• Journal of KIISE:Software and Applications
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• v.35 no.4
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• pp.234-244
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• 2008

Since the advent of Six Sigma in 1980's, Six Sigma is widely used in various industry areas, such as manufacturing, financial, government, and service, and proves its innovation ability and value by providing lots of success stories. Several researches have been conducted to adopt Six Sigma for Software Development and Software Quality Assurance-Software Six Sigma. Although the wide use of Six Sigma, there is no software tool to support the execution of Six Sigma Project. For this reason, the Quantitative Six Sigma Project Management is required to support for measuring and analyzing Six Sigma Projects, storing and reporting the results from Six Sigma Projects, and managing Six Sigma Projects through the whole process of, DMAIC or DMADV. In this paper, we introduce the design and implementation of a Quantitative Six Sigma Project Management Framework and Tool. The execution of Six Sigma Project based on Six Sigma Project Management Tool benefits the quantification, the systematization, and the integration.

• 한국IT서비스학회:학술대회논문집
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• 2006.11a
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• pp.299-307
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• 2006

글로벌 비즈니스 환경에 있어서 경쟁력을 유지 혹은 강화시키기 위한 방법으로 많은 기업들이 경영혁신 활동에 주력하고 있다. 식스 시그마는 이러한 활동을 가능케 하는 핵심적인 방법론이자 도구로써 주목 받고 있다. 따라서 본 연구에서는 식스 시그마의 도입에 따른 성과요인을 분석하여 보다 체계적인 프레임워크를 제시함으로써 그 성공 가능성을 관리할 수 있도록 하는 것이 주요한 목적이라 하겠다. 이를 위해 전문가 집단을 대상으로 한 델파이 조사방법과 이를 분석하기 위한 도구로써 계층적 분석기법(AHP)을 적용하였다. 분석결과, 총 12개의 요인들이 도출되었으며 중요도에 따라 가중치를 계산하여 이를 실제 식스 시그마 프로젝트에 적용하여 연구에 제시된 프레임워크를 검증토록 하였다. 본 연구는 다양한 산업 및 기업에서 식스 시그마 방법론의 적용이 급속히 확대되어 가는 추세에서 프로젝트의 성패를 가늠짓게 하는 중요 요인들을 보다 객관적인 프레임워크로 제시되었다는 점에서 그 의의가 있을 것이다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.4
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• pp.868-874
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• 2010

In this paper, we propose a design of automated electronic sanction system for management of six sigma projects. The proposed system performs diverse operations such as registering and choosing enterprise-wide enhancement project, managing schedules of the project, verifying the validity of the project, and thus managing the whole life cycle of the project. Each six sigma project is stored in the database repository for facilitation of its later use. The proposed system has been effectively applied in a Korean company, and thus, through the proposed system, we expect the effects of innovation-related and enhancement-related activities which six sigma is fundamentally pursuing.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.551-556
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• 2008

Six Sigma keeps its continuous change in terms of its strategies and methodologies for 20 years since it is introduced in the industry Developing innovative business management strategies creating a higher synergy effect has been Pursued by combining Six Sigma and different business strategies. In fact, various research studies have been performed for grafting lean production theory with Six Sigma concept. Specifically, the companies which obtained positive results from the applications of Six Sigma are trying to adopt Lean Six Sigma theory for their business strategies. However, the research studies or the applications of Lean Six Sigma are insufficient in the construction industry compared to the other industries such as manufacturing. In order to deal effectively with this issue, this research study suggests the improved and restructured Six Sigma DMAIC processes by embodying the existing Six Sigma DMAIC processes applied on construction projects and improving them through the improvement territories of Lean Six Sigma studied in advance.

• Proceedings of the Korean Society for Quality Management Conference
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• 2006.11a
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• pp.170-173
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• 2006

본 연구는 모터 제조회사에서 모터 수명 향상을 위해 식스 시그마 방법론에 근거하여 개선한 사례연구이다. 모터 수명 향상 활동을 추진하기 위해 본 연구에서는 제조부문의 식스 시그마 프로젝트 추진절차인 Define-Measure-Analyze-Improve-Control 절차를 수행했다. 모터 수명과 연관된 불량 유형을 정의하고 불량 측정 시스템에 대한 계측시스템의 정도평가, 불량유형요인효과분석, 4Step Diagram과 같은 분석기법을 활용하여 수명에 중요한 요인도출, 중요 요인의 개선대책 수립 및 개선 확인 후 최종적으로 지속적인 신뢰성 관리 방안을 수립하였다. 본 연구는 대부분 영세한 모터 제조업체에서 모터수명 관리를 위해 많은 투자를 할 수 없는 현황을 고려할 때 신뢰성 관리의 효율적 방안을 제시한다.

• The Korean Journal of Applied Statistics
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• v.28 no.6
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• pp.1257-1273
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• 2015

The development process of Embedded Software (SW) is gathering interest due to the increased importance of SW in mobile products. According to tough competition and the growing size of the Embedded SW, there is a demand for a new effective way to improve the SW development process, based on customer and market quality aspects, rather than focusing on defect removals in individual SW modules. We review 103 SW improvement projects from the area of mobile phones in order to check the effectiveness of Six Sigma which is the standard for the process improvement statistical tools and methods.

• Proceedings of the Korean Society for Quality Management Conference
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• 2004.04a
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• pp.3-8
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• 2004

식스시그마의 성공을 위해서는 전략적으로 중요한 프로젝트를 선정하는 것이 매우 중요하다 본 연구에서는 AHP(analytic hierarchy process)를 이용하여 식스시그마 프로젝트를 선정하는 프로세스를 제안하고, 이 프로세스의 유효성 확인을 위해 사례분석을 실시하였다

• Proceedings of the Korean Information Science Society Conference
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• 2007.06a
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• pp.51-52
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• 2007

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2000.04a
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• pp.345-348
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• 2000

본 사례는 국내 APT 건설 현장에서 수행된 식스시그마 프로젝트에 대한 것으로 폐콘크리트 발생 저감 및 잔량발생에 영향을 미치는 주요 인자들을 파악하고 개선안을 도출하는 과정을 보였다. 프로젝트는 식스시그마의 방법론을 따라 정의, 측정, 분석, 개선, 관리의 절차에 따라 주요 변수를 규명하고 개선안을 찾아내는 식으로 진행되었다. 분석결과 폐콘크리트 발생을 줄이기 위해서는 첫째, 거푸집 시공 및 타설 프로세스를 개선하고 둘째, 압송관 및 펌프카 내 잔여 레미콘을 최소한으로 감소시키며 셋째, 최종적으로 남은 레미콘을 재활용할 수 있도록 하는 세가지로 요약되었다

• Journal of the Korea Convergence Society
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• v.10 no.11
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• pp.149-159
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• 2019

Six sigma is an innovative management movement which provides improved business process by adapting the paradigm and the trend of market and customers. Suitable selection of six sigma project could highly reduce the costs, improve the quality, and enhance the customer satisfaction. There are existing studies on the selection of Six Sigma projects, but few studies have been conducted to select the correct project under an incomplete information environment. The purpose of this study is to propose the application of integrated MCDM techniques for correct project selection under incomplete information. The project selection process of six sigma involves four steps as follows: 1) determination of project selection criteria 2) calculation of relative importance of team member's competencies 3) assessment with project preference scale 4) finalization of ranking the projects. This study proposes the combination methods by applying group fuzzy Analytical Hierarchy Process (AHP), an easy defuzzified number of Trapezoidal Fuzzy Number (TrFN) and Grey Relational Analysis (GRA). Both of the weight of project selection criteria and the relative importance of team member's competencies can be evaluated by group fuzzy AHP. Project preferences are assessed by easy defuzzified scale of TrFN in case of incomplete information.)