• International Journal of Computer Science & Network Security
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• 제24권6호
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• pp.180-186
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• 2024

A common language for modelling software requirements and design in recent years is Unified Modeling Language (UML). Essential principles and rules are provided by UML to help visualize and comprehend complex software systems. It has therefore been incorporated into the curriculum for software engineering courses at several institutions all around the world. However, it is commonly recognized that UML is challenging for beginners to understand, mostly owing to its complexity and ill-defined nature. It is unavoidable that we need to comprehend their preferences and issues considerably better than we do presently in order to approach the problem of teaching UML to beginner students in an acceptable manner. This paper offers a hint based approach that can be implemented along with an ordinary lab task. Some keywords are heighted to indicate class diagram component and make students to understand the textual descriptions. The experimental results indicate significant improvement in students learning skills. Furthermore, majority of students also positively responded to the survey conducted in the end experimental study.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2005년도 하계학술대회 논문집 Vol.6
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• pp.135-138
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• 2005

HDL(Hardware Description Language) is the most important modem tools used to describe hardware, and becomes important as we move to higher levels of abstraction. The HDL has been made brisk use of in analog design, MEMS device[1-2], process related field as well as digital design. The most important characteristics of HDL is Abstraction which is the strongest tool that extend greatly designer's design ability. In this paper by the Modelling Continuum with hierarchical structure of abstraction, we apply UML(Unified Modeling Language) to SoC Design with HDL UML makes an easy and visual description of the various levels of abstraction, and gives designers good flexible modeling capabilty for SoC Design.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.1814_1816
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• 2009

ZigBee is a technology that is being rapidly developed since its power consumption is low and the stability of its communication is high. However, documented data which is coded using conventional programming languages such as C or assembly programming language would not be able to fulfill the various requirements upon application development by ZigBee. Unified Modelling Languge (UML) could be one of the alternatives to solve this problem. UML provides a variety of diagrams by which the results of the software development can be presented visually and by which the developers can communicate more spontaneously. This paper shows the results of an ongoing study into the application of model-driven methods for ZigBee Application. Also, this paper shows that this approach is feasible by comparing memory usage, latency, and power consumption of UML modelling code with those of handwritten code.

• 대한안전경영과학회지
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• 제5권2호
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• pp.75-85
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• 2003

Manufacturing firms have adapted seriously the Design for Manufacture and Assembly (DFMA) techniques which consider concurrently all factors related to the product development by using effective communications and sharing of information on product development processes. This study performed modelling and characterizing the data related to product manufacturing information for Design for Manufacture(DFM) evaluation and analysis. It adapted component-based development method for communicating and managing manufacturing information among distributed manufacturing organizations. Introducing component-based development offers safety and speed to network based system. This development using Unified Modelling Language(UML) provides efficient way for reconstruction and distribution of applications. Also, the integration of database and component into the internet environment enables to communicate and manage effectively manufacturing information for DFM evaluation and analysis at any place in the world. Therefore this system can make it more reasonable that evaluating, analyzing, and effective decision making of product design using DFM technique.

• 한국컴퓨터산업학회논문지
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• 제3권2호
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• pp.167-178
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• 2002

최근에 이 기종 시스템간의 구조적인 문서 교환을 위해 XML(eXtensible Markup Language)이 B2B와 각종 산업계에 급속히 확산되고 있는 시점에서 이를 모델링 하기 위한 객체 지향적인 시각화 도구가 필요하다. XML에서 현재 사용하는 문서구조 정의용 규칙인 DTD(Document Type Declaration)는 여러 산업 분야에 적용시키기가 어렵다. 이에 W3C에서 XML에 더욱 적합하고 사용자를 만족시키기에 충분한 새로운 문서 구조 정의용 규칙인 XML 스키마(Schema)의 권고안(Recommendation)을 발표하였다. 이에 XML 스키마를 객체지향 모델링 기법(UML)을 활용해 설계하면 재사용성이 높고 유연성이 좋은 문서 구조를 정의할 수가 있다. 본 논문은 XML 스키마를 UML(Unified Modeling Language)로 사상(mapping)하는 명세와 알고리즘을 제안한다.

• 전기학회논문지
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• 제57권5호
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• pp.767-772
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• 2008

Korea Electric Power Research Institute in charge of the power IT project "Development of Prototype for Advanced Substation Automation System based on the Digital Control Technology", is performing the verification of performance of the substation automation system. In order to verify a system based BUS protection IED, the standardized document and procedures are required. But there is nothing to describe systematically how to verify IEC 61850 based IED in the system environment except an individual IED testing way and report. This paper presents the substation automation system based ways and procedures to verify the IED using UML(Unified Modelling Language).

• 대한전기학회논문지:전력기술부문A
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• 제53권1호
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• pp.7-12
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• 2004

The role of protective relay with correct setting value is very important for the reliable operation of power : system. The setting process of a protective relay is difficult and requires hard work of calculations. Therefore, KEPCO as been using PROSET2000, a computer program system, in order to automate the setting process of protective relays in power transmission network since 2000. This system has a database and relay setting modules for each type of realy with coresponding Human and Computer Interaction(HCI). For the setting of a new type of relay, it require a new module, a HCI and a database table corresponding to the new relay. But it's update is not easy in case of new type of relay. This paper discussed the update method introducing a concept of Open Interface. It addressd a method to make a new HCI for new relay in view of object-oriented method using UML(Unified Modeling Language). Using the UML, we updated the PROSET2000. HCI screens for a new relay is generated automatically using the information of the new relay stored in the database. And, the database management module is upgraded to solve problems in manage and maintain the database in view of Open Interface.

• 공학교육연구
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• 제22권6호
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• pp.3-11
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• 2019

To evaluate the suitability of UML (Unified Modelling Language) in terms of educating novice software engineers, we have conducted a survey study with 102 students who were enrolled in a mandatory course for sophomores in computer science and engineering department. The results indicate that UML 1) has high satisfaction rate among software novices as an education material, 2) improves computational thinking and problem-solving skills, and 3) increases the efficacy of learning when the education program is implemented in the order of UML, programming practice, and physical computing. This paper suggests the applicability of UML as a new education paradigm in software education.

• 정보처리학회논문지D
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• 제17D권2호
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• pp.129-146
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• 2010

최근 다양한 분야에서 폭넓게 활용되고 있는 XML 문서는 유연하고도 개방적인 특성으로 인해 정보교환이나 전송을 위한 수단으로 널리 이용되고 있다. 한편 XML 문서를 위한 시각적, 직관적 질의 언어인 XML-GL은 질의에 대한 의미와 결과 문서의 구조를 시각적으로 표현할 수 있기 때문에 XML 문서에 대한 구조 검색과 정보의 공유가 용이하다. 그리고 UML은 정해진 표기법과 다양한 다이어그램을 이용하여 객체지향 분석과 설계를 위한 도구로 사용되고 있다. 따라서 본 논문은 XML-GL의 데이터 모델인 XML-GDM을 기반으로 표현된 XML 문서를 UML 클래스 다이어그램으로 사상하기 위한 새로운 객체 모델링 방안을 제안한다. 이를 통해서 XML 문서를 직관적인 방법으로 객체지향데이터로 변환하고 저장/관리할 수 있다. 또한 객체지향 검색방법을 적용하면 보다 효율적으로 XML 문서를 검색할 수가 있다.

• 한국정보과학회논문지:소프트웨어및응용
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• 제32권6호
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• pp.473-485
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• 2005

UML(Unified Modeling Language) 액티비티 다이어그램은 시스템의 동적인 측면을 표현하는데 적합하기 때문에 비즈니스 프로세스와 워크플로우를 모델링하는데 유용하게 사용된다 그러나 워크플로우 시스템에서 중요시 되는 시멘틱 정보 표현의 경우 OMG가 제공하는 UML 액티비티 다이어그램에 대한 시멘틱 정보를 표현하기 위한 지침만으로는 정확한 시멘틱 정보의 표현이 어렵다. 이에 본 논문에서는 워크플로우 시스템의 특성에 맞도록 ASM(State Machine) 시멘틱을 확장한 후 액티비티 다이어그램에 적용하여 워크플로우 시스템을 모델링하는 방안을 제시한다. 이와 같은 ASM 시멘틱을 기반으로 하는 정형적인 시멘틱에 대한 정확한 정의를 통하여 보다 효율적인 워크플로우 모델링이 가능하다.