• 품질경영학회지
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• 제33권2호
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• pp.74-86
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• 2005

The project objectives, called critical-to-quality (CTQs) in six sigma, should be defined to faithfully reflect the customer requirements. The identification of such a set of CTQs, which is currently done using brainstorming in practice, is a challenging task. Notwithstanding the rapid growth of the six sigma literature, development of a systematic procedure for identifying CTQs has scarcely been addressed. This paper proposes a systematic method for generating CTQ candidates based on the given voice of the customer in the DFSS/C (Design for Six Sigma / Commercial) context. By providing a step-by-step procedure, the proposed method ensures that all the important CTQ candidates are identified and subjective judgments are minimally required. Hence, the shortcomings associated with the existing practice based on brainstorming can be effectively overcome. The unique characteristics of the proposed method are also demonstrated via a case study.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2005년도 춘계학술대회 논문집
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• pp.199-202
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• 2005

In this paper, the six sigma scheme is employed together with the rigid-viscoplastic finite element method to obtain the optimal metal flow lines in hot press forging. In general, the six sigma process is consisted of following five steps : define, measure, analyze, improve and control. Each step Is investigated in detail to meet customer's requirements through improvement of product quality. A forging simulator, AFDEX-2D, is used for analysis of the metal flow lines of a multi-stage hot forging process under various conditions of major factors, determined at each step of the six sigma process. The analyzed results are examined in order to reveal the effects of major factors on the metal flow lines and the formed shapes. The effects are used to find an optimal process and the optimal process with die is devised and tested. The comparison between required metal flow lines and experiments shows that the approach is effective for optimal process in hot forging design considering metal flow lines.

• Industrial Engineering and Management Systems
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• 제10권3호
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• pp.232-237
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• 2011

Design for Six Sigma (DFSS) has been implemented in many companies to enhance their business performance and customer satisfaction. However, DFSS has not been widely applied to the aircraft industry which operates large, complex development programs. In this paper, the characteristics of an aeronautical product development program are analyzed to figure out the limitations of current DFSS methodology and the prerequisite to deployment of DFSS at the program level is suggested.

• 대한안전경영과학회지
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• 제15권4호
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• pp.279-288
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• 2013

The purpose of this study is to present a case study of six sigma quality improvement practice in cooling fan motor(CFM) manufacturing processes. In this study, the CFM manufacturing process of automobile parts not relevant to the target process rate of the process point of view, in order to reduce the system to solve the problem of localized resolution procedures of six sigma DMAIC methodology was applied to study. In conclusion, this study's field D in order to improve the initial rate of inadequate quality management best practices by applying the method of Six Sigma quality CFM failure through stabilization schemes were proposed cost reduction.To be CFM product to satisfy customers based on continuous monitoring of the effective field of claims quality management system is required.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2005년도 추계학술대회
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• pp.19-29
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• 2005

Since 1980's, many enterprises have constructed Strategy Information System and tried BPR, ISP. Also, they implemented ERP and practiced the Process Innovation and Six Sigma for Management Innovation in todays, Although most companies had provious good plans, but those are not satisfied. Because of failed to change management and continued next activity. Many Project for Process innovation are ended as disposal project in many case, if they want next project, they need a new plan which needs additional fund and re source. This paper studied Process Innovation and Six Sigma in many things and proposed new model for continued project on the master plan. Also it proposed next study subject about ERP Optimization and Harmonization after implemented ERP which is considered as next step of PI.

• 대한산업공학회지
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• 제32권4호
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• pp.347-357
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• 2006

Six sigma activities in an information and communication technology company in Korea are introduced. Korea Telecom(KT) was a public company for a long time and became a private enterprise not long ago. Although this company adopted many innovation programs, they were not effective because of the company's characteristics : long-time government-owned and information service industry. This paper describes the reason why KT introduced six sigma, some implementation strategy, and key factors to successfully deploy it. This paper is expected to be helpful to public or service industry in which it is very difficult to implement innovation activities.

• 경영과학
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• 제25권1호
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• pp.75-91
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• 2008

Information strategy planning (ISP) pursues alignment of business strategy and IT (Information Technology) strategy as well as derivation of feasible and valuable IT projects. However, conventional ISP methodology hardly obtains the objectives because of its intrinsic shortcomings. Diverse ways are proposed for the improvement of the conventional methodology including, for example, combination of EA (Enterprise Architecture) with ISP. Meanwhile, six-sigma methodology which is characterized by quantification, scientific and systematic approach, customer orientation, process orientation has been gaining considerable attention and extending its application scope continuously. In this paper, an innovative ISP methodology is proposed by decomposing activities, methods, and tasks from conventional ISP process and reorganizing them into DMADOV six-sigma framework. In addition, the usefulness and applicability of the newly proposed methodology are provided using an electronics company example. The methodology enhance the possibility of producing future oriented and beneficial IT projects by associating IT strategy and the projects in the form of quantified causal relationship. Besides, it can also increase the objectivity of IT vision and strategy.

• 한국산학기술학회논문지
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• 제9권5호
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• pp.1453-1459
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• 2008

6 시그마의 취약점을 보완하기 위한 방법론으로 고려되는 것이 트리즈(TRIZ)이다. 6 시그마가 일하는 방식 즉 고객의 요구사항을 바탕으로 문제를 파악하는 방법이라면 트리즈는 생각하는 방식, 즉 문제를 해결하는 사고의 과정이다. 본 연구에서는 트리즈 방법론을 사용하여 6 시그마의 문제가 Define-Measure-Analyze- Improve-Control 단계를 통해 해결하는 것과 같이 Define-Analyze-Generate-Evaluate - Verify 단계를 통해 냉장고 온도 검사방법을 개선하는데 적용하여 보았다.

• 산업경영시스템학회지
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• 제23권57호
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• pp.63-76
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• 2000

In today's competitive, market-driven world, a company's survival rests in its ability to provide quality performance products accompanied by total customer satisfaction. To satisfy the needs of customers, companies strive for defect free performances. This requires companies establish an integrated quality management system based on ISO 9000, ISO 14000, QS-9000, AS-9000, TL-9000, 100 PPM, and six sigma. This paper suggests that how to integrate implementation of quality certification systems and six sigma is an important approach in the continuous quality improvement, and six sigma efforts have become one of the key success approach. Through the various survey of total quality management system approach, it is intended to provide a chance to benchmark or give a cue on how to conduct the quality management innovation.

• 대한안전경영과학회지
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• 제12권1호
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• pp.161-168
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• 2010

This paper presents a six sigma project for improving customer satisfaction of a franchise store. The project follows a disciplined process of five macro phase : define, measure, analyze, improve, and control(DMAIC). Due to the limitation of existing methodologies, numerous difficulties arise during the six sigma application to transactional processes. This paper expected to be helpful to service industry in which is very difficult to measure and implement.