• The Transactions of the Korea Information Processing Society
• /
• v.5 no.3
• /
• pp.795-810
• /
• 1998

현재, 컴퓨터를 사용하는 실시간 시스템의 응용분야에 대한 요구가 급속히 증가하고 있다. 그러나 이러한 실시간 시스템의 개발은 체계적인 접근방법이 부족하다는 이유로 더디게 진행되고 있다. 체계적인 접근방법의 하나는 실시간 시스템의 시간적인 특성과 기능적인 행동을 잘 추상화 해 줄 수 있는 좋은 모델을 사용하는 것이다. 지금까지 객체지향 개념에 기반한 많은 모델들이 개발되어 소개되고 있다. 그 중 UCI에서 개발된 TMO (Time-triggered Message-triggered Object) 모델은 위에서 언급한 요구사항을 잘 만족시켜 준다. [1]본 논문에서는 이러한 TMO 모델을 가장 잘 명세해 줄 수 있도록 해 주는 TMO 모델 명세언어인 C++T를 설계하고 이에 대해 상세히 기술한다. 또한, 이러한 C++T 명세를 기존의 언어인 C++로 번역해 줄 수 있는 C++T번역기를 설계하고 개발한다. 마지막으로, TMO 명세언어 C++T를 기반으로 한 TMO 통합개발환경에 대하여 소개한다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2001.10a
• /
• pp.425-428
• /
• 2001

소프트웨어 역공학은 기존 원시코드에서 구성요소와 그들의 관계 파악을 통하여 설계요소를 추출함으로써 논리적이고 구현에 독립된 추상화된 설계정보를 제공하고 재사용 하게 함으로써 그 역할이 중요시되어왔다. 최근 패턴구조 컴포넌트의 재사용은 기존의 클래스 단위의 재사용 시스템에 비하여 시스템 설계 및 구현단계에서 개발비용의 절감과 개발기간의 단축에 도움을 줄 수 있으며, 이를 통해 개발되는 시스템의 생산성과 안정성을 보다 향상시킬 수 있다. 본 연구는 기존의 소스코드를 분석하여 재사용 가능한 객체를 추출하고 클래스와 클래스들 간의 관련성을 찾아내어 패턴정보를 추출하고 그 정보를 저장하기 위한 데이터베이스 스키마를 설계하였다.

• Proceedings of the Korea Multimedia Society Conference
• /
• 2004.05a
• /
• pp.338-341
• /
• 2004

XMT 는 텍스트 형식의 MPEG-4 씬 기술 언어로 방송용 오디오/비디오 편집 및 사용자 중심의 미디어 컨텐츠 개발에 활용될 수 있다 본 논문에서는 다양한 재생 환경에서 컨텐츠의 상호 교환을 지원하는 XMT 저작 시스템을 제안한다. XMT 저작 시스템은 XMT의 두 가지 파일 포맷인 $\alpha$와 $\Omega$를 생성한다. 두 파일 포맷은 같은 객체를 표현하는 방법이 다르므로, $\alpha$와 $\Omega$를 위한 추상화된 인터페이스를 제공한다. 또한, 두 개의 파일 포맷을 지원하는 내부 자료 구조를 정의하고, XMT-$\alpha$를 BIFS 로 변환하는 기능과 XMT-$\Omega$를 SMIL 과 XMT-$\alpha$로 변환하는 기능을 제공하여 XMT 의 다양한 환경에서 멀티미디어의 상호 교환성을 제공한다.

• Journal of Information Technology Services
• /
• v.8 no.3
• /
• pp.145-157
• /
• 2009

As the software development cycles is getting shorter, the software reusability is emphasized accordingly. Specifically, the design reusability is being recognized as one of the most important factor to increase the software quality and productivity and make the maintenance cost down. Two essential abilities are needed to improve the design reusability. One is the identification of the reusable objects, and the other is the organization of the relationships among the objects. However, the existing methods using such as a grammatical analysis, a scenario matching and a unit of design problems(design pattern) have not been proposed proper principles to identify the reusable objects on the basis of the abstraction which is the core of the object-oriented concept. In this paper, we will offer the Two-Pass abstraction principle based in the abstraction concept.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2012.04a
• /
• pp.938-941
• /
• 2012

전력망 운영관리의 광역화, 신재생에너지의 확산, 양방향 통신에 의한 소비자의 참여에 따른 전력시스템 운영 환경의 변화에 따라 전체 전력시스템 차원의 최적 운영을 위한 발전, 송배전 및 소비자 부문간 어플리케이션들의 통합이 요구되고 있다. 전력시스템 공통정보모델은 전력시스템 전반 특히 운영에 관계된 주요한 대상을 정보관점으로 추상화한 모델이다. 전력계통 구성요소를 객체 클래스와 속성 그리고 그들 간의 관계로서 나타내는 표준화된 방법을 제공함으로써 다양한 벤더들에 의해 독립적으로 만들어진 어플리케이션의 통합이나 부문간 시스템 통합을 용이하게 한다. 본 논문은 전력시스템 어플리케이션 통합을 위한 전력시스템 공통정보모델 설계에 대하여 기술한다.

• The Journal of Information Technology and Database
• /
• v.2 no.2
• /
• pp.25-34
• /
• 1995

In this paper, we present design philosophy and implementation issues of a functionality testing tool for object-oriented database systems. A testing tool has been developed to validate UniSQL/X functionalities with C++ interface. A testing tool is designed under consideration of scaleability, simplicity and extendibility. The schema is deliberately constructed to verify the object-oriented functionalities such as abstraction, inheritance and aggregation. Each test item has been derived under various black box techniques such as equivalent partitioning and boundary-value analysis. The testing tool consists of six phases, namely, database creation, database population, construction of testindex, compilation and link, execution and result reporting, and final cleanup. The prototype provides more than 140 test items at 90 programs.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.21 no.1
• /
• pp.144-150
• /
• 2017

Recently, deep learning is used for intelligent processing and accuracy improvement of data. It is formed calculation model composed of multi data processing layer that train the data representation through an abstraction of the various levels. A category of deep learning, convolution neural network is utilized in various research fields, which are human pose estimation, face recognition, image classification, speech recognition. When using the deep layer and lots of class, CNN that show a good performance on image classification obtain higher classification rate but occur the overfitting problem, when using a few data. So, we design the training network based on convolution neural network and trained our image data set for object classification in few class problem. The experiment show the higher classification rate of 7.06% in average than the previous networks designed to classify the object in 1000 class problem.

• The KIPS Transactions:PartD
• /
• v.12D no.1 s.97
• /
• pp.73-80
• /
• 2005

The purpose of using CBD in the object-oriented modeling is to improve the software capability by reducing iterative time and space complexity. Despites many achievements of CBD, it is needed to study about design patterns and it's standardization for the increment of CBD design reusability. However, it is rather possible that impetuous constructing meta-pattern languages and pattern repositories make adapting patterns to software development more complicate and difficult. By applying GoF design patterns to the design of the TMDL(Total Maximum Daily Load) environmental software discipline, this study suggests a method which specifies Pattern names at class names for retrieving, exploring the adapted patterns on the stage of software design without meta-pattern language which is a redundant abstraction, nor additional pattern repositories. Thus, this study can contribute on the reducing iterations and repetitions that are frequently occurred in the process of the environmental software developments.

• The Transactions of the Korea Information Processing Society
• /
• v.2 no.3
• /
• pp.397-405
• /
• 1995

In order to operate the automatic devices of manufacturing process more efficiently and to solve the needs of the resource sharing,network technology is applied to the unit control devices located in common manufacturing zone and operated by connecting them.In this paper,functional standard of the network operation layer is set as MAP standard application layer of MMS(manufacturing message standard)for the cell or group,which is suggested by CIM (computer integrated manufacturing) standardization as common manufacturing zone.MMS is composed of abstract message which is not consider specific devices.Then,specific message standard must be defined to operate MMS.It is designed as VMD (virtual manufacturing device)objects which are abstract objects to perform group management based on the companion standard.Also they are operated in the group management model system.Group management operation takes multicast communication method which is the communication from single source to the multiple sinks, and the group management system and unit control devices are performed as VMD and real device mapping.

• Journal of KIISE:Computing Practices and Letters
• /
• v.12 no.2
• /
• pp.129-140
• /
• 2006

The existing CBD development methods deal with the analysis phase in a superficial manner. Applying such a superficial analysis to business applications with a number of subsystems makes analysis models be inconsistent with levels and styles, only depending on experiences of the analysts. This inconsistent analysis might cause more serious problems during the subsequent development phases, resulting in the failure of the projects. In this paper, we propose a rule-based analysis pattern that provides an analysis template for business applications. This pattern analyzes the concepts of business applications by using external events and internal rules that process the events. Employing this pattern, a huge business application can be developed by a couple of co-analysts who work together in a consistent and systematic manner. This paper also describes an efficient way to develop business components with the suggested analysis pattern using banking deposit case study through UML Components development process.