• Title/Summary/Keyword: Quality function deployment(QFD)

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Application of Quality Function Deployment to Ergonomic Design of a Plier (품질기능전개를 이용한 플라이어의 인간공학적 디자인)

  • Park, Hee-Sok;Lee, Mi-Ran
    • Journal of the Ergonomics Society of Korea
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    • v.26 no.4
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    • pp.85-90
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    • 2007
  • This study shows a way to develop ergonomic design of a plier through quality function deployment (QFD) approach. User needs for pliers, as well as the engineering characteristics which have influence on the ergonomic quality of pliers were determined from the interviews and questionnaires with various user groups. This information was entered in the house of quality, and the results show that the handle is the most important quality factor. A new model was proposed in which ergonomic and gender aspects were considered. QFD is considered a suitable method especially for the manufacturing and/or design fields where biomechanical or physiological background is not present.

Improvement and Systematization of Pre-Study Work for Design Value Engineering in Construction Projects by Quality Function Deployment (품질기능전개(QFD) 기법을 적용한 건설프로젝트 설계VE 준비단계 업무 개선 및 체계화)

  • Yang Jin Kook;Kim Soo-Yong
    • Korean Journal of Construction Engineering and Management
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    • v.6 no.4 s.26
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    • pp.122-132
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    • 2005
  • The importance of design value engineering in construction projects recently is rising, which deal about in reduction of cost and improvement of quality. Especially, From half of this year 2005, It is predicted that the value engineering is necessary to be carried out in the projects having project cost more than 10 billion won. In increasing importance of value engineering, we require a way by which we accomplish value engineering systemically and effectively though it is not common in domestic situation. So, this case study shows a way in carrying out value engineering effectively. As the way is to apply QFD(Quality Function Deployment) in pre-study work of design value engineering, this is expected to contribute as function analysis and reflect the requirement of users or owners.

Study on Application Method of QFD in the Test Evaluation Phase in Connection with Se Process (SE 프로세스와 연계한 시험평가 단계의 QFD 적용방안 연구)

  • Park, Jong Wan;Lee, Jae Woo
    • Journal of the Korean Society of Systems Engineering
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    • v.14 no.2
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    • pp.1-7
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    • 2018
  • The research and development stage can improve the goal level of the project through systematic operation and management of systems engineering. The test evaluation tasks in the R&D process have a lot of connections with the system engineering in terms of requirement management, and the methodology for deriving the requirements when establishing the test evaluation items has been consistently required. In this paper, we propose the process of effectively establishing and using QFD (Quality Function Deployment), a tool to manage customer requirement, and drawing up HOQ (House of Quality) in the search and exploratory development stage of the self - propelled mortar project.

Mixed Integer Linear Programming Model to Determine the Optimal Levels of Technical Attributes in QFD under Multi-Segment Market (다수의 마켓 세그먼트 하에서 품질기능전개 시(時) 기술특성들의 최적 값을 결정하기 위한 혼합정수계획모형)

  • Yang, Jae Young;Yoo, Jaewook
    • Korean Management Science Review
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    • v.33 no.2
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    • pp.75-87
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    • 2016
  • Quality function deployment (QFD) is a widely adopted customer-oriented product development methodology by analyzing customer requirements. It is a main activity in QFD planning process to determine the optimal values of the technical attributes (TAs) so as to achieve the customer requirements (CRs) from the House of Quality (HoQ). In most of the previous research, all the TAs in QFD are assumed to have either continuous or discrete values. In the real world applications, the continuous TAs and the discrete TAs are often mixed in QFD. In this paper, a mixed integer linear programming model is formulated to obtain the optimal values for the continuous TAs and the discrete TAs in QFD planning as well as Branch and Bound (B and B) algorithm is proposed as the solution approach. Finally, the proposed model and solution approach are illustrated with an office chair under multi-segment market, and the sensitivity analysis is performed to study how the proposed model and its solutions respond to the variation for the two elements which are budget and CRs' weights.

System Requirement Analysis of Multi-Role Helicopter by Implementing Quality Function Deployment (QFD(Quality Function Deployment)를 이용한 다목적 헬리콥터의 시스템 요구도 분석)

  • Kim, Minji;Park, Mi-Young;Lee, Jae-Woo;Byun, Younghan
    • Journal of the Korean Society of Systems Engineering
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    • v.1 no.2
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    • pp.56-62
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    • 2005
  • In this study, we first define user requirements to fulfill the reconnaissance and the search missions, by analyzing the system characteristics and operation environment. By investigating the design technology level, the development and procurement costs, the strong system design concepts and possible alternatives will be proposed. To analyze the system requirements, the Quality Function Deployment of the systems engineering approach will be implemented. The promising design alternatives that satisfy the user requirements are extracted by constructing the Morphological Matrix, then the best design concept will be obtained using the Pugh Concept Selection Matrix and the TOPSIS(Technique of Order Preference by Similarity to Ideal Solution).

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A Study of Safety Function Deployment for Using QFD (QFD를 활용한 안전기능 전개에 관한 연구)

  • 김건호;김윤성;권상면;이강복;박주식;강경식
    • Journal of the Korea Safety Management & Science
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    • v.6 no.1
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    • pp.25-35
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    • 2004
  • We achieved a Quantitative economic growth through rapid developed in 1970' and 1980'. It was confronted after IMF crisis that we needed to improve the past economic policy and the industrial structure. In line of that, the problem of the industrial structure like huge accidents of 1990' converted the recognition of safety. And to improve the conversion, the research of a safety management was needed. In this paper, we thought 4M1E(Man, Machine, Method, Material, Environment) as the cause of accident using the principal of process, assuming that output is accident. Applying 4M1E to the structure of QFD(Quality Function Deployment), we propose the safety function deployment, which has the flow line as followed; demand safety, safety characteristic, direct cause, 4M1E and safety management.

The Study of the Test and Evaluation Item Applies QFD in Research & Development Progject (연구개발사업에 QFD(품질기능전개)를 적용한 시험평가 항목 선정에 관한 연구)

  • Park, Jongwan;Lee, Jaewoo
    • Journal of Applied Reliability
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    • v.18 no.2
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    • pp.161-172
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    • 2018
  • Purpose: Test & Evaluation items are main contents which verify performance of the development system and they are deduced going through project management system stages. However, there is no systematic or standardized framework for Test & Evaluation items, so a lot of differences occur between projects and people are questioning whether verification items are selected for the optimization of the development system. In this regard, this research proposes the process of deducing Test & Evaluation items in a systematic way during a development stage by applying QFD (Quality Function Deployment) technique which reflects customers' requirements. Methods: Test & Evaluation items are recognized as customers' requirements, and QFD technique which refines and gathers various requirements of customers effectively during general products' development stage is applied to complete HOQ (House of Quality) Conclusion: There is no specific methodology for Test & Evaluation items, so currently, they are selected by including items which are given by similar projects or higher authorities. However, by utilizing QFD technique, selection of evaluation items which goes through more systematic process is expected to be possible.

Quality Evaluation of Package Software using QFD (품질기능전개 기법을 이용한 패키지 소프트웨어의 품질 평가)

  • 유영관;이종무
    • Proceedings of the Safety Management and Science Conference
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    • 2001.05a
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    • pp.167-171
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    • 2001
  • In this paper, the QFD(quality function deployment) technique is used to acquire the quality requirements of package software which is sold in a commercial software shop. To select the principal quality characteristics of package software, an user survey was conducted for a quality model developed based on the international standards and the previous research. The software user is divided into three groups:the general user, the expert, and the developer. The method of QFD is applied to choose the software quality attributes which have strong correlation with the selected quality characteristics.

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