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Research on Systems Architecture to Support Technology Development for Production Scheduling Based on Case Database.

Research Project

Project/Area Number 09680412
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 社会システム工学
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

SEKIGUCHI Yasuki  Hokkaido Univ., Fac. of Econ., Pro., 経済学部, 教授 (00091471)

Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 1999: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1998: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1997: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywordsdecision support system / case base / production scheduling / modeling / problem definition / model / data independence / solver independence / オブジェクト指向 / スケジューリング / 実体-関連モデル / 意思決定支援
Research Abstract

(1) A new information model, Generic Entity-Relationship Model (GERM), and a new method for problem definition based on GERM were proposed. GERM is applicable for simulation as well as optimization problems. Architecture for a case database of problem definitions was proposed. A prototypical system of the case database based on the architecture was developed and effectiveness of the architecture was demonstrated. The case database can support users in describing real problems prior to mathematical formulation.
(2) A mathematical model to a GERM-based problem definition is defined as a pure mathematical object. The mathematical model is connected with the respective problem definition through information called "unification condition." This technique provides a method to describe many-to-many correspondence between mathematical model and problem definition. Based on the technique a case database to support mathematical formulation for problem definition can be developed and is convenient … More ly used for reusing mathematical models. Model/data independence is realized in the case database, because GERM-based problem definition is independent of numerical data.
(3) We distinguish "user defined model" that is a mathematical model developed by a user from "standard model" used by a developer of a solver. They are connected to each other through information called "connection information." This is our method for model/solver independence. A solver to a standard model is invoked from the user-defined model connected to it. This improves reusability of solvers. Besides, the user-defined model is connected to a problem definition (cf. (2)). As a result, a user can invoke a solver from a problem definition with numerical data.
(4) Experience on the prototypical model taught us that it is not easy for users to understand context of a GERM-based problem definition. This seems caused partly by the fact that object-types are fundamental elements of GERM. We proposed a method for inputting an object-type through input of its instances. Less

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (5 results)

All Other

All Publications (5 results)

  • [Publications] 関口恭毅: "意思決定支援システムにおける問題定義について"オフィス・オートメーション. 18. 32-35 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yasuki Sekiguchi: "A Generic Approach to Problem Specifications for Mathematical Models."Discussion Paper Series A, Faculty of Economics, Hokkaido University. No.44. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Jinyuan Bao, Tsuyoshi Mukohara. Yasuki Sekiguchi: "Developing User Interface for Input of Pre-Mathematical Problems Specification in Scheduling."Discussion Paper Series A, Faculty of Economics, Hokkaido University. No.61. (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Tsuyoshi Mukohara, Yasuki Sekiguchi: "A Method for Invoking Solvers from Non-Mathematical Problems Specifications."Discussion Paper Series A, Faculty of Economics, Hokkaido University. No.63. (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 関口恭毅: "意思決定支援システムにおける問題定義について" オフィス・オートメーション. 18・4-2. 32-35 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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