• Proceedings of the Korea Information Processing Society Conference
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• 2001.10a
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• pp.347-350
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• 2001

이 논문은 기존의 Use Case 방법론을 개선하려는데 초점을 두고 있다. Use Case 방법론의 설계단계 중, 설계 프랙티스(Design practices)단계에 소프트웨어 테스팅 개념을 적용하였다. 이 방법은 먼저 사용자의 요구 사항을 상호작용 다이어그램을 통해 분석하고, 설계 컴포넌트(Design Component Units)라고 불리는 기능적 컴포넌트들로 새롭게 정의하고 추출한다. 추출된 기반을 바탕으로 생성된 설계 컴포넌트들을 설계 스키마(Design schema)에서 계층구조로 분할하는 방법이다. 여기서 개발자들의 목적에 따라 선택한 수 있도록, 다양한 기준에 적용한 수 있는 여러 가지 설계 컴포넌트들을 정의하였다. 개선된 Use Case 방법론을 토대로 변환 알고리즘[11]을 이용해 새로운 Use Case 툴을 개발하고자 한다.

• Journal of Internet Computing and Services
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• v.6 no.4
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• pp.21-35
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• 2005

Software product-lines is the software development paradigm to attain the rapid development of quality applications by customizing the reconfigurable components and composing them based on predefined software architectures. Recently various methodologies for the component-based product lines are proposed, but these don't provide the specific implementation techniques of the components in terms of variability resolution mechanism. In other hand, the several approaches to implement the component supporting the variabilities resolution are developed, but these don't define the systematic analysis and design method considering the variabilities from the initial phase. This paper proposes the integration of PLUS, the one of product line methodologies extending UML modeling, and component code generation technique in order to increase the efficiency of producing the specific product in the software product lines. In this paper, the component has the hierarchical architecture consisting of the implementation elements, and each implementation elements are implemented as XSLT scripts. The codes of the components are generated from the feature selection. Using the microwave oven product lines as case study, the development process for the reconfigurable components supporting the automatic variability resolution is described.

• Journal of the Korea Society for Simulation
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• v.28 no.3
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• pp.11-23
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• 2019

An AddSIM(Adaptive distributed and parallel Simulation environment for Interoperable and reusable Models) is developed to construct a composite environment that can be used in the overall stage from military demand analysis to test and evaluation. In addition, a base system model(BSM), which is a component model of the weapon system with standardized hierarchies, has been developed. This paper describes the critical design of BSM for the guided weapon system that can be operated in AddSIM. The guided weapon system BSM is designed for reusability and interoperability, and to have the same interface for assembly, even if the subcomponents have different resolution. Then, each subcomponent is defined and implemented according to the component resolution classification scheme. Finally, Combinations of subcomponents have been used to construct the guided weapon system of various resolution and the performance is compared and analyzed through simulation.

• Proceedings of the Korean Information Science Society Conference
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• 2001.04a
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• pp.205-207
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• 2001

망관리 표준은 통신망의 효율적인 관리를 위해 ITU(International Telecommunication Union)를 중심으로 제시되고 있다. 이러한 표준화의 노력에 비해 전송기술과 장비를 빠른 속도로 발전하기 때문에 유지, 관리가 어려운 상태이다. 본 논문에서는 CORBA를 이용하여 여러 가지 전송기술과 장비로 구성된 인트라넷의 복잡성을 줄이고 일관된 관리를 가능하게 한다. 구성관리의 기능을 토대로 망의 초기 설치 방안을 제시하였다. 각 계층별 관리객체를 정의하고 계층망별 MIT(Management Interface Tree) 구조를 제시한다. 설계된 구성관리기능을 기반으로 타 관리기능과의 연동 시나리오를 설계하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04b
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• pp.325-327
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• 2004

'생물정보학'이란 생물학적 데이터를 처리, 가공하여 정보를 얻어내는 연구 분야로 이 중 대사체학은 대사 경로 네트워크를 가시화하여 생명 활동을 이해하고자 하는 분야로, 대사 경로 내의 흐름을 한 눈에 알 수 있도록 가시화하여 보여 주는 도구가 반드시 필요하다 따라서 본 논문에서는 새로운 '대사 경로 드로잉 알고리즘'을 제안하였다. 대사 경로 그래프의 구조로는 이분 그래프를 이용하여 가독성을 높였으며. 이 그래프가 척도 없는(scale-free) 네트워크 구조라는 것과 구조적으로 환형, 계층적 선형 컴포넌트를 가진다는 것을 고려하여 사이즈가 큰 그래프도 적절하게 드로잉 하도록 하였다.

• The KIPS Transactions:PartD
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• v.12D no.2 s.98
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• pp.267-274
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• 2005

New game softwares usually have much similarities with old one in the sense of properties and procedures. But nevertheless, the development could be duplicated several times without referencing or reusing of others. In addition, because there is no standardized process about the game engine, the products generated by other software development processes are difficult to understand and to reuse. Therefore, the enterprise developing new game software newly analyze and design although it is same process as the old one. This paper proposes the improved process of the game engine, analysis of structures and relations, classification of the class and the module and their combination methods, implementation of storage, and processor model to apply the component based development method to the game engine.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.4
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• pp.49-59
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• 2017

Smart sensing plays a key role in a variety of IoT applications, and its importance is growing more and more together with the development of artificial intelligence. Therefore the importance of smart sensors cannot be overemphasized. However, most studies related to smart sensors have been focusing on specific application purposes, for example, security, energy saving, monitoring, and there are not much effort on researches on how to efficiently configure various types of smart sensors to be needed in the future. In this paper, a component-based framework with hierarchical structure for efficient construction of smart sensor is proposed and its application to smart home is designed and implemented. The proposed method shows that various types of smart sensors to be appeared in the near future can be configured through the design and development of necessary components within the proposed software framework. In addition, since it has a layered architecture, the configuration of the smart sensor can be expanded by inserting the internal or external layers. In particular, it is possible to independently design the internal and external modules when designing an IoT application service through connection with the external device layer. A small-scale smart home system is designed and implemented using the proposed method, and a home cloud operating as an external layer, is further designed to accommodate and manage multiple smart homes. By developing and thus adding the components of each layer, it will be possible to efficiently extend the range of applications such as smart cars, smart buildings, smart factories an so on.

• Journal of KIISE:Software and Applications
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• v.37 no.4
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• pp.239-251
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• 2010

In modern distributed enterprise applications that have multilayered architecture, business entities are a kind of crosscutting concerns running through service components that implements business logic in each layer. When business entities are modified, service components related to them should also be modified so that they can deal with those business entities with new types, even though their functionality remains the same. Our previous paper proposed what we call the DTT (Data Type-Tolerant) component model to efficiently process the variability of business entities, which are data externalized from service components. While the DTT component model, by removing direct coupling between service components and business entities, exempts the need to rewrite service components when business entities are modified, it incurs the burden of implementing data type converters that mediate between them. To solve this problem, this paper proposes a method to use ontology as the metadata of both SCDTs (Self-Contained Data Types) in service components and business entities, and a method to generate data type converter code using the ontology. This ontology-based DTT component model greatly enhances the reusability of service components and the efficiency in processing data variability by allowing the computer to automatically generate data type converters without error.

• Proceedings of the Korean Information Science Society Conference
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• 2002.04a
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• pp.460-462
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• 2002

본 논문에서는 기존의 망 관리 시스템의 관리가 시간, 장소, 벤더에 종속되고 개발시에 시스템 전반을 설계 구현해야 한다는 단점을 보안하기 위하여 J2EE (Jaya 2 Enterprise Edition) 기술을 사용하는 컴포넌트 기반의 다중 계층 구조를 갖는 망 관리 시스템을 제안하며, J2EE 기반 망 관리 시스템의 프리젠테이션 프레임워크를 설계한다. 본 망 관리 시스템의 프리젠테이션 프레임워크는 웹 브라우저, WAP (Wireless Application Protocol) 단말기, PCS (Personal Communication System) 등의 모든 다양한 Internet 장비들을 망 관리 인터페이스로 제공하기 위하여 자바 빈즈, 서블릿, JSP (Java ServerPage), XML (eXtensible Markup Language), J2ME (Java 2 Micro Edition) 기술 등을 사용하여 설계한다.

• The KIPS Transactions:PartD
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• v.15D no.5
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• pp.659-668
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• 2008

Recently, the component model based on the Exogenous Connector has been proposed in which controls are separated from computation by managing the beginning and result of method calls in the connector. Although it could be loosely coupled between components, it has a problem that is a potential preponderance of element objects of the system by increasing the number of connectors and connection levels. In this paper we propose the Tree Component Model with the Hybrid Message Passing that combines direct and indirect message passing. In our model, components are wrapped by interfaces and controls are separated from computation by only using their interface references. There is a unique feature that the composition structure of components becomes the tree always. As a result of demonstration and comparison, it is found that the Tree Component Model is applicable practically and decreases objects to mediate message passing and build the system.