• Title, Summary, Keyword: 식스시그마

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A Study on the Recognition Difference of the Success Factors of Six Sigma on the Line of Size (규모에 따른 6시그마 성공요인의 안석 차이연구: 공급자 관점에서 바라본 마케팅 성과)

  • Lee, Seung-Hee;Jo, Young-Jun;Kim, Young-Soo
    • Journal of Digital Convergence
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    • v.8 no.2
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    • pp.177-188
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    • 2010
  • This paper is aimed to examine an empirical analysis of the differences among success factors that contribute to high performance of the organizations that adopted Six Sigma according to company size. Furthermore, the research focused on empirically analyzing whether these factors affect marketing performance or not, from the provider's point of view. For this purpose, a survey was conducted among conglomerates, and small and mid-sized companies which are located in the Gumi Industrial Complex that implemented Six Sigma. The following are facts that were found by empirically analyzing the results. Therefore, it is empirically proven that there are quality performance differences according to company size. marketing performance differences from the provider's point of view. the theoretical proposed model, identified the operational definitions and 9 hypotheses were established, there were executed the survey of 250 employees in companies implementing six sigma.

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Tolerance Optimization of Lower Arm Used in Automobile Parts Considering Six Sigma Constraints (식스시그마 제약조건을 고려한 로워암의 공차 최적설계)

  • Lee, Kwang-Ki;Han, Seung-Ho
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.35 no.10
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    • pp.1323-1328
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    • 2011
  • In the current design process for the lower arm used in automobile parts, an optimal solution of its various design variables should be found through exploration of the design space approximated using the response surface model formulated with a first- or second-order polynomial equation. In this study, a multi-level computational DOE (design of experiment) was carried out to explore the design space showing nonlinear behavior, in terms of factors such as the total weight and applied stress of the lower arm, where a fractional-factorial orthogonal array based on the artificial neural network model was introduced. In addition, the tolerance robustness of the optimal solution was estimated using a tolerance optimization with six sigma constraints, taking into account the tolerances occurring in the design variables.

Comparision of Six Sigma and PM (식스시그마와 PM의 비교)

  • Choi Sungwoon
    • Proceedings of the Safety Management and Science Conference
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    • pp.109-116
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    • 2005
  • This paper discusses the relationship between project management and six sigma and the derivation of overall related table. This paper proposes an integrated approach by blending CMM project management and six sigma to meet business goals.

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Six Sigma Robust Design for Railway Vehicle Suspension (철도차량 현수장치의 식스시그마 강건 설계)

  • Lee, Kwang-Ki;Park, Chan-Kyoung;Han, Seung-Ho
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.33 no.10
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    • pp.1132-1138
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    • 2009
  • The spring constants of primary suspensions for a railway vehicle are optimized by a robust design process, in which the response surface models(RSMs) of their dynamic responses are constructed via the design of experiment(DOE). The robust design process requires an intensive computation to evaluate exactly a probabilistic feasibility for the robustness of dynamic responses with their probabilistic variances for the railway vehicle. In order to overcome the computational process, the process capability index $C_{pk}$ is introduced which enables not only to show the mean value and the scattering of the product quality to a certain extent, but also to normalize the objective functions irrespective of various different dimensions. This robust design, consequently, becomes to optimize the $C_{pk}$ subjected to constraints, i.e. 2, satisfying six sigma. The proposed method shows not only an improvement of some $C_{pk}$ violating the constraints obtained by the conventional optimization, but also a significant decrease of the variance of the $C_{pk}$.

A Study on Recognition Methodology and Deduction Improvement Factors of the Registration Process for the Efficient Use of National Research Facilities & Equipments (국가연구시설.장비의 효율적 활용을 위한 인식조사와 등록프로세스 개선요인 도출)

  • Yum, DongKi;Shin, JinGyu
    • Journal of Korea Technology Innovation Society
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    • v.17 no.4
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    • pp.733-762
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    • 2014
  • The government mandates that national research facilities & equipments through R&D business budget should be registered on the National Science and Technology Information Service (NTIS) for the purpose of the efficient use of the research facilities & equipments. This study is to contribute to the national policies on the efficient management of the research facilities & equipments by recognition methodology with the university's members and analysis of the impact factors of the universities' registration process improvement through the Define level and Measure level of the Six Sigma DAMIC. The survey and interview were conducted on research directors, professors joining university administration, graduate students, researchers, and staffs of A University. The findings are the lack of understanding specific steps and life-cycle management of research facilities & equipments. It is necessary to collect suggestions from universities and pursue policies considered the unique characteristics of the university for advanced operating and maximizing use of university's national research facilities & equipments. Research facilities & equipments enrollment compliance rate and registration accuracy were selected as CTQ-Y through the Six Sigma. 72 potential cause variables were derived through Process Map and C & E Diagram. 13 variables were determined as core potential factors through the X-Y Matrix and Pareto Chart. Research institutions should maximize utilization of research facilities & equipments through deriving a potential variables of the process improvements and designing a detail improvements based on the characteristics of each institutions.

블루오션 전략, 트리즈와 Computer Aided Innovation Software 활용을 포괄하는 Design for Six Sigma (DFSS) Process로의 확장

  • Lee, Gyeong-Won
    • Proceedings of the Korean Society for Quality Management Conference
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    • pp.153-157
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    • 2006
  • 현장의 품질 관리방법으로 식스시그마 DMAIC(Define-Measure-Analysis-Improve-Control) Process는 설계 분야의 Design for Six Sigma Process인 DMADV (Define-Measure-Analysis-Design-Verify), ICOV (Identify-Characterize-Optimize-Verify) Process 로 문제를 설계 단계에서 사전에 해결하는 How to do 의 방법, Process 로 확대되어 많은 기업으로 확대되고 있다. 또한 최근 신상품, 신사업 기획이 중요해지면서 What to do 에 해당하는, 블루오션 전략과 트리즈의 예측 방법과 Computer Aided Innovation Software를 포괄하는 DFSS의 확대 Process 와 그 효용에 대해서 본 논문에서 설명하고자 한다.

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품질개선을 위한 분임조 사례연구

  • Gang, Min-Su
    • Proceedings of the Korean Society for Quality Management Conference
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    • pp.413-416
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    • 2006
  • 제조 기업이 글로벌 경쟁 환경 속에서 생존하고 발전하는 데에는 그 기업의 부단한 생산혁신을 통하여 품질 및 가격, 납기에 대한 획기적인 개선노력으로 원가경쟁력을 갖추어야만 한다. 식스시그마를 비롯한 많은 품질경영혁신 도구가 상존하고 있지만 대기업에 반해 상대적으로 기업규모와 경영기반구조가 취약한 중소 제조기업의 경우에는 해당기업의 혁신도구를 찾아 적용하기에 매우 어렵다 할 수 있을 것이다. 그리하여, 필자가 이러한 현실을 감안하여 산업현장에서 실증적으로 지도하고 참여하였던 사례를 연구 검토함으로써 제조기업의 품질경쟁력을 향상시키기 위한 대안의 하나로써 제시하고자 한다.

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