• Title/Summary/Keyword: TOC Theory

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A Study on the Development TOC(Theory of Constraints) based Manufacturing system (TOC(Theory of Constraints)를 기반으로 한 최적생산시스템 연구)

  • 류인화;윤희성;김창은
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2000.04a
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    • pp.538-541
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    • 2000
  • Goldratt박사에 의해 제창된 TOC(Theory of Constraints)는 제약조건을 찾아 개선시켜 없애고 시스템 심과를 높일 수 있는 방안을 찾는 제약이론이다. 생산공정을 포함한 모든 분야에서 제약이란 없을 수가 없다. 따라서 기존의 MRP나 PERT/CPM과 같은 무한 자원 스케줄링으로는 예상하지 못한 문제가 도출될 수 밖에 없는 한계를 제약공정의 자원능력이 유한하다는 가정에서 출발하는 제약이론으로 자원활용의 최적화를 도모할 수 있다. 본 논문에서는 TOC와 많은 유사점을 가지고 있는 생산시스템인 JIT와 비교하여 아직 국내에는 활발한 연구가 이루어지고 있지 않은 TOC를 기반으로 최적 생산시스템을 연구하고자 한다.

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TOC Buffer Management using the Concept of the Postponement (Postponement 개념을 이용한 TOC 버퍼 관리)

  • 한지은
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2001.10a
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    • pp.275-278
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    • 2001
  • TOC(Theory of Constraints) - the emphasis of this philosophy was on identifying and eliminating constraints(bottle-necks) in the system. TOC solves this and optimizes whole system by improving manufacturing constraints that limit system result. In this paper, it is shown that the concept of the "delayed differentiation" can be applied for enhancing the efficiency of the time buffer and thus reducing the of the time buffer.

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Development of Synchro-EVM System Integrating TOC-CPM and EVM (TOC-CCPM과 EVM을 통합한 Synchro-EVM 시스템 개발 연구)

  • Lee, Do-Hern;Jang, Gil-Sang
    • Journal of the Korea Safety Management & Science
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    • v.19 no.4
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    • pp.291-299
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    • 2017
  • Recently, many business and government organizations have benefitted by executing projects using TOC-CCPM(Theory of Constraints-Critical Chain Project Management). In parallel, Earned Value Management(EVM) metrics have also become popular. Many organizations like US government requires that all large projects measure and report project progress status using EVM. Thus, project management in business fields such as plant construction, IT development, ship building need to integrate TOC-CCPM and EVM in oder to keep and reduce the delivery date of projects for improvement of customer satisfaction and enlargement of business opportunity. This paper proposes the scheme and case of developing the Synchro-EVM system which TOC-CCPM and EVM are connected.

On the Size of the Constraint Buffer in the TOC(Theory of Constraints) (제약이론에서 제약버퍼의 크기 결정)

  • Koh, Shie-Gheun;Yoon, Hoon-Yong
    • IE interfaces
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    • v.14 no.4
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    • pp.334-340
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    • 2001
  • The theory of constraints (TOC) has become a valuable system in modern operations management. Using the ideas and methods of the TOC, companies can achieve a large reduction of work-in-process and finished-goods inventories, significant improvement in scheduling performance, and substantial earnings increase. The purpose of this paper is to calculate the optimal size of the time buffer which is used to accommodate disruptions in production processes and provide maximum productivity of capacity constrained resources. After the problem formulation in terms of single server queueing model, we observed the system behavior by sensitivity analyses.

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TOC를 이용한 업무프로세스 효율성 향상

  • 배혜림;이승현;조남욱
    • Proceedings of the Korea Association of Information Systems Conference
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    • 2005.12a
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    • pp.130-139
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    • 2005
  • 본 논문은 BPM 시스템에 의해서 관리되는 비즈니스 프로세스의 효율성을 증대시키는 새로운 방법으로 TOC(Theory Of Constraint)이론에서 사용되는 DBR(Drum, Buffer, Rope) 개념을 적용한다. TOC이론은 주로 생산공정의 효율증대를 위한 방법론으로 인식되어 왔지만 비즈니스 프로세스에서도 적용이 되도록 BP-DBR (Business Process - DBR) 방법론을 개발한다. 또한 이를 통해 실제 금융권에서 사용되는 프로세스 효율성이 증대되는 것을 시뮬레이션 실험을 통해 보인다.

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Application of Information Technology using Theory of Constraints (TOC에 의한 정보기술의 활용)

  • 이성호
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.19 no.37
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    • pp.271-278
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    • 1996
  • In Competitive environment Information Technology applications have the potential to create competitive advantage. This study is attemp to explain the impact of the TOC and Information Technology in Operations management. With the application of the TOC Pricinples to Information Technology, it is easy to exploit efficiently industrial organizations' constraints and elevate its constaints. The objective of this study descrive a structure of TOC, necessity of Information technology, and alignment of TOC and Information Technology.

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A Case Study on Activity of Industrial safety Work Environments for Auto-part Company using Thinking Process of TOC (TOC의 TP를 활용한 자동차부품제조업체의 산업안전활동에 관한 사례 연구)

  • Kim, Tai-Chul;Lee, Jun-Soo;Jeong, Byung-Ho
    • Journal of the Korea Safety Management & Science
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    • v.8 no.3
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    • pp.87-101
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    • 2006
  • This paper was concerned about case study for preventing WMDSs(Work-related Musculoskeletal Disorders) by using Thinking Process of TOC(Theory Of Constraints), Unfortunately, the number of WMDSs are rising steadily in auto-part manufacturer. These WMDSs have on worse and worse influence not only on the competition of enterprise but on the life quality of a worker. The research results are helpful to establish the preventing WMDSs and improvement of workplace environments for small-medium sized auto-part company.

On the Application of TOC to B2B e-commerce (B2B 전자상거래에서 TOC의 역할)

  • 정남기
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2000.10a
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    • pp.206-208
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    • 2000
  • This paper focuses on what the philosophy and methodology of the Theory of Constraints contribute to B2B e-commerce. Typical characteristics of TOC methods applicable to B2B are explored in comparison with traditional MRP, JIT, TQM and cost accounting. Addressed are expected changes in various backend business areas supporting e-commerce. TOC provides B2B management with the capability of logistics transparency, speedy decision making, and better cashflow.

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Constraints Evaluation for Ship-building Industry

  • Back Dong-Sik;Yoon Duck-Young
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2004.11a
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    • pp.40-44
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    • 2004
  • A fact that limits a company's ability to achieve more of its goal is referred to as a 'constraint' shipbuilding industries need to identify and manage constraints. The theory of constraints is evolved out of the problems of bottleneck formation. This happens and is conserved for the formulation if various real time problems for arriving standard uniquely addressed problems If, for example, the goal of a shipbuilding industry is to make money now and in the future, it is suggested that TOC will enable th mangers of the company to do so. TOC, focuses the organization scare resources on improving the performance of the true constraints, and therefore the bottom line of the organization. An attempt is made for the implantation of the theory into real world shipyard decision support mechanism.

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