• Title/Summary/Keyword: object-oriented paradigm

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A design and implementation of group decision support system using object-oriented modeling technique

  • Kim, Soung-Hie;Cho, Sung-Sik;Kim, Sun-Uk;Park, Hung-Kook
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 1996.04a
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    • pp.200-203
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    • 1996
  • Object-Oriented Modeling Technique (OMT) [1] promotes better understanding of requirements, cleaner designs, and more maintainable systems. A development of Group Decision Support System (GDSS) needs this advantage of OMT. GDSS designed through OMT proposes 3 modelings, object modeling, dynamic modeling, and functional modeling. This paper illustrates a design of GDSS using these 3 modelings. By exploiting the object-oriented paradigm, this design results in a highly system-independent design. And this paper shows some implementation issues including a tip of C++ code.

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Object-Oriented Simulation-Based Expert System Using a Smalltalk Paradigm (Smalltalk 패러다임을 이용한 객체지향 시뮬레이션기반 전문가시스템)

  • 김선욱;양문희
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.24 no.66
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    • pp.1-10
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    • 2001
  • Simulation-Based Expert System(SIMBES) is a very effective tool to solve complex antral hard problems. The SIMBES model includes a simulator, a feature extractor, a machine learning system, a performance evaluator, and a Knowledge-Based Expert System(KBES). Since SIMBES depends on Problem domains, a schedule-based material requirements planning problem, which is NP-hard, was selected to exemplify the SIMBES model. To implement the SIMBES application in Smalltalk paradigm, a system class hierarchy was constructed. The hierarchy consists of five large classes such as Job Generator, Job Scheduler, Job Evaluator, Inference Engine, and Executive System. Several classes inside these classes were identified. Additionally, instance protocols about all classes have been described in terms of messages and pseudo methods. These protocols can be implemented easily by any other object-oriented languages. Furthermore, these results may be used as a skeletal system to develop a new SIMBES efficiently, especially when the application is related to other scheduling problems.

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Design of Grinding Datab ase Based on the Frame Model (후레임 모델에의한 연삭가공용 데이터베이스의 설계)

  • 김건희
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 1997.04a
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    • pp.102-106
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    • 1997
  • Grinding has difficulty in satisfying the qualitative knowledge based on the skilled expert as well as quantitative data for all user. Design of grinding database is based on the frame-based model for utilizing the empirical and qualitative knowledge. Inthis paper, basic strategy to develop the grinding database by frame-based model, which is strongly dependent upon experience and intuition, frame-base model, which is strongly dependent upon experience and intuition, is described. Design of grinding database is based on the frame-based model for utilizing the ambiguous knowledge and inference is accomplised by the object-oriented paradigm system.

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Design of Grinding Database by Taking Frame-Based Model (후레임 모델에 의한 연삭가공용 데이터 베이스의 설계)

  • 김건희
    • Journal of the Korean Society for Precision Engineering
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    • v.15 no.2
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    • pp.107-113
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    • 1998
  • Grinding operation has difficulty in satisfying the qualitative knowledge based on the skilful expert as well as the quantitative data for all user. Design of grinding database based on the frame-based model is more effective method for utilizing the empirical and qualitative knowledge. In this paper. basic strategy to develop the grinding database by taking frame-based model, which is strongly dependent upon experience and intuition, is described. Grinding database based on the frame based model for designing the interaction and inference among the slots is accomplised by the object-oriented paradigm system.

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On the Current Status and Future Trend of Distributed Object System (분산 객체 시스템의 현찰과 기술 전망)

  • 윤석환;김평중
    • Journal of the Korean Professional Engineers Association
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    • v.30 no.2
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    • pp.79-86
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    • 1997
  • As network has high speed and wide communication capability, users demand diverse and new software to satisfy their needs. To meet users needs, the softwares for multimedia or groupware or distributed virtual environments can communicate the widely distributed information fast and accurately. Even though the technology for this is under development, it is deficient to support the reliable computer communication. Distributed Object System aims, as the new paradigm of distributed system software development to overcome this problem, to obtain in distributed environment the easiness of development and management, expandability, reusability which object oriented technologies support by solving the complexity of communication processing through the object oriented methods. This paper aims to introduce distributed object system, its technological properties and the current status and trend of technology development related to its standardization. Additionally, with explaining the Replicated Shared Object System(RSOS) which is developed in our country as one of the distributed object systems, its future prospects and technical issues are discussed.

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A Study about Alternative Program Paradigm for Improving Integration and Reusability of Agricultural Engineering Programs (농공학 분야 프로그램들의 통합 및 재사용성 향상을 위한 방안의 모색)

  • Kim, Tae-Gon;Lee, Ho-Jae;Lee, Jeong-Jae
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2005.10a
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    • pp.686-689
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    • 2005
  • Many computational models using computer program in agricultural engineering were proposed and introduced until now. These programs were developed based on procedure and structural program paradigm, so it's hard to reuse because programs become bigger and complex. In this study proposals a program paradigm that is easy to combine and reuse. Embedded engineering techniques are Java, JavaBean model, object-oriented programming.

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A Methodology for Deriving An Object Model by Using Structured Analysis Results (구조적 분석 산출물을 이용한 객체 모델 유도 방법론)

  • 이희석;배한욱;유천수
    • Journal of the Korean Operations Research and Management Science Society
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    • v.21 no.3
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    • pp.175-195
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    • 1996
  • In conventional analysis methods, data and process are loosely coupled for building information systems. Several object oriented approaches have been proposed to integrate data and process. However, object oriented analysis requires a radical paradigm and thus system analysts find difficulties in generating object models direcctly from end users. To alleviate these difficulties, this paper proposes a methodology for deriving an object model by using structured analysis results. Objects are obtianed primarily from entities in Entity-Relationship Diagram. Methods are obtained through the analysis of the relationship between processes and data stores in Data Flow Diagram Methods are assigned to the objects by using object/process matrices. A real-life case is illustrated to demonstrate the usefulness of the methodology.

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A Fuzzy Object Data Model (퍼지 객체 데이터 모델에 관한 고찰)

  • 이진호;이전영
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 1996.10a
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    • pp.129-132
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    • 1996
  • In this paper, we suggest a framework to represent the fuzziness in knowledge base as a perspective of the object-oriented paradigm. We divide the knowledge base in two parts. One is the object-base that stores the fuzzy propositions and the explanatory databases. The other is the rule-base that manages the rules between the fuzzy propositions. As the first step, we have to develop a new fuzzy object model that gives an easy way to represent the fuzzy propositions, that is, the fuzzy knowledge in the real world.

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A Use of Extended Use Cases and Hierarchical State-Based Testing Methods for the Testing of Object-Oriented Information Systems (객체지향 정보시스템의 테스팅을 위한 확장된 유스케이스의 사용과 계층적 상태 기반 테스팅 방법)

  • 박광호
    • The Journal of Information Technology and Database
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    • v.6 no.2
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    • pp.29-43
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    • 1999
  • Object-oriented development methodologies require consistent and seamless object-oriented paradigm to be applied from analysis to testing. Testing must focuses on the state of aggregated objects. This paper suggests testing methods that satisfy such requirements. In order to confirm appropriate implementation of the user requirements, the methods apply extended use case[Jacobson et al., 1992] that are prepared form analysis stage. Testing must be performed based on the use cases because the user requirements are formally documented in the use cases. The notations of the original use case are modified for the state-based testings. The testing methods consist of a unit testing and four-level of integration testing. Particularly, the level 0 testing is based on FREE state machine [Binder, 1995, 1996]. The testing methods have been applied to 3 projects and proved their practicability.

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