• Journal of Korea Multimedia Society
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• v.12 no.10
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• pp.1436-1449
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• 2009

The value of sensing information is decided according to positions of sensor nodes, which are very important in sensor networks. In this paper, we propose a method that estimates positions of nodes by using adjacent node information and received signal strength in a sensor network. With the proposed method, we can find positions of nodes easily because we use information that nodes have. Moreover, we can find distribution easily for all the nodes because we can measure a relative position for a node whose position is not known based on anchor nodes whose positions are already known. We utilized Use case diagram, activity diagram and State machine diagram among several diagrams of UML to implement proposed method in sensor networks that is dynamic system. We can understand exact flow for each function of the proposed method in node position estimation system can be implemented easily. And we can be confirmed that the position of estimated nodes has a little error.

• International journal of advanced smart convergence
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• v.13 no.1
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• pp.92-98
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• 2024

The current software industry has an emerging issue with natural language-based requirement specifications. However, the accuracy of such requirement analysis remains a concern. It is noted that most errors still occur at the requirement specification stage. Defining and analyzing requirements based on natural language has become necessary. To address this issue, the linguistic theories of Chomsky and Fillmore are applied to the analysis of natural language-based requirements. This involves identifying the semantics of morphemes and nouns. Consequently, a mechanism was proposed for extracting object state designs and automatically generating code templates. Building on this mechanism, I suggest generating natural language-based comic images. Utilizing state diagrams, I apply changes to the states of comic characters (protagonists) and extract variations in their expressions. This introduces a novel approach to comic image generation. I anticipate highly productive comic creation by applying software processes to Cartoon ART.

• Proceedings of the Korean Information Science Society Conference
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• 2007.10b
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• pp.104-107
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• 2007

Web2.0 의 비동기식 웹 페이지 전환기술이 주목을 받으면서 기존의 웹사이트들이 동적인 웹 사이트로 바뀌어 가고 있다. 그러나 웹 애플리케이션 개발에 적용 가능한 설계모델인 UML2.0은 정적인 웹 페이지 설계 모델로 국한되어 있다. 따라서 본 논문에서는 UWE의 항해모델에서 뷰 관점 항해모델과, 데이터 전송 항해 모델을 State Machine, Communication Diagram을 이용하여 비동기식 웹 페이지 항해 모델 개선과 기존의 동기식 웹 페이지 모델과의 호환성 방안을 제안한다.

• The Journal of the Korea institute of electronic communication sciences
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• v.7 no.6
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• pp.1567-1572
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• 2012

An IPC(instrument panel Cluster) is a useful device that provides driving information to the driver. The information includes the vehicle speed, RPM, mileage, etc. The traditional IPC has been mostly implemented with mechanical technique. According to increment of needs for the convenience of IPC by user, the IPC must provide graphical interface and efficient driving information. Also the user-friendly IPC is needed by drivers. Thus flexible and robust software structure and development methods are required in order to develop IPC. In this paper, we propose software architecture and design method for the IPC using modeling method. We use MVC model and UML to model software architecture because they have flexible and robust characteristics. We can develop the various forms of information screen by separating views from model by using state diagram and class diagram in UML. Through this, the cost saving and ease of maintenance can be expected. The development time and cost can be reduced by using proposed method.

• The Journal of the Korea institute of electronic communication sciences
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• v.7 no.6
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• pp.1321-1326
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• 2012

An IPC(instrument panel Cluster) is a useful device that provides driving information to the driver. The information includes the vehicle speed, RPM, mileage, etc. The traditional IPC has been mostly implemented with mechanical technique. According to increment of needs for the convenience of IPC by user, the IPC must provide graphical interface and efficient driving information. Also the user-friendly IPC is needed by drivers. Thus flexible and robust software structure and development methods are required in order to develop IPC. In this paper, we propose software architecture and design method for the IPC using modeling method. We use MVC model and UML to model software architecture because they have flexible and robust characteristics. We can develop the various forms of information screen by separating views from model by using state diagram and class diagram in UML. Through this, the cost saving and ease of maintenance can be expected. The development time and cost can be reduced by using proposed method.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10c
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• pp.246-248
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• 1998

본 논문에서는 대화형 시스템을 시험하기 위한 시험 사례를 마코프 연쇄의 통계적 확률 과정으로 생성하는 방안을 제시한다. 객체지향 방법론의 통합안인 UML에서는 클래스도(Class Diagram)가 표현할 수 없었던 시스템의 동적인 관점을 상태 전이도(State Transition Diagram)는 구체적으로 표현할 수 있다. 시스템의 사용법을 상태 전이도로 표현하고, 상태간의 전이 확률(Transition Probability)을 계산하여 사용법 연쇄(Usage Chain)를 구성한다. 사용법 연쇄는 다음 상태가 과거의 상태에 영향을 받지 않고 현시점의 상태에만 의존하는 이산 시간형 확률과정인 마코프 연쇄(Markov Chain)가 된다. 본 논문에서는 사용법 연쇄를 분석하여 상태 전이도의 상태와 원호가 어떤 범위에서 시험될 것인지 결정되었을 때, 사용법 연쇄의 전이 확률이 높은 순서별로 연결하여 시험 사례를 생성하는 방안을 제시하고, 예제를 설명한다.

• Proceedings of the KSR Conference
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• 2010.06a
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• pp.448-454
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• 2010

Currently a KTX train of 20-car formation is 388m long and carries 931 passengers including one captain and three crews which is quite a few to cover the lengthy service area and many customers. On the other hand, if a passenger wants to talk to an attendant, he has to wait for an attendant passing by his/her seat or walk to an intercom which is placed at every other car. Any of these choices is inconvenient. So, in this paper, we presented a system design for developing an audio/visual communication system for a passenger and an attendant. The system was analyzed and designed according to the Object-Oriented methodology with UML (Unified Modeling Language). Based on a problem statement, a Use-case Diagram, Sequence Diagrams, Class Diagram, State Charts, collaboration Diagram were generated. The design will be used in system implementation to a HEMU-400X test train and to be tested.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10b
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• pp.331-333
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• 2003

UML(Unified Modeling Language) 액티비티 다이어그램은 시스템의 동적인 측면을 표현하는데 적합하기 때문에 비즈니스 프로세스와 워크플로우를 모델링 하는데 유용하게 사용된다. 워크플로우 모델링은 이해하기 쉽고. 작업하기 쉬운 보편성을 갖고 있도록 개발되어져야 한다. 또한 모델링을 하는 기법 자체에는 정형적인 의미를 내포하고 있어야 하며 분석이 가능해야 한다. 이에 본 논문에서는 워크플로우 시스템의 특성에 맞도록 ASM(Abstract State Machine) 시멘틱을 이용하여 액티비티 다이어그램 기반의 워크플로우 모델링에 대한 시멘틱 표현을 제안한다. 이와 같은 ASM 시멘틱을 기반으로 하는 정형적인 시멘틱 표현을 통하여 보다 효율적인 워크플로우 모델링이 가능하다.

• The Transactions of the Korea Information Processing Society
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• v.7 no.3
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• pp.818-830
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• 2000

Automation tools for program analysis are needed in order to program understand and maintain, extract the characteristics of object-oriented program such as class name, member function and data member. In this paper, we carried out design and implementation of the automation tool for effective maintenance of object-oriented software. Being based on Reverse Engineering, this approach extracts class relationship information from C++ source code and generates object-oriented model of class diagram using UML as the standard object-oriented methodology. Therefore, this paper provides developers visualized including class information, definitions of classes, inheritance relationships, set relationships, and simple reference relationships. Finally in this paper, we propose a method that construct class relationship information to table in analysis state and make form of table construction to link form so tat developers can perform understanding and maintaining program efficiently. And this method enable to restructure and reuse in object-oriented model.

• Annual Conference of KIPS
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• 2024.05a
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• pp.494-496
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• 2024

현재 소프트웨어 산업에서 자연어 요구사항의 정확한 분석 연구는 활발히 진행되고 있다. 그러나, 문법적인 분석만을 통해 해석하는 것이 일반적이다. 본 연구는 요구공학과 언어학 그리고 카툰 공학을 접목을 제안한다. 이를 위해서, 1) 언어학적 관점에는 촘스키의 구문 구조 분석 이론과 필모어의 의미역 이론을 결합하여 문법적, 의미적 분석을 수행한다. 2) 요구공학 관점에서는 요구사항 분석으로 상태 모델 속성 추출 및 접목한다. 3) 카툰 공학에서는 3D 이미지 생성한다. 또한, 해결 못했던 동사와 형용사에 대해 분석하여 범위를 확장한다. 즉 언어학적 분석을 바탕으로 UML 상태 다이어그램을 추출하고, 이를 3D 상태 이미지 생성한다. 본 연구는 AI 기술(Text to Image)에 소프트웨어 공학적 방법에서의 절차적인 공정과 재사용 적용함으로써, AI 내부 작동 원리에 대해 체계적으로 연구하고자 한다.