• IE interfaces
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• v.16 no.2
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• pp.268-279
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• 2003

This paper presents critical steps in building client/server application with UML and Visual Basic, which are derived from the implementation case of a typical order processing system. To begin with, we briefly review the software architecture, the diagrams and the object-oriened building process in the UML. In the inception phase, it is critical to define the project charter, to draw use case diagrams, and to construct a preliminary architecture of the application. In the elaboration phase, it is critical to identify classes to be displayed in the class diagram, to develop user interface prototypes for each use case, to construct sequence diagram for each use case, and finally to design an implementation architecture. Steps to construct implementation architecture are given. In the construction phase, it is critical to design both the database and components. Steps to design these components are described in detail. Additionally the way to create the Internet interface is suggested.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10b
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• pp.172-174
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• 2003

최근 XML 문서가 급증함에 따라 웹-기반 XML 응용 문서의 중요성이 많이 부각되고 있는 실정이다. 웹-기반 XML 응용 문서 중 대표적인 예로 OSD가 있다. OSD는 소프트웨어 패키지와 그들 간의 관계를 정의하는 것이다. UML은 객체지향 표준 모델링 방법으로 객체지향 코드 생성이나 데이터베이스 스키마 생성을 용이하게 해주는 표기법이다. 따라서, 본 연구는 XMI를 이용하여 OSD로 부터 UML 클래스 다이어그램을 생성하는 시스템을 구현한다. 본 연구의 의의는 향후 늘어나는 웹 기반 XML 응용인 OSD의 표준 모델링 방법을 제안함으로써 객체지향 문서 관리의 기반이 되도록 한다.

• Journal of Korea Multimedia Society
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• v.22 no.6
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• pp.706-715
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• 2019

This research implemented grammatical rules for relationship extraction from class diagram candidate. The problem statement is generated by our algorithm to yield class diagram and candidate relationship candidates. The relationships of class diagrams are extracted automatically from the problem statement by using Natural Language Processing (NLP). The extraction used the grammatical rules that obtained from various sources and translated into our algorithm. The performance evaluation of the extraction algorithm used ATM problem statements. The application captures the problem statement and draws automatically the relations of class diagrams using Forced-Directionality Graph algorithm. The performance evaluations show refining methods for class diagram and relationships extraction improve recall score.

• Journal of Information Processing Systems
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• v.2 no.2
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• pp.114-123
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• 2006

We present in this paper the methodology for automatic generation of OWL-S service model ontology along with the results and issues. First, we extract information related to atomic services and their properties such as IOPE from the UML class diagram, and retrieve information related to the composition of services from the UML state-chart diagram. Then, the XSLT applications utilize the acquired information to generate the OWL-S service model ontology through the predefined mappings between OWL-S constructs for composite services and UML state-chart primitives. For the justification of generated service ontology, several validation checks are performed. Our service ontology generation method is general and fully automatic, as well as effective, in that it is achieved in an environment familiar to developers, and information needed to generate service ontology is provided necessarily during service development. It is also noticeable to facilitate representing the condition with GUI rather than a complex language such as OCL.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.11c
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• pp.2007-2010
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• 2002

본 연구는 UML(Unified Modeling Language) 표준에 의해 작성된 객체지향 다이어그램의 일관성과 정확성을 검증하는 방법에 관한 연구이다. 일관성은 하나의 요구사항으로 표현된 여러 가지 UML 다이어그램이 통일된 의미로 표현되었는가를 나타내는 성질이고, 정확성은 사용자가 작성한 다이어그램이 UML 표준에 적합하게 작성이 되었는가를 나타내는 성질이다. 정확성을 검증하기 위해서는 관계를 가지는 다이어그램들의 관계요소를 파악할 필요가 있다. 메타모델을 유도한 후에는 각 메타모델을 기초로 일관성 및 정확성 검증 규칙을 유도해 내고 검증의 자동화를 위하여 정형적 명세로 표현한다. 본 연구에서는 다이어그램별로 작성한 메타모델에서 규칙을 유도하고 그러한 규칙을 OCL(Obiect Constraint Language) 형태로 표현하여 검증하는 방법을 제안한다.

• Proceedings of the IEEK Conference
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• 2002.07b
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• pp.920-923
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• 2002

In this paper, we propose Class Diagram With Constraints (CDWC) as an object oriented modeling technique which makes validation possible in software development. CDWC is a simple and basic model for the object oriented analysis, and has a reasonable strictness for software developers. CDWC consists of class diagrams and constraints (invariant and pre/post conditions), using UML and a subset of OCL.. We introduce a method of validation of CDWC using the verification technique of algebraic formal specification language CafeOBJ.

• The Transactions of the Korea Information Processing Society
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• v.7 no.1
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• pp.29-40
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• 2000

With increasing amounts of information on the web and needs to access accurately them, it is very important to standardize metadata and to store and manage system. The RDF(Rdsource Description Framework) is a framework for representing exchanging, and reusing metadata. And, it can be processing uniformly the standardized metadata, because it uses XML(eXtensible Markup Language) syntax. The RDF schema provides a basic type system for use RDF models. In this paper, we propose rules and an algorithm to convert the RDF schema into an UML(Unified Modeling Language) class diagram and formal models to represent an object-oriented schema for the RDF schema. The proposed rules and algorithm are useful for natural mapping and the object modeling of RDF schema can be easily converted into the object-oriented schema, and the formal models supports an efficient environment for retrieving and processing object-oriented documents.

• Proceedings of the Korean Information Science Society Conference
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• 2003.04c
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• pp.133-135
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• 2003

본 연구에서는 자바 코드로부터 UML 클래스 다이어그램을 추출하는 역공학방법을 제시하였다. 파서를 이용하여 자바 코드로부터 AST를 생성하고 이를 순회하면서 클래스다이어그램 생성에 필요한 정보를 추출하였다. 이를 위해 구조정보와 관계정보를 정의하였는데, 구조정보에서는 클래스 몸체를 구성하는 정보를 표현하였다. 관계정보에서는 클래스들 간의 연관관계를 결정하기 위해 필요한 정보를 표현하였으며, 얻어진 관계정보를 통해 연관관계를 유추하는 방법을 제시하였다. 특히 클래스들간의 연관관계를 추출하기 위한 규칙들을 정의하고, 이를 통해 얻어진 관계정보를 이용하여 연관관계를 유출하는 과정을 설명하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.47-49
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• 2010

객체지향 설계에 사용하는 모델링 언어인 UML을 이용하여 유스 케이스 다이어그램을 도출합니다. 도출된 유스 케이스 다이어그램을 바탕으로 생성되는 클래스 다이어그램을 관계형 데이터베이스 스키마로 변환 방법을 소개 합니다.

• Journal of the Korean Institute of Intelligent Systems
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• v.15 no.6
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• pp.780-787
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• 2005

Many researches and validations for the complexity metrics of the object-oriented systems have been studied. Most of them are aimed for the measurement of the partial aspects of the systems, for example, the coupling between objects, the complexity of inheritance structures, the cohesion of methods, and so on. But the software practitioners want to measure the complexity of overall system, not partial. We studied the complexity of the overall structures of object-oriented systems by analyzing the class diagram of UML. The class diagram is composed of classes and their relations. There are three kinds of relations, association, generalization, and aggregation, which are making the structure of object-oriented systems to be difficult to understand. We proposed a heuristic metric to measure the complexity of object-oriented systems by putting together the three kinds of the relations. Tn analyze the complexity of the structure of a object-oriented system for the maintainability of the system, we measured the degree of understandability of it, the reverse engineering time to draw a class diagram from the source codes, and the number of errors in the diagram. The results of this experiment shows that our proposed metric has a considerable relationship with the complexity of object-oriented systems. The metric will be helpful to the software developers for their designing tasks by evaluating the complexity of the structures of object-oriented systems and redesigning tasks , of them for the future maintainability.