will be needed to fully justify the adequacy of the derived new policy directions.

• 한국국방경영분석학회지
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• 제28권2호
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• pp.1-19
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• 2002

This study shows the effect of inventory policy change from supplier-based to customer-based. We focus on the service level, cost, and information distortion of the Military Supply Chain(MSC) with System Dynamics. We design MSC model according to field practician interviews by using Vensim. The simulation makes a comparison between supply-based inventory policy performances and order-based inventory policy performances. In order to evaluate the MSC performances, we measure the accumulation of backlog(service level), supply chain cost, and order percentage overshoot(information distortion). The results show that 1) changing inventory policy from supplier-based to end customer order-based gets a good customer service, reduces MSC cost, and prevents information distortion, 2) changing inventory policy from supplier-based to immediate customer order-based reduces a small amount of MSC cost and deteriorates customer service, and 3) supply level is main factor for MSC performances improvement. This study implicates the policy change makes a improvement of MSC performance without introducing information system.

• 한국항공운항학회지
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• 제25권1호
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• pp.11-22
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• 2017

Aviation/tourism industry has a unique characteristic of high inter-dependance between customer and service-provider. It is the mental condition of service-provider that could influence on the attitude of the service-provider. Thus, it is important to manage the mental condition of the service employees to enhance a company's financial performance. This paper tries to analyze the combined model of both policy acceptance and service profit chain(SPC) models. First, service policy acceptance model tells how the service policy acceptance, which consists of policy compliance, trust, participation and policy failure, would influence on SPC model. According to empirical research, it was found that both the employees' policy compliance and the policy trust have a positive significant impact on their participation on service policy. In the policy acceptance model, the employee's voluntary participation based on their trust and compliance of the policy was proven to have a positive effect on increasing job satisfaction and customer orientation. Regarding SPC model, their participation in the policy had the strongest impact among variables on customer orientation. Such results implies the employees' participation on the policy could become the starting point to enhance the customer value.

• 대한예방한의학회지
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• 제17권1호
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• pp.137-147
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• 2013

Objectives : This study aims to report current trend of Mibyeong health policy and service in China from interview of China Technology Research Group. Methods : China Technology Research Group visited Guanganmen hospital, Yanhuang Dongfang Company, Xinjingzhen health center, and Shanghai Shuguang hospital. With an interpreter, We had interviews about Mibyeong health service and policy trend, medical instrument, and research issue. Results :Mibyeong health service was performed based on KY3H system and collaboration with traditional Chinese medicine hospital. Mibyeong health service consists of diagnosis with nine constitutional type, health guide and preventive treatment. Community health center also provide Mibyeong health service, with cooperative treatment of traditional Chinese medicine and western medicine. China's Mibyeong health policy is established by Top-down decision, even though there is not enough evidence for providing health service to consumer. Through constitutional diagnosis, examinations, and treatment, huge data have been stacked; however, assessment and research based on these data are not processed well. Cooperative treatment of traditional Chinese medicine and western medicine is widely provided to patients, and their works are relatively well classified. Conclusions : China plays leading role in Mibyeong service and it seems to be developed more than Korea's. Further study is necessary to establish Mibyeong policy and health service in Korea.

• Journal of information and communication convergence engineering
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• 제8권3호
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• pp.245-250
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• 2010

To support various bandwidth requirements for many kinds of devices such as PC, notebook, PDA, cellular phone, a transcoding proxy is usually necessary to provide not only adapting multimedia streams to the client by transcoding, but also caching them for later use. Due to huge size of streaming media, we proposed the 3 kinds of segmentation - PT-2, uniform, bitrate-based segmentation. And to reduce the CPU cost of transcoding video, we proposed the DQS service policy. In this paper, we simulate the combined our previous two researches that are bitrate-based segmentation and DQS(Degraded Quality Service) policy. Experimental results show that the combined policy outperforms companion schemes in terms of the byte-hit ratios and delay saving ratios.

• 한국IT서비스학회지
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• 제11권1호
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• pp.83-92
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• 2012

The development of science and technology oriented knowledge society accelerates the convergence between scientific theory and industrial technology and increases the complexity problem of social and economic sectors. These cause the difficulty of securing the reliability and objectivity of science and technology policy. These also are barriers of balanced evaluation between rational science and technology policy making, management, and policy coordination. In this regard, Advanced countries in science and technology develops policy support system and promotes the program of evidence-based SciSIP(Science of Science and Innovation policy) together. This paper introduces a new approach developing science service of science and technology policy utilizing business intelligence technology in Korea. Also, it proposes the integration method of policy knowledge base and component-based service supporting S&T policy decision-making process and introduces services case studies.

• 기술혁신연구
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• 제8권1호
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• pp.73-94
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• 2000

The main objective of this research is to examine the spillover effects of technological knowledge from IT industry to other industrial sectors and, based on empirical findings, to draw policy implications and suggest policy directions. To this end, we divide IT industry into IT equipment and IT service, assuming that these two sub-sectors are considerably different each other in terms of technology knowledge flow. Other industries are classified into 17 different sectors based on the KSIC of 1990. As the proxy measure of technological knowledge, the notion of R&D stock is employed. The Input/output(I/O) Table is used to define the inter-industrial flow pattern and to draw the knowledge flow matrix. As the research methodology, cost function model is employed to gauge the spillover effects of technological knowledge of IT industry. Based on the results of analysis, it is found that the economic impact of technology diffusion also exhibits a different pattern between IT equipment and IT service. The diffusion of IT equipment tends to show labor-substitution effect whereas IT service displays labor-creation effect. This fact should be considered in devising industry, education, and labor policy. The expectations from this research are as follows. First, the sectoral pattern, difference between IT equipment and service in particular, identified from this research may shed light on the sector-specific policy direction. It is emphasized that a sector-specific approach, rather than an aggregate approach, is relevant for formulating IT policy. Second, it is expected that the importance of technology diffusion programs and policy measures are recognized among policy makers in IT industry.

• 한국컴퓨터정보학회논문지
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• 제14권10호
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• pp.189-197
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• 2009

웹 서비스 기술이 안정화됨에 따라 기업내 혹은 기업간 웹 서비스들을 통합한 합성된 웹 서비스의 연구가 활발히 진행되고 있다. 또한, 비기능적 속성은 다르지만 유사한 기능을제공하는 웹 서비스들의 증가로 인하여 품질관리는 중요한 이슈로 여겨지고 있다. 품질관리를 위해서는 모니터링 기능이 필요하다. 본 논문에서는 중개자를 통한 합성된 웹 서비스의 품질 모니터링 시스템의 설계를 제안한다. 이 시스템은 OWL-S를 사용하여 합성된 서비스의 프로세스를 명세하며 WS-Policy를 사용하여 다양한 요구사항인 정책(각 서비스 입력 출력값, 품질요소 및 품질요소 값 등)을 명세하여 합성된 서비스 프로세스모델에 첨부한다. 또한, 센서를 이용하여 명세한 정책과실제로 모니터링된 데이터의 값을 비교하여 불일치하면 위반사항이 발생하였음을 웹 서비스 제공자 및 사용자에게 통보함으로서 품질을 관리한다. 제안한 시스템의 검증을 위하여 여행 예약 시스템 예제를 가지고 평균 응답시간과 타임아웃 정책을 적용하여 모니터링한 결과를 보여 준다.

• 한국통신학회논문지
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• 제29권2B호
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• pp.192-202
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• 2004

2본 논문에서는 인터넷 QoS 지원 이동 IP 망에서의 정책기반 네트워크 시스템 설계 및 망관리 시스템 구현 방법에 대해 제안한다. 본 논문의 망관리 시스템은 정책기반 네트워크의 정책서버로서의 역할을 하게 된다. 인터넷 QoS 지원 이동 IP 망에서의 정책기반 네트워크의 전체적인 프레임워크는 크게 응용계층, 정보관리계층, 정책제어 계층, 디바이스계층의 네 계층으로 나뉘어 통합된 관리를 수행하는 구조를 가지고 있으며, 이러한 통합된 망관리 시스템에 적용할 네 가지 범주(access control, mobile IP operation, QoS control, network monitoring)의 정책 구조를 정의하고 이에 따른 동작 절차의 예를 보인다. 실제 QoS 지원 이동 IP 망에서의 정책기반 망관리 시스템의 구현을 위한 설계 방법 및 S/W의 구조와 각 모듈 별 기능에 대해 제시하고 이 망관리 시스템과 각각의 에이전트들과의 원활한 통신을 위해 개발한 SCOPS(Simple Common Open Policy Service)프로토콜의 구조 및 기능에 대해 정의한다. 마지막으로 제안된 인터넷 QoS 지원 이동 IP 망에서의 정책기반 망관리 시스템을 실험실 규모의 테스트 베드에 적용하여 구성하는 방법에 대해 자세히 설명하고 성능평가한다.

• 산업경영시스템학회지
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• 제38권2호
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• pp.91-100
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• 2015

In this study, we propose an efficient two-phase heuristic policy, called an acceptance tolerance control policy, for Infrastructure as a Service (IaaS) cloud services that considers both the service provider and customer in terms of profit and satisfaction, respectively. Each time an IaaS cloud service is requested, this policy determines whether the service is accepted or rejected by calculating the potential for realizing the two performance objectives. Moreover, it uses acceptance tolerance to identify the possibility for error with the chosen decision while compensating for both future fluctuations in customer demand and error possibilities based on past decisions. We conducted a numerical experiment to verify the performance of the proposed policy using several actual IaaS cloud service specifications and comparing it with other heuristics.