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SOA 구현을 위한 온톨로지 기반의 서비스 도출 프레임워크
장효선(Jang, Hyo Sun),신동천(Shin, Dong Cheon),박세권(Park Sei Kwon),류승완(Ryu, Seung Wan) 한국IT서비스학회 2010 한국IT서비스학회 학술대회 논문집 Vol.2010 No.9
현재까지 많은 SOA 방법론들이 제안되고 있지만 대부분의 SOA 방법론들은 서비스를 정의하고 식별하는 데 있어서 기준이 명확하게 제시되어 있지 않아 실제 시스템 개발에 적용하는데 한계가 있다. 따라서 본 논문에서는 SOA 구현을 위하여 서비스 온톨로지를 이용한 서비스 도출 프레임워크를 제안한다. 서비스 온톨로지를 이용함으로써 서비스 재사용성과 유연성을 높이고, 서비스 정의와 식별하는데 있어 구체적인 절차를 제시한다. 본 논문에서 제안하는 서비스 도출 프레임워크를 통해 서비스의 품질과 유지보수성 개선 및 소프트웨어 개발 시간을 단축시키고, 또한 SOA 개발 방법론의 개선에 기여할 것이라 기대된다.
장효선(Hyo-Sun Jang),박세권(Sei-Kwon Park),류승완(Seung-Wan Ryu),신동천(Dong-Cheon Shin) 한국IT서비스학회 2011 한국IT서비스학회지 Vol.10 No.2
Even though several methodologies for SOA(Service Oriented Architecture) have been proposed, in practical aspects most of them have some problems since they fail to propose specific policies in definition and identification of a service. This paper proposes a service modeling methodology, SOMO(Service Oriented Modeling using Ontology), which draws proper services in the process of defining and identifying services, SOMO defines a service ontology based on service definition and characteristics in SOA. The service drawing process consists of 3 steps : requirement analysis, service identification, and service definition, SOMO is expected to increase the degree of reuse and facilitates the definition and search of services by using service ontology. In addition, it clearly allows the definition and identification of services, satisfying the user requirements.
PEMFC시스템의 공기 공급 온도 변화에 따른 중공사형 나피온 막가습기의 성능특성
윤재은(Yoon, Jae-Eun),장효선(Jang, Hyo-sun),황준영(Hwang, Jun-Young),강경태(Kang, Kyung-Tae) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.06
Maintaining proper membrane humidity is crucial to ensure optimal operation of a PEMFC system. A gas-to-gas membrane humidifier is popular technology for external humidification of PEMFC reactant gases. Characteristics of heat and water transfer in shell-and-tube Nafion membrane humidifiers has been experimentally investigated for various dry side inlet temperature of membrane humidifier. The results show that heat flux decreases linearly with dry side inlet temperature of membrane humidifier. The water flux through the membrane varies nonlinearly with the temperature elevation.
상황인식 컴퓨팅 환경에서 동적 서비스 컴포지션 기술 동향 분석
신동천(Dong-Ch eon Shin),장효선(Hyo-Sun Jang) 한국IT서비스학회 2010 한국IT서비스학회지 Vol.9 No.3
A service composition has received much interest to provide users with the ad-hoc, seamless, and context-sensitive services dynamically composed from various networked services in context-aware computing environments. In this paper, with the purpose of guiding trends in the researches for dynamic service composition technologies, we investigate and analyze the major related works. For this, we separate semantic based composition from syntax based composition and then establish the comparison criteria by dividing the service composition processes into 3 steps:definition, construction, and execution.
김은순,장효선,엄대호 충남대학교 농업과학연구소 2008 농업과학연구 Vol.35 No.2
The purpose of this study is to evaluate farmer’s general contents on the current direct payment schemes and to derive some improvement measures, based on the survey data for the three types of direct payment schemes currently executed in Korea; Rice Farmer's Income Support, Early Retirement Aged Farmer's Support and Less Favored Area Direct Payment. In recent years we have introduced diverse direct payment schemes that are expected to have immediate effects in a short term period without enough preparation of the policy, which raises some contradiction between the agricultural policy and the original purpose of the direct payments. The result shows some important revisions should be made related the direct payment schemes, such as farmer's income stability through the improvement of unit payment and the payment length jointed with criteria of the payment, in addition to keeping up multifunctionality of agriculture and enhancing the effect of structural adjustment in agriculture.
金敬植,崔勝寬,寓昔珍,申一卿,朴勝浩,李東熙,李東建,張孝善 호서대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.19 No.-
In this paper, features and efficiencies of the 3D engine are described which has been developed through the research of 3D real time rendering techniques. And an on-line shooting game "3D Fortress" which has been developed using this 3D engine with server technologies is introduced for the techniques and methodology applied in the process of development of the game as well as the features and discussions of its implementation.