• Journal of the Korea Society of Computer and Information
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• v.9 no.4 s.32
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• pp.61-69
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• 2004

The user interface design needs to support the complex interactions between human and computers. It also requires comprehensive knowledges many areas to collect customer's requirements and negotiate with them. The user interface designer needs to be a graphic expert, requirement analyst, system designer, programmer, technical expert, social activity scientist, and so on. Therefore, it is necessary to research on an designing methodology of user interface for satisfying various expertise areas. In the paper, We propose the 4 business event's abstract object visualizing phases such as fold abstract object modeling, task abstract object modeling, transaction abstract object modeling, and form abstract object modeling. As a result, this modeling method allows us to enhance visual cohesion of UI, and help unskilled designer to can develope the higy-qualified user interface.

• Proceedings of the Korean Information Science Society Conference
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• 2003.04c
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• pp.7-9
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• 2003

대부분의 객체지향 방법론은 객체를 중심으로 한 객체 모델링을 바탕으로 소프트웨어를 개발한다. 물론, 객체 모델링 방법은 여러 가지 장점을 가지고 있지만 복잡한 문제를 가진 대규모의 시스템에는 적합하지 않다. 따라서, 이런 복잡한 대규모 시스템을 객체의 패턴에 따라 간단한 모델로 분할할 필요성이 있으며 이를 위하여 역할 모델링 방법이 제안되었다. 본 논문은 객체의 패턴들을 추상화하고 복잡한 대규모 시스템을 관계의 분리를 통하여 간단한 모델로 생성할 수 있도록 객체 중심이 아닌 역할을 중심으로 한 역할 모델링 방법을 연구하였다.

• The Transactions of the Korea Information Processing Society
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• v.4 no.5
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• pp.1257-1266
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• 1997

The concepts of class, inheritance and information hicing and so on provide the great strengthes of object-oriented languages, but they also introduce diffculties in porfram analysis and understanding. Particulary, it is move difficult to umderstand the dyamic aspects than the static ones of object-oriented programs. The dyamicaspects can be understood by recognizing the event's reciprocal action among the classes. In this paper, it will be supplied to the reprecentation of event abstraction which is useful for understanding the object-oriented programs.And the clustering concept with the events will be applied to abstract the events. By clustering the events, user can get the information about function of the classes and the reteival of the class library.

• Proceedings of the Korea Society for Simulation Conference
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• 1999.04a
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• pp.54-59
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• 1999

본 논문에서는 유연생산시스템 (FMS: Flexible Manufacturing System)의 객체지향 시뮬레이션(OOS: Object Oriented Simulation)에 대한 기존의 연구들을 소개한다. 먼저 FMS와 객체지향시뮬레이션의 일반적인 개념에 대해서 이야기하고 기존의 연구들을 대상 시스템의 추상화(abstraction)과정을 중심으로 분류하여 정리하였다. 추상화 방법론과 FMS를 위한 객체지향시뮬레이션의 현황 및 과제에 대해서도 간략하게 살펴보았다.

• Journal of The Korean Association of Information Education
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• v.22 no.3
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• pp.375-383
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• 2018

Wing, J. M. emphasized the importance of computational thinking competency to live in the 21st century. In this study, the abstraction of computational thinking is classified into object abstraction, data abstraction, and procedural abstraction through related studies. In addition, abstraction achievement and assessment standards were developed for the abstractable competency assessment. As a result of applying to the school site, the students showed that the object abstraction and the data abstraction competency which are expressed in writing and drawing, they are excellent in solving the problem. However, students hard to write a computer program. The abstractable competency assessment developed in this study will help teach students to teach software education.

• Journal of the Korea Society of Computer and Information
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• v.7 no.4
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• pp.1-7
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• 2002

In this paper, it will be supplied to the representation of event abstraction which is useful for understanding information relationship of the object-oriented programs. And the clustering concept with the events will be applied to abstract the events. By clustering the events, user can set the information about the function of the classes and the retrieval of the class library.

• Proceedings of the Korean Information Science Society Conference
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• 2010.06c
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• pp.5-10
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• 2010

휴대용 단말기를 활용하는 위치 기반 서비스는 기존의 단순한 위치 정보 제공 및 분석에서 보다 개인화되고 지능화되고 있다. 이러한 모바일 추천 서비스는 이동 객체의 위치 정보 뿐만 아니라 객체의 주변 환경 정보도 고려하여 보다 쾌적한 서비스를 제공한다. 이를 위해, 시간에 따라 변화하는 이동 객체의 위치추적은 물론, 온도, 습도, 미세먼지, 등의 다양한 센서 데이터도 상황에 맞게 해석하고 활용할 수 있어야 한다. 그리고 다양한 센서 종류와 함께 수많은 센서 데이터를 해석하여, 전체적인 상황을 판단하기 위해서는 센서 데이터를 적절히 표현하는 데이터 모델의 활용이 필요하다. 이 논문에서는 모바일 추천 서비스에서 환경 정보를 제공하기 위하여 활용한 경사 그리드 기반의 센서데이터 추상화 모델과 그 처리 방법을 기술한다. 추상화 모델은 경사 방향을 활용하여 간단하게 해당 지역의 데이터 경향을 나타낸다. 그리고 색인과 연산자를 활용한 처리방법을 통해 환경 정보를 제공하는 과정을 설명한다.

• Spatial Information Research
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• v.10 no.3
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• pp.421-438
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• 2002

Abstraction of geographic data within a spatial database context must deal with geometrical simplification, modification or maintenance of the integrity of features, spatial and aspatial data, topology within class, and relationships between classes. This research is to propose a method to abstract a spatial database into a high level database. This study refines operators to carry out the modifications required by the abstraction process in the spatial database. Then, a set of operator sequences (workflows) is suggested to specify operators required to abstract a given feature class and to arrange them in order. Finally, a prototype system is developed, based on rule management with a graphic user interface. When the abstraction process is implemented sequentially we demonstrate that a preferential ordering of operations improves efficiency and reduces loss and distortion in the information.

• The KIPS Transactions:PartA
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• v.10A no.1
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• pp.75-81
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• 2003

Many abstraction techniques are introduced in programming languages in order to facilitate the development, maintenance and extension of softwares. But several concepts and terms related to abstraction have not been uniformly defined and have been explained differently. Expecially in object-oriented paradigm strongly based on abstraction common consensus was not derived. In this paper, we analyse procedural abstraction, propose the taxonomy of procedural abstraction and show that procedural abstraction contains the concept of abstraction on abstraction in addition to the transformation of procedures into abstraction. We also explain polymorphism in the view of abstraction. These analysis and consideration will make it possible to understand procedural abstraction more intensively.

• Journal of the Korea Society of Computer and Information
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• v.9 no.3
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• pp.1-6
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• 2004

there needs a new Geographic information system development Technology of the abstraction, encapsulation, modulation and hierarchy using Graphic representation of object modeling Technique. The method is based on composite object of Graphic data with the hierarchy concepts and abstraction of Graphic information in order to improve data abstraction of the graphic data file and described concept of multiple inheritance and classification that supports a wide variety of graphic class such as mesh unit, layer. segment and so on. in simple case of software development using SPICE model and object modeling techniques. this thesis suggested object representation of Graphic data which can reduce software development life cycle and the cost of software maintenance.