• 한국컴퓨터산업학회논문지
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• 제4권4호
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• pp.479-490
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• 2003

컴포넌트 기반 소프트웨어개발 (CBD: Component Based Development)은 재사용 부품을 기반하여 소프트웨어 개발, 수정, 유지보수를 용이하게 지원한다. 따라서 컴포넌트는 강한 응집력과 양한 결합력으로 개발되어야 한다. 본 논문에서는use case와 클래스를 간에 유사성을 통한 클러스터링 분석에 기반 하여 컴포넌트 식별에 대해 연구한다. 컴포넌트 참조 모델과 프레임워크를 제시하여 사례를 통해 검증한다. 컴포넌트 식별 방법은 추출, 명세 및 아키？쳐를 지원한다. 이들 방법론은 기존의 객체지향 방법론을 참조하며 분석에서 구현까지의 추적성을 지원하며 재사용 컴포넌트의 모듈성 지원을 위해 강한 응집력과 약한 결합력을 반영한다.

• 산업경영시스템학회지
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• 제38권4호
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• pp.168-176
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• 2015

Trends of integrating products and services lead to the emergence of Product-Service System (PSS). To implement and embody a PSS solution in new product development, a comprehensive design framework is allowed designers to facilitate the design factors of the PSS in complex business environments. A physical product, containing functionalities for services, is the role of medium between customers and a manufactures. Customers can access those metaphysical interfaces to utilize the product fully or expand its performances. The PSS is aiming to prolong its lifecycle while maintaining its expected quality. Since the quality can be represented as a measure which belongs to user's perspective, guaranteeing certain level of quality can be interpreted to sustaining customer satisfaction. The objective of this paper is to propose a PSS design framework to identify design factors for developing products and services by integrating object-oriented concepts and blueprinting in context of a business ecosystem. The proposed model is developed based on relationship products and services matching with their design factors. The products and the services are then brought together to form a PSS. Functions and processes can be categorized to identify the design factors in different levels using the object-oriented concepts. Objected-oriented concepts provide PSS analysis tools for describing a business process or a workflow process in the PSS. The blueprint is used to identify the relationships between the products functions and the service processes that are offered as part of a job. To demonstrate of the effectiveness of the proposed model, we use a case study involving a smart phone.

• Spatial Information Research
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• 제13권3호
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• pp.239-252
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• 2005

본 연구는 대용량의 공간자료에서 의미 있는 지식을 탐색 및 발견하고, 인터넷 환경에서 공간적 의사결정과정을 지원하기 위한 방안을 설계하였다. 그리고 설계를 기반으로 실험적 원형 시스템(Pilot Tested System)을 구현하여 의사결정자와 분석가 사이에서 특정주제에 적합한 다차원적 분석을 위해 양방향 통신이 가능하도록 공간 데이터 웨어하우스의 눈송이 스키마모델(snowflake schema model)을 활용하였다. 눈송이 스키마는 공간자료와 연계할 경우 기존 스타 스키마모델(star schema model)보다 확장성과 유연성이 뛰어난 분석중심의 설계방안이다. 또한 눈송이 스키마모델의 평가를 위해 백화점 거래사례를 통해 실험적 시스템을 구현하여 평가하였다. 이 시스템의 목적은 목표마케팅 지역설정이며, 의사결정자와 분석가의 양방향통신이 가능한 인터넷상담시스템이다.

• Advances in aircraft and spacecraft science
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• 제7권5호
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• pp.405-423
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• 2020

Non-linear energy sink (NES) is an emerging passive absorber able to mitigate the dynamic response of structures without any external energy supply, resonating with all the modes of the primary structure to control. However, its inherent non-linearities hinder its large-scale use and leads to complicated design procedures. For this purpose, an approximate design approach is herein proposed in a stochastic framework. Since loads are random in nature, the stochastic analysis of non-linear systems may be performed by means of computational intensive techniques such as Monte Carlo simulations (MCS). Alternatively, the Stochastic Linearisation (SL) technique has proven to be an effective tool to investigate the performance of different passive control systems under random loads. Since controlled systems are generally non-classically damped and most of SL algorithms operate recursively, the computational burden required is still large for those problems that make intensive use of SL technique, as optimal design procedures. Herein, a procedure to speed up the Stochastic Linearisation technique is proposed by avoiding or strongly reducing numerical evaluations of response statistics. The ability of the proposed procedure to effectively reduce the computational effort and to reliably design the NES is showed through an application on a well-known case study related to the vibrations mitigation of an aircraft wing.

• 한국조경학회지
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• 제34권2호
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• pp.44-56
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• 2006

The purpose of this study was to analyze user satisfaction for park facilities in Bukhansan National Park and to introduce a new framework of standards for facilities improvement. An initial theoretical model considered possible variables through a case study of user satisfaction for park facilities and eventually 19 variables were chosen. An analysis was conducted of the user's satisfaction based on their expectations before use and the results after use. This expectancy-result disconfirmation was measured for the 19 variables. Statistical methods were applied to determine the reliability of the analysis, the t-test was used to measure disconfirmation between expectations and results, and relationships between the variables were analyzed. The results of the reliability analysis (Cronbach's alpha) were higher than 0.8. Therefore, almost all variables were appropriate for analysis. Statistically significant differences were found between expectations and results for following variables: availability of information facilities and accessibility, convenience of facilities, number of information facilities, appropriateness of information facilities, information offered, safety and convenience. Based on the analysis of the interrelation between variables, it was found that the visitors were more satisfied after their visit than they expected to be. The results of the study suggest which variables make the greatest contributions to facilities maintenance or improvement and which can be adapted to maximize user satisfaction.

• 한국IT서비스학회지
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• 제18권4호
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• pp.171-190
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• 2019

This study comparatively analyzes the cases of CDMA (Code Division Multiple Access) and WIPI (Wireless Internet Platform for Interoperability) to find out the success and failure factors of technology policies in the field of mobile communication industry. For this purpose, the two cases are analyzed through a new analysis framework, which is made by combining System of Innovation with a range of variables derived from precedent studies, such as external environment, institutions, technological system, governance structure, and interactions of actors. The results of analysis show that in the CDMA case, the following factors led to success ; Korea made good use of the external opportunities in the early stage of digital communication technology and adopted a suitable governance structure for the technological system. Main actors in Innovation System had strong will for success and engaged in cooperative interaction. For the WIPI, however, the timing of technology policy was inappropriate and a unsuitable governance structure for technological system was chosen because of path dependence. The Innovation System failded to respond efficiently to the situation where conflicts among actors had intensified, US trade pressure had increased and innovative smartphones emerged. The results of this study provide the practical implications for the success of technology policy; namely it is important to choose a governance structure that suits the external environment and characteristics of technology and to activate cooperative interactions among actors in Innovation System.

• Nuclear Engineering and Technology
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• 제53권4호
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• pp.1224-1235
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• 2021

An integrated waste management approach for irradiated graphite was developed during the European Commission project 'Treatment and Disposal of Irradiated Graphite and other Carbonaceous Waste'. This included the identification of potential options for the management of irradiated graphite, taking account of storage, retrieval, treatment and disposal methods. This paper describes how these options can be assessed using multi-criteria decision analysis (MCDA) for a case study relating to a generic power reactor. Criteria have been defined to account for safety, environmental, economic and socio-political factors, including radiological impact, resource usage, economic costs and risks. The impact of each option against each criterion has been assessed using data from the project and the wider literature. A linear additive approach has been used to convert the calculated impacts to scores. To account for the relative importance of the criteria, example weightings were allocated. This application has shown that MCDA approaches can be used to support complex decisions regarding irradiated graphite management, accounting for a wide range of criteria. Use of this approach by individual countries or organisations will need to account for the specific options, scores, weightings and constraints that apply, based on their national strategies, regulatory requirements and public acceptability.

• Current Research on Agriculture and Life Sciences
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• 제27권
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• pp.59-67
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• 2009

The purpose of this study is to propose the methodology for introducing green infrastructure that can improve the health of citizens by promoting walkability. The methodology is composed of the following three phases: classification of the types of green spaces, selection of core green spaces with two separate analyses, and introduction of the framework of green infrastructure to promote walkability. In the first phase, the classification of the types of green spaces was carried out in order to understand existing distribution pattern of green spaces in study site. In the second phase, walkable blocks were selected by such methods as walkability value. Through these two analyses, all the blocks were divided into three groups according to the ranking figured up the second analyses' results. The blocks in the first group, the group involved in the top 30% and having the greatest ranking, were defined as walkable blocks. In the last phase, a basic frame of the green infrastructure in study site was introduced by connecting the walkable blocks with using other blocks and the green spaces over 1ha. In case study, 28 important green spaces and 35 walkable blocks were selected through the two analysis process. Then, the basic framework of green infrastructure based on the selected 28 important green spaces and 35 walkable blocks was introduced. The methodology applied to this study can be used to get the best selections of the proper green infrastructure in accordance with the purpose of the ecological and recreational local development. In particular, this study will suggest a specific analysis model to use for the ecological and walkable urban planning with green spaces existing in the city.

• 디지털콘텐츠학회 논문지
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• 제8권1호
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• pp.93-106
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• 2007

웹 응용이 급격히 증가하고 있고, 그 구조 또한 매우 복잡해지고 있다. 그러나 사용자가 복잡한 웹 응용 컨텐츠를 항해할 때, 현재 위치를 파악하지 못하거나 또는 원하는 정보를 얻지 못하는 경우가 잦다. 따라서 웹 응용 컨텐츠 항해를 모델링하기 위한 체계적인 접근 방법이 필요하다. 본 연구에서는 웹 응용의 적응하는 문맥-기반 컨텐츠 항해 모델링 프레임워크를 제안한다. 본 프레임워크에서는 항해 분석, 항해 설계, 그리고 항해 실현 둥의 활동을 수행한다. 항해 분석 활동에서는 항해 관점에 초점을 두고 유즈케이스를 사용하여 영역 분석을 한다. 항해 설계 활동은 항해 정보 모델, 프로파일, 그리고 항해 인터페이스 모델을 생성한다. 마지막으로, 항해 실현 활동에서는 웹 응용 메타 모델을 정의하고 웹 페이지 항해 모델과 컴포넌트 항해 모델을 정의한다. 또한 본 연구에서는 항해 모델의 유효성을 검사하기 위한 정형적인 정의와 규칙을 제시한다.

• 벤처창업연구
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• 제16권6호
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• pp.85-105
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• 2021

본 연구에서는 2000년 설립하여 나노기술(Nano Technology)기반으로 나노소재 및 초미립 나노분말을 생산하고 제품화하는 핵심기술력을 보유한 기업인 (주)나노신소재의 사례연구를 하였다. 일반적인 사례연구에서 벗어나 이론에 기반하여 기술경영과 산학협력 이론을 기반으로 사례연구 분석프레임을 설정하였으며 사례를 분석하였다. 본 사례연구에서는 (주)나노신소재를 기업 내부적으로 기술경영(Management Of Technology) 체계 구축과 기업 외부 및 협력적인 측면에서 산학협력(Industry-Academic Cooperation) 활동이라는 두 가지 분석관점으로 분석하였다. 이러한 이론적 기반의 분석틀을 기반으로 기업방문 인터뷰 및 관련 자료 조사 분석을 실시하였다. 사례기업의 연구결과, 기술경영과 산학협력이 기업의 성장단계에 어떠한 영향을 미치는지 다음과 같이 도출할 수 있었다. 첫째, 기술경영의 전략적 활용은 벤처기업의 경쟁우위와 핵심역량을 강화하고 창업 초기 기업의 생존과 성장에 중요한 요소이다. 둘째, 기술경영 및 특허의 전략적 활용과 관리체계 구축은 사업전략의 일원이며 기업성과에 중추적인 역할을 한다. 셋째, 대학의 인적·물적 인프라는 창업 초기 기업의 성장에 영향을 미치며 산학협력의 높은 활용도는 기업의 성장을 촉진한다. 넷째, 기업의 성장단계 중 성장기·성숙기에 있어 지속적인 산학협력 활동은 외부 교류 활성화 및 네트워크 구축에 기반이 된다. 마지막으로 기술경영과 산학협력은 기업의 성장단계별 성장요인이 되는 것으로 나타났다. 본 연구의 시사점은 다음과 같다. 기업이 창업 이후 성장기, 성숙기에 이르는 지속적 발전을 위해서는 초기부터 기술경영 체계를 구축하고 전략적인 기술경영 활동을 추진하는 것이 필요하다. 또한, 기업 외부적으로 다양한 산학협력 활동을 수행하는 것이 중요하다고 할 수 있다. 사례분석 결과 이러한 두가지 주요 활동을 잘 수행한 (주) 나노신소재는 단계별로 위기를 잘 극복하고 현재까지 지속적인 성장을 하고 있음을 알 수 있었다. 본 연구에서는 기술경영과 산학협력의 활용이 기술기반 벤처기업의 각각의 성장단계에 어떠한 가치를 발생시키는지 보여주고 있다. 또한, 이의 적극적 활용은 다른 벤처기업의 성장에도 큰 역할을 할 것이다. 본 사례연구의 결과는 기술창업 벤처기업의 성장연구와 관련 현장 적용 및 활용에 유효한 참고가 될 수 있을 것이다.