• Proceedings of the KIEE Conference
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• 2001.05a
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• pp.65-67
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• 2001

This paper presents an application of UML(Unified Modeling Language) to develop the Transmission Loss Calculation Package (TLCP) and shows a feasibility of UML design for the power system analyzing software. In the rapidly restructuring electric power industry, it is required the development of efficient and transparent transmission pricing mechanism. This should be based to calculate an accurate transmission loss to prompt a fair competition and to give unbiased signals to all the market players. For those reasons, it is necessary to develop a software system for transmission loss calculation. In this paper, we design the TLCP based on UML, and describe using Rational Rose 2000.

• Journal of KIISE:Computing Practices and Letters
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• v.6 no.3
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• pp.329-338
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• 2000

CHILL language has been used for the software development of electronic switching and telecommunications system. ETRI CHILL-96 language is an extended CHILL language with the notions of object-orientation, concurrency, and generic type. In this paper, we discuss some design and implementation issues of ETRI CHILL-96 compiler. Renaming translation rules and function restructuring techniques are adapted for the purpose of preventing name conflict and producing debugging information. Those new extended features are preprocessed in the compilation and translated to extended CHILL intermediate codes. Such compilation technique enables ETRI CHILL-96 language to hold compatibility with software developed by CHILL language.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.346-348
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• 2005

소프트웨어를 동적으로 테스트 하려면 대상 소프트웨어에 적절한 데이터를 주어 실행해 보아야 한다. 효과적인 테스트가 되기 위해서 테스트 케이스의 선택뿐만 아니라 테스트 케이스가 어떻게 표현되었는가가 중요하다. 또한 정적인 테스트 작업에도 테스트를 위한 체크리스트가 어떻게 작성되었는지에 따라 테스트 작업의 효율성이 좌우된다. 이 논문에서는 비효율적이며 문제가 있는 테스트 케이스와 체크 리스트들을 리엔지니어링하는 방법을 제시하고 이를 실험 하였다. 임베디드 시스템의 일종인 디지털 방송수신 장치에 탑재된 소프트웨어를 대상으로 하여 이미 사용 중인 테스트 케이스의 효율성과 적합성을 따져보고 이를 리엔지니어링 하였다. 리엔지니어링 한 후의 테스트 케이스의 산출물이 얼마나 효과적인지를 살펴보았다. 또한 제품 계열 개념의 소프트웨어를 테스트하기에 적합하도록 테스트 케이스를 재사용 또는 restructuring하는 방법도 연구하였다.

• Journal of KIISE:Software and Applications
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• v.28 no.6
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• pp.414-428
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• 2001

객체 지향 설계를 재구조화하기 위해서는 메소드와 속성들 사이의 관계를 파악해야 한다. 메소드와 속성들이 동일한 클래스에 속하는지를 추론하는 과정은 클래스 자료 참조 분석과 메소드 호출 분석에 의존한다. 최근의 많은 소프트웨어들은 규모가 방대하고 복잡하여 개발자가 도구를 사용하지 않고 수작업으로 설계를 재구조화기 어려우며 또한 너무 많은 시간과 노력이 요구된다. 본 논문에서는 메트릭을 이용하여 객체 지향 설계를 자동적으로 재구조화하는 방법을 기술한다. 먼저 메소드, 속성, 클래스, 그리고 그들의 관계츨 추상화된 모델로 표시한다. 이 모델을 기반으로 객체 지향 설계를 정량적으로 측정할 응집도와 결합도 메트릭을 정의한다. 본 논문의 메크릭은 재고조화 과정 동안에 여러 다른 설계들을 효율적으로 비교하기 위한 유용한 기준을 제공한다. 기본 재구조화 행위들과 그 의미(semantics)를 정의하고 메트릭과 행위들을 사용하여 설계를 자동적으로 재구조화한다.

• Journal of the Korea Society of Computer and Information
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• v.13 no.4
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• pp.1-9
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• 2008

Most consumer electronics companies hold numerous line-ups to cope with divergent customer's needs. To cope with current situation, most products are derived from the 'base product' which is developed for brand new features with respect to the change requests. That is called derivation. After 'base code' is developed for newly introduced products, some modification will occur corresponding to the derivative product models. So, quality attributes of 'base code' affects quality and productivity of 'derived code'. But in the middle of continuous modification to 'base code', violation of architectural design decision and unauthorized or maybe unsophisticated change to source code willing to happen and thus it cause critical problem. Those code has 'aging symptom' both architectural and code level in nature. In this paper, we introduced reengineering framework which guide the procedure and tactics to find and fix 'aging symptom' for improvement on quality attribute of 'base code'.

• The Transactions of the Korea Information Processing Society
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• v.1 no.3
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• pp.299-310
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• 1994

Re-engineering tools can substantially increase software maintenance productivity and the quality of maintenance work. Re-engineering usually involves changing the form(e.g.changining objects names and definitions, restructuring process logic) of a program. In this paper, we describe the design and implementation of InMaC＋＋ that is a software tool oriented towards maintenance of C＋＋ object oriented programs. With InMaC＋＋, programms can be displayed and edited in two forms : as the code and as the diagram InMaC＋＋ also contains transformations in both directions, i,e. from code to diagram and from diagram to skeletons of code. Hence, it is suitable for re-engineering and maintenance of existing code. Specially designed browsers implement the graphical interface. InMaC＋＋ contains a database that is based on a simple but effective data model of InMaC＋＋ programs. The model contains only four object classes and three relations, which makes the tool small, and easy to implement and use. A simple query language allows browsing through the database.

• Journal of Advanced Navigation Technology
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• v.26 no.5
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• pp.312-318
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• 2022

Currently, the Republic of Korea is facing the problem of a decrease in military service resources due to the demographic cliff, and is pursuing military restructuring and changes in the military force structure in order to respond to this. In this situation, the Army is pushing forward the deployment of a drone-bot combat system that will lead the future battlefield. The battlefield of the future will be changed into an integrated battlefield concept that combines command and control, surveillance and reconnaissance, and precision strike. According to these changes, unmanned combat system, including dronebots, will be widely applied to combat situations that are high risk and difficult for humans to perform in actual combat. In this paper, as one of the countermeasures to these changes, autonomous behavior software with a BDI architecture-based decision-making system was developed. The autonomous behavior software applied a framework structure to improve applicability to multiple models. Its function was verified in a PC-based environment by assuming that the target UAV is a battalion-level surveillance and reconnaissance UAV.

• Journal of KIISE:Software and Applications
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• v.37 no.5
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• pp.403-410
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• 2010

Monad in Haskell allows one to do imperative-style programming as well as pure functional programming. In this work, we characterize monadic abstraction and its programming technique by restructuring an assembly language interpreter coded in pure functional style into the one by the monadic style. Monad programming consists of two phases; the State monad is applied to a stack and a symbol table, and then a State Monad Transformer integrating these two monads is constructed. As a result, we can see that the program code by monad programming is much clearer and more intuitive than one written in the pure functional style.

• Journal of the Korea Computer Industry Society
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• v.3 no.2
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• pp.235-242
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• 2002

To minimize restructuring cost of a tree, experiments were conducted to collect quantitative information of searching efficiencies varying degrees of imbalance in a binary search tree. Degrees of tree imbalance were measured by a balance factor, an absolute value of height difference of left subtree and right subtree in a binary search tree. The average number of comparisons increased (p＜0.01), and searching efficiency of O(n) was more appropriate rather than O(logn), as degrees of imbalance in a binary search tree deteriorated. However, there were no significant differences of searching efficiencies in height balanced trees and trees with subtrees to have height 3 less than the other (p＞0.05). Therefore, the findings would be applicable to maintain searching efficiency of a software with a binary search tree.

• Journal of Agricultural Extension & Community Development
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• v.7 no.2
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• pp.289-293
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• 2000

The way society works in the 21st century differs from that of 20th century, since the people are brought-up to speed regarding current technologies. The www.aflos.pe.kr site and direct e-mailing system were very useful in delivering floricultural information to extension educators, producers, and variety of individuals. The author’s one year experience indicated that extension educators and farmers are receptive to internet technologies, and extension educators have increased the knowledge base of their clientele by responding through direct e-mails. The internet and direct e-mailing systems were popular and powerful way of transferring floricultural information, especially agricultural extension manpower were limited because of localization of extension educators by changing national status to local governments and decreased number of extension educators through government restructuring. The direct e-mailing to approximately 503 individuals resulted about $1{\sim}3%$ responses and the number of phone calls, however virus protection software for e-mail, internet, file servers and desktops to provide the integrated real-time detection of viruses were needed. For more effective operation of direct e-mailing in the future, more specified target groups and specialized organization such as perennials, bulbs, flowering potted plants. and cut flowers. At the same time, things that have worked for last century should not be replaced with new technology, specifically, the value in one-on-one meetings should not be replaced, but rather serve as a supplement.