• 한국디지털정책학회:학술대회논문집
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• 2006.06a
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• pp.139-147
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• 2006

최근 1인 가상커뮤니티가 성숙화 단계에 들어서면서, 이에 대한 많은 연구들이 이루어지고 있다. 특히, 사이버 커뮤니티는 일반 사용자에게 고립감을 벗어나 사회적 관계(social network)를 맺을 수 있는 기능을 포괄적으로 확장시키고, 이용자들에게는 공동의 관심사와 관계 형성의 공간을 제공한다는 점에서 기존 오프라인 커뮤니티와 같은 역할을 한다고 할 수 있다. 더욱이 '카페' 나 '클럽' 중심의 키뮤니티에서 개인형 커뮤니티 추세로 급변하고 있는 최근에는 블로그 사용자가 급증함에 따라 다양한 초점에서 많은 연구가 필요하다. 이에 본 연구에서는 최근 새로운 미디어로 각광받고 있는 개인형 커뮤니티인 블로그 사용자를 새로운 정보기술의 사용자로 파악하여 기술수용모형(TAM)을 기본모형으로 하여 선행연구로부터 도출된 개인특성 변수들에 대하여 실증분석 한다. 본 연구의 학문적 시사점은 기술수용모델이 블로그 사용 환경에서도 적용 가능한지를 검증한 것이고, 기술수용모델 이외의 요소인 주관적 규범, 인지된 즐거움 그리고 자기 유능감이 블로그 서비스 사용에 미치는 영향력을 알아본 점에서 의의가 있다.

• Communications of Mathematical Education
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• v.14
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• pp.61-70
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• 2001

수학은 추상적인 학문이다. '추상'은 몇 개 또는 무한히 많은 사물의 공통성이나 본질을 추출하여 파악하는 사고작용이다. 이렇게 추상된 것들을 모아 분류를 하고 그 다음에 이름을 붙이는 것이 바로 개념이 형성되는 과정이고 수학자가 수학을 하는 과정이다. 이 개념들은 여러 가지 모양으로 결합하여 스키마라고 부르는 개념 구조를 형성하게 되는데, 이 스키마는 수학적 사고를 하는데 매우 중요한 역할을 하여 수학을 개념적으로 이해하는데 도움을 주며, 새로운 지식을 얻는데 필요한 필수적인 도구가 된다. 본 논문에서는 연속적인 수열의 합의 공식에 대하여 학생들이 Skemp가 말한 '관계적 이해'를 할 수 있도록 스키마를 이용하여 문제를 해결할 수 있는 모델과 원주의 스키마를 이용한 생활 속의 문제를 제시하여 학생들이 공식을 암기하기보다는 수학의 구조를 파악하고 연계성을 이해함으로서 능동적인 구성활동을 유발하여 수학에 대한 흥미를 느낄 수 있도록 도움을 주고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.05a
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• pp.377-380
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• 2005

대표적인 소프트웨어 프로세스 심사모델로서 ISO/IEC 15504와 CMMI는 숙련된 전문 심사원을 통하여 소프트웨어 프로세스의 능력수준을 결정한다. 그러나 이들 모델들은 프로세스 측정을 위한 체계적인 메트릭스를 제공하지 않으므로 심사원은 심사대상 프로세스의 정량적인 수준 측정을 위하여 주관적인 판단을 통해 프로세스를 평가해 오고 있다. 본 논문에서는 프로세스의 정량적이고 객관적인 측정을 위하여 기초 메트릭스를 정의하고 ISO/IEC 15504 에서 정의한 프로세스 그룹별 측정 표준 메트릭스를 제안한다. 또한 표준 메트릭스를 조직에 적용하기 위한 프로세스 성숙도 평가 메트릭스를 제시하여 향후 조직의 상태를 체크할수 있는 유용한 가이드라인을 제시한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.05a
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• pp.247-250
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• 2005

본 연구는 국내 공공부문 정보시스템 운영관리 수준을 측정할 수 있는 평가모델을 제시하였다. 이를 위해 국내외 선진사례, 관련 표준, 지침을 분석하여 공공부문 운영관리업무에 공통적으로 적용될 수 있는 11개 업무 분석영역을 도출하였고 각 업무영역의 평가를 위한 평가기준을 제시하였다. 그리고 이를 토대로 공공부문 운영관리 업무에 대한 수준을 측정할 수 있는 평가방안을 제시하였다. 본 연구에서 제시된 평가모델은 특정 이슈 발생시 일부 중앙부처의 요구에 따라 공공기관들을 대상으로 행하여진 단편적인 운영수준 점검 분석 활동들이 국내 실정에 맞게 운영업무 전반에 대한 종합적, 체계적 수준평가를 할 수 있는 기반을 제공하게 하였으며, 기관 내부적으로도 자체평가를 통해 운영관리업무 성숙도 제고를 위한 핵심요소를 손쉽게 식별하고 효율적인 품질향상 활동을 수행할 수 있게 하였다.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.39 no.6
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• pp.576-584
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• 2011

In order to develop a launch vehicle successfully, it is important to estimate development costs accurately but it is also important to plan the annual budget. In this paper, the statistical method was utilized for cost spreading. For cost spread modeling, the suitability of the model by analyzing several statistical models was evaluated and consequently, the beta-distribution model has been selected. In this study, the validity of the annual estimation cost model was verified through the comparison of the actual development cost distribution and the estimating cost distribution of Space Shuttle Main Engine. In addition, this paper estimated the annual budget required for the development of the KSLV-II using currently allocated cost for successful development. It is anticipated that the present cost spread model can be applied to not only launch vehicle development but also other large complex system development.

• Journal of Information Technology and Architecture
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• v.9 no.2
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• pp.155-166
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• 2012

Recently EA(Enterprise Architecture) has been receiving growing attentions again from the public sectors. It is because EA maturity result is reflected to the organization's informatization level and EA maturity ratio has been enlarged. There has been more participation from the Chief Information Officers of the public sectors. EA research in the public sectors has influenced IT environment since the research started in late '90, the legislation work done in '05, and the maturity model developed in '06. However, there are some remaining tasks to solve. EA policy is introduction oriented, its contribution to the consecutive the best UN e-Government rank is limited, and its user-friendly responding system is still lacking. Related research outcomes are rather microscopic focusing only on the models and maturity than implicating on the public policy in a macroscopic manner. In this respect, this study will provide the implication on how EA policy should be. Requirements derived from EA stakeholders and the tasks will be arranged in accordance with its domain, then the performance and tasks will be demonstrated. As guiding EA stake holders and information related officers to setup the EA policy with these results, this study is expected to support information the policy drivers.

• Economic and Environmental Geology
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• v.42 no.1
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• pp.55-72
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• 2009

The timing of hydrocarbon generation and expulsion from source rocks can be evaluated by reconstructing the geohistory of the basin using petroleum system modeling. The Tyee basin is generally considered having a high hydrocarbon generation potential For the southern part of the basin, the basin evolution from a structural and stratigraphic points of view, the thermal history, and the burial history were reconstructed and simulated using numerical tools of basin modeling. An evaluation of organic geochemistry for the potential source rocks and the possible petroleum systems were analysed to improve the understanding of the hydrocarbon charge of the basin. Organic geochemical data indicate that the undifferentiated Umpqua Group, mudstones of the Klamath Mountains, and coals and carbonaceous mudstones in the Remote Member and the Coquille River Member are the most potential gas-prone source rocks in the basin. The relatively high maturity of the southern Tyee basin is related to deep burial resulting from loading by the Coos bay strata. And the heating by intrusion from the western Cascade arc also affects to the high maturity of the basin. The maturation of source rocks, the hydrocarbon generation and expulsion were evaluated by means of basin modeling. The modeling results reveal that the hydrocarbon was generated in all potential source rocks and an expulsion only occurred from the Remote Member.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.6
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• pp.609-619
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• 2017

A Manufacturing Readiness Assessment (MRA) was adapted to prevent the probable ascending expense, poor quality, and delay from the development to production phase and assess the level of manufacturing readiness in 2012. Consequently, there are positive effects on improving the quality to identify the manufacturing risks during the production of military supplies and manage the issues in advance. On the other hand, because the appraisee is becoming accustomed to preparing for MRA checklists tailoring, it was found to intensify the MRA points more than before, which damages the goal of the MRA. This paper proposes the quantitative MRA methodology using MWV (Manufacturing Readiness Level 8 Weighted Value) to define and measure the HOM8, DOM8, ICOM8, and M8RA to reflect the history of MRA, the difficulties of MRA checklists, the intrinsic cruciallity and risk assessment of program, which can overcome the problems mentioned before. This paper shows the MWV of four weapon system programs to be carried out and an analysis of the proposed MRL 8 methodology.

• Journal of the Economic Geographical Society of Korea
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• v.21 no.4
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• pp.303-320
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• 2018

This study analyzes the characteristics of the evolution process of the Gumi National Industrial Complex as well as its external and internal drivers based on the cluster adaptation cycle model. The Gumi National Industrial Complex has made remarkable progress through expansion in spatial and industrial realm and has become a representative IT industry cluster in Korea. It evolved during a growth period from the 1990s, a maturity period from the mid-2000s, and a mature stagnation period from the mid-2010s. But it has now entered a period of decline. While external drivers at the international and national level greatly influenced the Gumi National Industrial Complex in its evolution from foundation-building to maturity, internal drivers such as the outflow of large firms as well as a lack of SME research capacity and institutional base have added to the management difficulties of SMEs in the mature stagnation period. Therefore, in order for the Gumi National Industrial Complex to move into a revitalization period that strengthens resilience against external shocks, it is necessary to enhance the capacity of SMEs by expanding the roles of the central government, local government, and support agencies. In addition, it is necessary to create and embed strong medium enterprises within the Gumi National Industrial Complex, so that the Complex can be reborn as a sustainable innovation ecosystem.

• The Journal of the Korea Contents Association
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• v.9 no.12
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• pp.710-717
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• 2009

The researchers and planners are using patent/paper map system to analyze the research trend, but we can't use the existing analysis system because of the specialty of korean traditional medicine. Thus we deduced the analysis models from preceding research and system and designed 14 analysis models which are composed of basic, detail and complex models. We verified the analysis models using papers which has 'meridian' keyword among 16,000 papers stored in OASIS. From the analysis result, we know that the meridian study has just entered in the maturity and is closely related with other parts of korean traditional medicine as physiology etc. And we verified the proposed analysis model from the comparison with the analysis models of preceding systems. The analysis model will be used for the development of Korean traditional medicine paper map analysis service scenario and system.