• 제목/요약/키워드: aspect of development

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AOSD기반에서 Aspect의 동적결합을 위한 Connector (Connector for Dynamic Composition of Aspects Based on AOSD)

  • 김태웅;김태공
    • 정보처리학회논문지D
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    • 제13D권2호
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    • pp.251-258
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    • 2006
  • 영역지향 소프트웨어 개발 방법론(Aspect-Oriented Software Development)은 소프트웨어의 성능을 향상시키고 유지보수에 많은 이점을 가지는 새로운 소프트웨어 개발 방법론이다. 또한 기존의 프로그래밍 언어가 제공하지 못하는 보안이나 결함 내성과 같은 부가기능에 대해 모듈화하는 방법을 제공하고 있다. 하지만 AOSD기반으로 소프트웨어를 개발하기 위해서는 Aspect를 지원하는 새로운 영역지향 프로그래밍 언어를 사용하거나 레거시 시스템에 Aspect를 적용할 경우에 소스코드의 재 컴파일등과 같은 문제점을 가지고 있다. 이에 본 논문에서는 레거시 시스템에 Aspect를 동적으로 결합할 수 있는 Connector를 제안하고 설계한다. 이를 위하여 Core와 Aspect가 가지는 오퍼레이션에 대한 정보와 XML로 기술된 pointcut정보를 이용한다. 또한 사례연구를 통하여 제안된 Connector를 사용하기 위해 새로운 영역지향 컴파일러가 필요 없고, 레거시 시스템의 수정도 발생하지 않음을 보여 그 유효성을 검증한다.

철도차량 설계대안 선정에 대한 GHG 배출량 기반 환경 경제성 통합평가 사례연구 (A Case Study of Integration Assessment of Environmental Aspect and Cost Aspect Based on GHG Emission for Design Alternative Selection of a Railway Vehicle)

  • 최요한;이철규;이재영;김용기;정우성
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2011년도 춘계학술대회 논문집
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    • pp.606-612
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    • 2011
  • At the product design and development stage, the main criteria selecting a design alternative were performance aspect as well as cost aspect of a product. Ongoing new paradigm shifts such as low carbon green growth, climate change mitigation, sustainable society development urged considering environmental aspect of a product at the product design and development stage. Up to recently, only cost aspect except performance of a product was considered at the railway vehicle design process. Therefore, it is needed to develop a method that may consider environmental aspect of a product at the railway vehicle design process. Lee (2011) proposed that a method of an integration assessment of environmental aspect and cost aspect based on GHG emission instead of based on monetary value. This study conducted that apply the method of Lee (2011) to design alternative selection process of a railway vehicle. From the integrated view of environmental and cost aspect, the reference product and design alternatives are assessed and compared.

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생태적(生態的) 측면(側面)을 고찰(考察)한 하천(河川) 수변공간(水邊空間)의 활성화(活性化) 방안(方案) 연구(硏究) (A study on revitalization of riverfront space in terms of ecological aspect)

  • 한주형;오덕성
    • KIEAE Journal
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    • 제2권1호
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    • pp.21-32
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    • 2002
  • This study aims to find out the way of revitalizing of natural riverfront space in terms of ecological aspect. At the first part, theoretical made in terms of concept, planning aspects and techniques which were main bases for the study. It begins by explaining the concept of ecological riverfront space, the main aspect and techniques of its planning. After this, it analysis eight cases(four cases in Korea, Swiss, Germany, America and Japan) in terms of the objects, planning techniques and the results of development. It continues by making detailed analysis according to four objectives like 'protection from flood', 'quality of the river', 'ecological preservation' and 'active usage of riverfront space'. It ends by evaluating the relationship between objectives and the planning which will be adapted to the future development of riverfront space with ecological aspect. In conclusion, hereafter will propose desirable design-direction for revitalization about riverfront space about ecological aspect design in urban.

효율적인 서비스 시스템 개발을 위한 룰 기반의 관점 지향 기법 (Rule-based Aspect Oriented Approach for Efficient Service System Development)

  • 이우진;최일우
    • 한국산학기술학회논문지
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    • 제16권1호
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    • pp.735-743
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    • 2015
  • 서비스 지향 아키텍처(Service Oriented Architecture)는 엔터프라이즈 애플리케이션 개발 시 유연성을 보장하여, 비즈니스 변화에 최대한 민첩하게 대응하도록 지원한다. 그럼에도 불구하고 비즈니스와 제약조건을 하나의 서비스로 코딩하는 일반적 접근법은 비즈니스 룰의 변경을 위하여 전체 결합로직을 변경하는 등 많은 자원을 소모하게 된다. 본 논문에서는 이러한 문제점을 개선하기 위하여 서비스 시스템 개발에 관점 지향 기법(Aspect Oriented Approach)을 확장하여 적용한다. 관점 지향 기법의 기존 핵심관심(Core Concern), 횡단관심(Cross Cutting Concern)이외에 비즈니스 프로세스와 서비스에 포함된 비즈니스 룰을 룰관심(Rule Concern)이라는 새로운 관심사로 분리한다. 룰관심은 수준에 따라 프로세스 룰관심(PRA: Process Rule Aspect)과 서비스 룰관심(SRA: Service Rule Aspect)으로 구분된다. 시스템은 이러한 관심사의 분리를 통하여 핵심관심, 횡단관심 및 룰관심으로 각각 모듈화 되고 독립적으로 유지보수 되어 서비스 시스템의 적용성, 재사용성 및 유지보수성을 높일 수 있다.

XML 을 이용한 Aspect 기반 소프트웨어 컴포넌트 명세 (Specification of aspect-based software component using XML)

  • 이승형;송영재
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2005년도 추계학술발표대회 및 정기총회
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    • pp.405-408
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    • 2005
  • 현재 컴포넌트 기반 소프트웨어 엔지니어링의 접근은 소프트웨어 컴포넌트 인터페이스 디자인과 실행에 중심을 둔 경향이다. 컴포넌트 기반 소프트웨어 개발을 하기 위하여, 전체 시스템을 분석하는 것은 복잡하고, 이해하기 어렵다. 이를 위하여 aspect 기반 컴포넌트 개발방법을 도입한다. Aspect 기반 개발에서는 필요로 하는 컴포넌트를 표현하기 위하여 provide 와 require 를 사용한다. 또한 Aspect 기반 컴포넌트 엔지니어링을 위하여 컴포넌트 사이의 provide/require 서비스에 대한 분류와 추론을 위하여 다른 컴포넌트와 함께 이용할 수 있는 방법을 제안한다. 이 방법은 개발자들은 전체 시스템 개발을 위해 필요로 하는 적합한 컴포넌트의 provide/require 을 사용하여 접근하기 때문에 컴포넌트 검색, 합성, 재사용에 도움을 줄 수 있다. 컴포넌트 aspect 정보의 확장을 위하여 XML 문서 포맷을 사용함으로써 서로 다른 환경에서도 사용할 수 있도록 명세 하였다.

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AJFCode: An Approach for Full Aspect-Oriented Code Generation from Reusable Aspect Models

  • Mehmood, Abid;Jawawi, Dayang N.A.
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제16권6호
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    • pp.1973-1993
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    • 2022
  • Model-driven engineering (MDE) and aspect-oriented software development (AOSD) contribute to the common goal of development of high-quality code in reduced time. To complement each approach with the benefits of the other, various methods of integration of the two approaches were proposed in the past. Aspect-oriented code generation, which targets obtaining aspect-oriented code directly from aspect models, offers some unique advantages over the other integration approaches. However, the existing aspect-oriented code generation approaches do not comprehensively address all aspects of a model-driven code generation system, such as a textual representation of graphical models, conceptual mapping, and incorporation of behavioral diagrams. These problems limit the worth of generated code, especially in practical use. Here, we propose AJFCode, an approach for aspect-oriented model-driven code generation, which comprehensively addresses the various aspects including the graphical models and their text-based representation, mapping between visual model elements and code, and the behavioral code generation. Experiments are conducted to compare the maintainability and reusability characteristics of the aspect-oriented code generated using the AJFCode with the most comprehensive object-oriented code generation approach. AJFCode performs well in terms of all metrics related to maintainability and reusability of code. However, the most significant improvement is noticed in the separation of concerns, coupling, and cohesion. For instance, AJFCode yields significant improvement in concern diffusion over operations (19 vs 51), coupling between components (0 vs 6), and lack of cohesion in operations (5 vs 9) for one of the experimented concerns.

Side-Aspect Target Strength Measurement of Swimbladdered Fish Using Multi-Frequencies System: Black Sea Bream (Acanthopagrus schlegeli)

  • Cho, Sung-Ho;Kang, Don-Hyug;Na, Jung-Yul;Myoung, Jung-Goo;Kim, Jong-Man
    • The Journal of the Acoustical Society of Korea
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    • 제25권3E호
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    • pp.101-109
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    • 2006
  • Besides dorsal-aspect target strength (TS) of the fish, side-aspect TS information is also acoustically important parameter in fisheries acoustics. In this study, the side-aspect TS of 11 black sea bream (Acanthopagurus schlegeli) were measured using a split beam echosounder of 120, 200, and 420 kHz; total length of the fish ranged from 12.4 to 23.7 cm, and wet weight from 27.5 to 229.8g. For the precise TS measurement with side-aspect angle, we used anesthetized and tethered specimens of known size while being rotated through $360^{\circ}C$ by means of a carousel structure. The side-aspect TS measurements of the fish were conducted by rotating the fish in the horizontal plane at 50 interval. The ping interval was 0.2 second and elapsed time at each angle was 30-60 second. As a result, the measured side-aspect TS data were fitted by sinusoidal function. The relationships between fish length and near full side-aspect TS were as follows: $TS_{120kHz}= 21.46 log (TL)-67.5 (r = 0.70), \;TS_{200 kHz}= 31.03 log (TL)-76.9 (r=0.83),\;TS_{420 kHz}= 30.79 log (TL)-72.2 (r = 0.77)$. For comparison, theoretically estimated side-aspect TS from the Kirchhoff ray mode (KRM) model, which based on swimbladder and body morphology, were compared with the measured TS.

Trends and Issues in the Research of Chinese Educational Technology

  • ZHAO, Hai Lan
    • Educational Technology International
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    • 제6권2호
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    • pp.87-100
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    • 2005
  • The purpose of this study lies in touching the study trend of Chinese education technology through the analysis on present situation of the study in Chinese education technology, and is to suggest the direction for the its further study and development. In order to achieve these kinds of study purpose, the frames have been set to grasp the features and trend of Chinese educational technology in such as 4 aspects of educational technology definition, curriculum and the cultivation of genuine individuals, study zone aspect and the method, and in order to grasp, in the comparison with the countries of advanced educational technology such as Korea, America etc., the progressive features and the trend of development of Chinese educational technology have been analyzed. As a result of the analysis, it has been found that Chinese educational technology has the different features in the study and development of educational technology of Korea and America in the abovementioned 4aspects. First, in the education technology comprehension, it differs from Korea, Japan and America, and understands the technology as a skill. Consequently, in either study or actuality, it seems puts more emphasis on skills (moreover, the aspect of hardware). Second, in the aspect of curriculum and the cultivation of the genuine individuals, gives preponderance to science aspect, and the unclear distinction between the education technology and the computer science makes that the true character of educational technology is not clear. Third, when speaking of study fields and study methods, those of china is a little behind of the advanced nations of the educational engineering, Korea, America and so on. And in the range of study, China is following the international tendency but when it comes to the depth of study and quality is very far from perfect. In the aspect of study method, the theoretical study, design study and development study are occupying mostly, and it is hardly to see the existence about actual proof study, and in this aspect, it is quite different than that of Korea and America. And it is judged that it is related with the traditional educational ideology and the academic study tradition, the cultural air and the features of economical development of China.

해양플랜트산업 경쟁력 강화를 위한 조선기자재산업 고도화에 관한 연구 (A Study on Accelerating Marine Equipments Industry for Enforcing Competitiveness of the Offshore Plants Industry)

  • 하창승;정대현
    • 수산해양교육연구
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    • 제27권5호
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    • pp.1369-1379
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    • 2015
  • This study attempted an AHP analysis through interview with experts in the industries and questionnaire survey on recognition of organization members and future strategic development direction in order to upgrade shipbuilding equipment industries to marine plant equipment industries. Key research results are as follows. First, according to analysis on relative priority between three aspects on acceleration of shipbuilding equipment industries, importance was shown in the order of acceleration of internal competence, acceleration of manufacturing technology, and acceleration of supply chain, which means that the aspect on acceleration of internal competence had relatively higher importance. Second, as for relative importance of detailed item evaluation per respective aspect, it was found that development of core competencies was high from the aspect on acceleration of internal competence, higher value-addition was high from the aspect on acceleration of manufacturing technology, and IT infrastructure construction was high from the aspect on acceleration of supply chain.

제주도 해양레저장비산업 육성 방안에 대한 고찰 (A Study on the Development Strategy of Jeju Marine Leisure Equipment Industry)

  • 이영진;송영민
    • 수산해양교육연구
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    • 제24권2호
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    • pp.286-301
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    • 2012
  • This study was to consider the development strategy of Jeju Marine leisure equipment industry for facilitating marine leisure tourism industry. For achieving this goal, the case studies related to domestic & foreign marine leisure equipment industry, interviews of marine leisure equipment company, the contents of specialist consultation meeting were used in this study. The strategies for promoting were suggested in progress that step 1 was the expansion of maintenance infrastructure as of a port of call, step 2 was the establishing of marie leisure tourism image, step 3 was the integration of marine leisure equipment industry. More specific suggestions were followed. As an aspect of infrastructure, the expansion of management of marine leisure equipment such as yacht, development of marina having similar image of Jeju were suggested. As an aspect of law/institution, the development of financial support system on the marine leisure equipment, promotion of establishment of professional education institutions were suggested. As an aspect of contents/programs, the hosting the exhibition of marine leisure used equipment of international trade, the development of environmental-friendly program associated with cruise were suggested, Finally, as an aspect of promotion/marketing, the promotions linked with drama & movie industry, the strategy of improvement of negative image to the yacht industry were suggested.