• Journal of KIISE:Software and Applications
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• v.32 no.12
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• pp.1205-1216
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• 2005

Component-based Development (CBD) is gaining popularity as an effective reuse technology. Especially commercial-off-the-shelf (COTS) components are mainly for inter-organizational reuse, rather than intra-organizational reuse. One of the essential tasks in CBD is to reuse the right components that provide the functionality and interface required by component consumers. If candidate components provide a limited applicability and customizability, a component consumer cannot reuse the components in application development. To resolve this partial matching problem, we need smart connectors that fill the gap between candidate components and the specification of components required. Previous researches about smart connector describe only connector types to resolve mismatch problems. However, previous researches do not address the identification and design method to resolve the problems. In this paper, we suggest taxonomy of various mismatch problems to identify partial match problems between requirements of the application and components. We identify smart connector types and suggest a systematic process for designing smart connectors using the taxonomy. Therefore, components that have the problems can be used to develop applications.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.11c
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• pp.2039-2042
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• 2002

컴포넌트 기반 개발환경이 성숙되면서 아키텍처는 재사용 기반을 제공하는 핵심 기술요소로 인식되고 있으며, 이의 체계적인 설계와 관리를 위한 소프트웨어 아키텍처 설계개념이 중요시되고 있다. 그러나 최근 객체지향 개발 프로세스에서 클래스 단위의 하위수준 모듈에서 시작하여 컴포넌트를 도출해가는 상향식(bottom-up)설계방식이나 컴포넌트 개발에서 강조하는 패턴중심 설계기법은 비즈니스 관점의 전략적 아키텍처 설계가 불가능한 단점이 있다. 이에 본 논문에서는 기존의 아키텍처 설계 기법의 단점을 보완하기 위해 한국전자통신연구원에서 개발한 컴포넌트기반 시스템 개발 방법론인 마르미-III 에서 채택하고 있는 아키덱처 설계기법을 소개하고 이를 적용한 사례를 소개한다.

• Proceedings of the Korean Information Science Society Conference
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• 2002.10d
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• pp.100-102
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• 2002

최근 컴포넌트 기반 개발이 소프트웨어 개발의 새로운 패러다임으로 대두되고 있는 가장 큰 이유는 컴포넌트의 재사용으로 인해 얻을 수 있는 개발 기간의 단축, 유지ㆍ보수의 용이함 등의 장점들 때문이다. 재사용의 개념을 시스템으로 확장하여 생각하면 기존 레거시 시스템을 컴포넌트 기반 시스템으로 바꾸는 것이며 이를 위해서는 레거시 시스템의비즈니스 로직을 추출하여 컴포넌트화 해야 한다. 본 논문에서는 기존 레거시 시스템에서 컴포넌트 기반 시스템으로 변환하기 위해 필요한 비즈니스 로직 추출 방법으로 레거시 시스템 분석을 통해 얻은 시스템 플로우 그래프, 프로그램 호출 그래프, 패러그래프 흐름 그래프 등의 그래프 등을 이용하여 레거시 시스템을 이해하고 추출 정보로써 핵심 변수와 패턴 식별을 이용한 방법을 제안한 후 구현된 비즈니스 로직 추출기를 이용하여 구체적으로 COBOL 소스 코드에서 비즈니스 로직이 추출되는 과정을 설명하겠다.

• Journal of KIISE:Software and Applications
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• v.32 no.7
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• pp.601-611
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• 2005

Due to not only proven stability and reliability but a significant investment and years of accumulated -experience and knowledge, legacy systems have supported the core business applications of a number of organizations over many years. While the emergence of Web-based e-business environments requires externalizing core business processes to the Web. This is a competitive advantage in the new economy. Consequently, organizations now need to mine the business value buried in the legacy systems for reuse in new e-business applications. In this paper we suggest a systematic approach to mining components that perform specific business services and that consist of the legacy system's assets to be leveraged on the modem platform. The proposed activities are divided into several tasks. First, use cases that realize the business processes are captured. Secondly, a design model is constructed for each identified use case in order to integrate the use cases with the similar functionalities. Thirdly, we identify component candidates from the design model and then adjust the component candidates by considering common elements among the candidate components. And also business components are divided into three more fine-grained components to deploy them onto J2EE/EJB environments. finally, we define the interfaces of components which provide functionalities of the components as operations.

• The Journal of the Korea Contents Association
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• v.11 no.7
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• pp.51-59
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• 2011

Intelligent service robots leading the future market are robots which assist humans physically, mentally, and emotionally. Since intelligent service robots operate in a tightly coupled manner with humans, their safe operation should be an inevitable consideration. For this safety, real-time capabilities are necessary to execute certain services periodically. Currently, most robot components are being developed based on Windows for the sake of development convenience. However, since Windows does not support real-time, there is no option but to use expensive third-party software such as RTX and INTime. Also since most robot components are usually execute in user-level, we need to research how to support real-time in user-level. In this paper, we design and implement how to support real-time for components running in user-level on Windows using RTiK which actually supports real-time in kernel level on Windows.

• The Journal of Korean Association of Computer Education
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• v.3 no.2
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• pp.87-94
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• 2000

Software productivity doesn't satisfy the need of service of software users and software quality isn't improved. Moreover, we still have difficulty in software maintenance. As a plan to counteract solving this crisis, the technology that is called CBSE or Componentware is introduced. Componet Based Software Architecture, one of the technologies associated with CBSE, as a structural description of system, describes both the components composed system of and interaction among these components. Software Architecture provides the technology and the methodology of composition among components in the field of CBSE. is accepted one of core technologies. In this thesis, we analyse information necessary for component specification and then proposed that component specificaton activities using formal specification language Z which is verified with the ability of analysis and logicality. The proposed activities are composed of 9 tasks. By presenting specific 11 products, it is also proposed that component specification activities which is the base of CBSD(ComponentBased Software Development) for reusing.

• The Journal of Society for e-Business Studies
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• v.11 no.4
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• pp.67-86
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• 2006

In parallel with emphasizing more transparency and social responsibility of businesses, usage rate of XBRL, a XML-based language specific to business reporting, is rapidly increasing. XBRL takes the same approach with the standardization of B2B electronic documents in that it defines components (concepts and their structures) of business reporting documents using XSD(XML Schema Definition). However, it is fundamentally different from the standardization of B2B electronic documents because it restricts concepts to specific types and it defines diverse relationship types for connecting the concepts to themselves and other additional information. As XBRL applications are getting activated, one hot issue is the necessity for standardization of XBRL documents in the national level and reusing the components systematically This paper proposes an alternative based on the problem analysis in order to make it possible to standardize and reuse XBRL documents systematically by applying the UN/CEFACT Core Component methodology.

• Journal of the Korea Society of Computer and Information
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• v.13 no.5
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• pp.163-170
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• 2008

As the degree of dependency and application of component increases, the need to strengthen security of component is also increased as well. The component gives an advantage to improve development productivity through its reusable software. Even with this advantage, vulnerability of component security limits its reuse. When the security level of a component is raised in order to improve this problem, the most problematic issue will be that it may extend its limitation on reusability. Therefore, a component model concerning its reusability and security at the same time should be supplied. We suggest a Separation of Concerns Security Model for Extension of Component Reuse which is integrated with a wrapper model and an aspect model and combined with a reuse model in order to extend its security and reusability by supplying information hiding and easy modification, and an appropriate application system to verify the model's compatibility is even constructed. This application model gives the extension of component function and easy modification through the separation of conceits, and it raise its security as doll as extends its reusability.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.11c
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• pp.2075-2078
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• 2002

최근 이동내장형 시스템 기술이 차세대 정보통신 산업의 주력으로 급부상함에 따라 다양한 이기종 제품간의 호환성과 이식성 제공의 핵심 역할을 수행하는 자바가상머신(Java Virtual Machine)이 주목받고 있다. 가상머신을 컴포넌트 기반 소프트웨어 기술을 사용하여 구축한다면, 재사용과 재구성이 용이해 저렴하고 신뢰성 있는 가상머신 개발이 가능해진다. 이러한 이유로 인하여, 컴포넌트기반 내장형 실시간 시스템을 효과적이고 체계적으로 개발하고 검증하기 위한 개발 툴셋의 중요성도 동시에 증대되고 있다. 따라서 본 논문에서는 PBO(Port-Based Object) 모델을 확장하여 자바가상머신 컴포넌트들을 툴셋에서 제공하는 구성 툴에 의해 조립과 검사를 수행하며, 빠르게 재사용성과 신뢰성을 지원하는 자바가상머신을 개발할 수 있는 환경를 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.10b
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• pp.1573-1576
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• 2000

망의 규모가 커지고 사용자가 많아짐에 따라 점차 망 관리의 필요성이 인식되면서 많은 망 관리 시스템이 개발되고 있다. 하지만 현재의 시스템 제작은 새로운 기술들이 빠른 속도로 나오기 때문에 개발기간이 점점 단축되어야 하는 부담을 안고 있다. 이에 본 연구에서는 SNMP(Simple Network Management Protocol)를 이용하여 웹 기반의 망 관리 시스템을 개발하는 개발자에게 좀더 쉽고 편리하게 시스템을 개발할 수 있도록 망 관리 시스템 개발에 필요한 중요 핵심 기술을 Javabeans를 사용하여 컴포넌트화 하는데 있다. 이를 위해서는 먼저 망 관리 시스템 개발에 필요한 기능 중에 컴포넌트화 가능한 항목들을 규정하고 이들에 대한 컴포넌트를 설계하여 실제 NMS(Network Management System)에 적용하였을 때의 이점을 논하기로 한다.