• 산업경영시스템학회지
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• 제31권3호
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• pp.1-7
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• 2008

This paper proposes an object-oriented software development guidance and an evaluation index for the productivity related to EJB(Enterprise JavaBeans). EJB is a known successful standard model for LSDO(Large Size Distributed Object). However, there is no comparison research about the performance of EJB 2.0 and 3.0 with same identical platform. Quantitative analysis is supported as a part of LOC(Line Of Code) analysis. There is a limit to develop the updated software with no the specific evaluating index for the productivity of software. This work proposes an specific index for evaluating the productivity of new version EJB on a platform. Base on the result, the specific guidance of the developing software is obtained.

• 한국멀티미디어학회논문지
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• 제21권3호
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• pp.432-440
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• 2018

In this study, we propose a marine character prototype study for development of a marine character as digital contents. This study is a precedent study to build a marine character database with the production of digital contents based on "Jasan-urbo". "Jasan-urbo" is a representative cultural heritage that can highlight the value of Korean marine culture as the first illustrated book of marine creatures in Korea. Therefore, we examined the use value of "Jasan-urbo" through the content approach and looked at the visualization for character utilization and then designed a marine fish species classification standard model. Finally, this study proposed the possibility of discovering prototype sources for digitalization of Korean marine creature's resources.

• International journal of advanced smart convergence
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• 제11권4호
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• pp.149-154
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• 2022

With the development of information and communication technology, information literacy and utilization are emerging as basic skills necessary for modern people. Accordingly, information education is becoming a basic literacy education for a nation. Unplugged computing is in the spotlight as a major educational method of information education. The main advantage of unplugged computing is that it is easy to convey basic theories or principles of computer science to students through play activities without the help of special information devices such as computers and tablet PCs. However, studies on student evaluation on unplugged computing have been very insufficient. In this study, students' evaluation standards are developed to maximize the educational effect of unplugged computing. The evaluation standards consist of four areas: participation, interest, satisfaction, and understanding of concepts. The results of this study can be used as a basic study for student evaluation of unplugged computing in the future.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권5호
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• pp.1343-1356
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• 2013

Cloud computing has emerged as perhaps the hottest development in information technology at present. This new computing technology requires that the users ensure that their infrastructure is safety and that their data and applications are protected. In addition, the customer must ensure that the provider has taken the proper security measures to protect their information. In order to achieve fine-grained and flexible access control for cloud computing, a new construction of hierarchical attribute-based encryption(HABE) with Ciphertext-Policy is proposed in this paper. The proposed scheme inherits flexibility and delegation of hierarchical identity-based cryptography, and achieves scalability due to the hierarchical structure. The new scheme has constant size ciphertexts since it consists of two group elements. In addition, the security of the new construction is achieved in the standard model which avoids the potential defects in the existing works. Under the decision bilinear Diffie-Hellman exponent assumption, the proposed scheme is provable security against Chosen-plaintext Attack(CPA). Furthermore, we also show the proposed scheme can be transferred to a CCA(Chosen-ciphertext Attack) secure scheme.

• 한국문헌정보학회지
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• 제42권1호
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• pp.9-32
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• 2008

이 연구는 국내 공공도서관의 아동서비스를 강화하기 위한 표준 직무모형 개발의 예비연구이다. 이를 위하여 미국, 영국, 일본 국내의 공공도서관 사례를 중심으로 아동서비스의 현황과 특징, 직무를 분석하였다. 그 결과, 아동서비스를 위한 도서관 경영관리, 아동장서의 개발과 보존관리, 아동자료의 정리와 DB관리, 직접적 및 간접적 아동서비스, 도서 및 독서관련 프로그램 서비스, 그리고 지역사회의 유관기관 및 시설과의 연계 협력 서비스 등이 아동사서가 수행해야 할 핵심직무로 밝혀졌다. 이를 논거로 삼아 후속연구에서는 표준 직무모형을 개발할 것이다.

• 한국정보통신학회논문지
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• 제18권4호
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• pp.861-866
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• 2014

국가 연구개발 사업은 그 규모가 점차 확대되고, 대형화되어가고 있어 연구 영역간의 융복합화 등이 활발하게 진행됨에 따라, 보다 객관적이고 공정한 사업선정과 예산관리의 투명성이 담보될 수 있는 시스템구축의 필요성이 대두되고 있다. 본 연구에서는 이기종간의 정보연계를 위한 표준 프레임워크를 제안하고, 이를 기반으로 국가 재정의 예산과 회계를 총괄하는 디지털예산회계시스템과 국가 연구개발 성과관리 및 성과평가를 담당하는 국가과학기술지식정보시스템의 정보연계를 위한 시스템을 고찰하여 연계를 위한 현황과 문제점을 해결하는 표준 정보연계 프레임워크의 활용방안을 제시하고자 한다.

• 대한조선학회논문집
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• 제55권4호
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• pp.361-369
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• 2018

The ship surveyor makes a scheme of reasonable ship operation by examining whether the ship has been properly constructed in accordance with the rule of classification societies and international conventions or whether the facilities of the ship in operation meet the standard stipulated by law. Even though the ship surveyors of classification society generally consist of people who have the skill of design or operation of a ship, it takes a long time to train a surveyor to the maturity level. This paper describes the development of survey simulator based on virtual ship environment that enables the surveyor minimize trial and errors to survey the ships. By using VR(Virtual Reality) based survey simulator, surveyors possibly achieve improvement of competence in survey quality by means of safe and immersive training environment. In order to improve the usability and utility of the VR simulator, the ship 3D model has been generated using 3D CAD model for design and production in shipyard. Through this, we suggested the possibility of consistent use of 3D model as the digital twin of a ship.

• 한국산학기술학회논문지
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• 제8권2호
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• pp.309-323
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• 2007

최근 급격히 확산된 광역 인프라를 기반으로 탄생된 e-Learning 은 학교에서의 교육혁신 및 사회에서의 인적자원개발을 위한 새로운 수단으로 각광받고 있을 뿐만 아니라 디지털 콘텐츠 산업의 주요 핵심으로 등장하게 되었다. 본 논문에서는 e-Learning 소프트웨어의 기반 기술의 특성을 분석하고 e-Learning 소프트웨어의 품질시험 및 평가를 위한 품질특성을 분석하여 e-Learning 소프트웨어 품질 평가모델을 개발하였다. 이를 위해 관련 국제 표준을 도입하여 e-Learning 소프트웨어에 대한 품질평가 체계를 확립하고 품질평가를 위한 평가모델을 개발하였다. 이를 통해, 품질평가를 효과적으로 수행하여 경쟁력 있는 e-Learning소프트웨어 제품의 개발을 촉진할 수 있을 것이라고 사료된다.

• 정보화연구
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• 제9권1호
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• pp.79-93
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• 2012

본 연구는 EA 전문가의 역량을 정의하기 위해 국내외 교육과정을 살펴보고, EA 전문가의 기초적이고 공통적인 역량을 도출하였다. 특히 EA의 다양한 이해당사자들이 공통으로 참조하고 활용할 수 있는 역량을 정의하여 향후의 지속적인 발전모델의 기초로 삼고자 하였다. 본 연구에서는 EA의 공통, 개발, 분석, 관리 등 4개 핵심역량을 정하여 각 역량의 정의를 제시하였으며 경력 단계별(아키텍트, 엔터프라이즈 아키텍트, 수석 아키텍트)로 역량의 중요도를 구분하였다. 본 연구결과는 EA 전문가와 정보화 담당자의 EA 이해도를 제고하고 역량을 강화하기 위한 교육과정의 표준 역량과 커리큘럼 작성에 시사점을 제공할 수 있다.

• 공학교육연구
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• 제20권4호
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• pp.21-27
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• 2017

The purpose of this study is to provide basic data and guideline to STEM(Science, Technology, Engineering, Mathematics) educators who prepare engineering education in elementary and secondary school. For this, this study develops a composition model for engineering education program of elementary and secondary school. To do this, a literature research, experts interview and Delphi survey were conducted. Through the literature research, we extracted the components of model for engineering education program of elementary and secondary school and then made a first draft of the model. The draft was revised by experts while Delphi survey was used to validate the model based on Delphi panels' opinions. The panels for the Delphi survey consisted of 51 experts in the STEM education field. The survey was conducted three different times and importance survey was included in the third stage. The conclusions of this study were as follows: First, the model consist of definition, 4 directions, 4 characteristics, 3 educational goals according to school level, educational contents area and element, teaching and learning method and evaluation method. The educational contents area and element consist of 2 major areas, 7 areas and 18 elements. Second, all components of the developed model were valid in most of the statistics such as mean, standard deviation, the degree of consensus and convergence, and CVR(Content Validity Ratio). Third, importance for education contents area and element according to the school level are analyzed.