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

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Quality Function deployment:Methods and modeling issues

  • 김광재
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 1997.10a
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    • pp.189-192
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    • 1997
  • New product development is a complex managerial process which involves multiple functional groups, each with a different perspective. Quality function deployment (QFD) is a new product development process which stresses cross-functional integration. QFD provides a specific approach for ensuring quality through each stage of the product development and production process. This paper provides an overview of QFD including its concepts and methods, and then proposes an integrated approach to formulating and solving the QFD process. This paper also discusses issues associated with the prescriptive modeling of QFD.

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A QFD-Based Requirements Analysis for the Development of Integrated Design &Manufacturing Information System (설계.생산 통합 정보시스템 개발을 위한 QFD 기반 기능 분석)

  • Han, K.H.;Park, C.W.
    • IE interfaces
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    • v.17 no.3
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    • pp.261-268
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    • 2004
  • The primary goal of the requirement analysis phase during information system development is to identify and document what is really needed, in a form that clearly communicates to the user and to development team members. Presented in this paper is a QFD(Quality Function Deployment)-based requirement analysis method and procedure for developing a large-scale enterprise information system. For the purpose of elicitation of software functional requirements, this paper adopts the method of HOQ(House Of Quality) and proposes a simplified HOQ which is more suitable for the software requirement analysis. As a result of this paper, it suggests desired functionalities for an integrated design &manufacturing information system.

Applying QFD in the Design Process of a Comfortable and Sensible Brassiere for Middle Aged Women

  • Kim, Jeonghwa;Kyunghi Hong;Diane M. Scheurell
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 2000.04a
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    • pp.212-217
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    • 2000
  • The purpose of this study was to develop a design process for a functional and sensible brassiere for muddle - aged women. As a methodology, an engineering design process QFD (Quality Function Deployment) was adopted to translate the consumer's needs into product design parameters. the customer needs for the wear comfort of brassieres were extracted from a survey of 100 women aged 30 - 40. To select which items were critical and which could be traded off for other attributed or benefits. the importance ratings for the customer needs were determined. Customer needs were translated into technical language by various physical test methods and wear tests. The customer competitive assessment was generated by wear tests of 10 commercial brassieres under controlled environmental conditions of 28${\pm}$1$^{\circ}C$, 65${\pm}$3% RH. The relationship matrix between the customer needs and the means of delivering the needs was developed. Using the QFD methodology, design elements for developing a brassiere for middle-aged women could be analyzed and organized efficiently.

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An Initial Design System for the Customer-Oriented Excavator Front with Quality Function Deployment and Axiomatic Design (품질기능전개와 공리설계를 이용한 고객지향 굴삭기 프론트 초기설계 시스템)

  • Jeon, Ki-Hyun;Bae, Il-Ju;Lee, Soo-Hong
    • Korean Journal of Computational Design and Engineering
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    • v.14 no.2
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    • pp.105-114
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    • 2009
  • A design needs various experience and design knowledge through a whole design process. Despite of all efforts and time, it is not easy to introduce a product that meets all customer's needs and expectation in time. To achieve the product goal, designers need a set of sequential process to find appropriate design parameters and ensure customers' needs and requirements. In this research we propose a design methodology for the initial design of an excavator front group with existing QFD(Quality Function Deployment) and Axiomatic Design to satisfy customer's requirements. It turns out that the proposed methodology can support designers more effectively, objectively, and systematically.

Development of Sensible Brassiere for Middle Aged Women -Investigation of consumer's Needs and Evaluation of Commercial Brassiere for the Development of Subjective Measurement Scale and Screening of Design Parameters- (중년 여성의 감성 Brassiere 개발(제1보) -소비자 요구 분석을 기초로 한 제품 디자인 요소 추출-)

  • 김정화;이선영;홍경희
    • Journal of the Korean Society of Clothing and Textiles
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    • v.24 no.5
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    • pp.714-723
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    • 2000
  • The purpose of this study is to develop functional and sensible brassiere for middle-aged women. As a methodology, engineering design process, especially, QFD(Quality Function Deployment) was adopted to translate consumer's needs into product design parameters. Wearing tests of commercial brassiere were performed for the development o subjective measurement scale. The environmental condition was controlled at 28$\pm$1$^{\circ}C$, 65$\pm$3%RH. As results, subjective measurement scale and dimension for the evaluation of sensible brassiere were extracted from factor analysis. Four factors were fitting, aesthetic property, pressure sensation, displacement of brassiere due to movement. Regression equations with the subjective evaluation descriptors were developed for the prediction of wearing comfort of brassiere. (R2=.82) The most critical design parameter was wire-related property and second one was stretchability of main material of brassiere. Also, wearing comfort of brassiere was affected by the interaction of initial stretchability of wing and support of strap.

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A Study on the Function and Design Factors of Mobile Phones for Children (어린이용 휴대폰 기능 및 설계 요소에 관한 연구)

  • Song, Mi-Jin;Sim, Joung-Hoon;Yoon, Hoon-Yong
    • Journal of the Ergonomics Society of Korea
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    • v.28 no.4
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    • pp.51-59
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    • 2009
  • These days mobile phone which were used mainly by grown-up persons are now widely used among children as well due to new social demands. Despite this trend, existing mobile phones are still being designed and produced according to the taste of people in their 20s and 30s, even the elderly, not satisfying physical, emotional and cognitive characteristics raised by children. This study aimed to extract the design factors of mobile phones for children by reflecting functional factors requested by children and parents in QFD's customer demands. First, functional and design factors requested in mobile phones for children were extracted from existing products and documentary records and some functional factors were selected through a process of integration and omission. The survey research was conducted on children and parents, based on the selected functional factors. Based on the survey research, functional factors were analyzed using AHP, and key functional factors considered by children and parents in mobile phones for children were investigated. Finally, in order to reflect the results in QFD, the correlation between functional factors and design factors was constructed as HOQ through experts' evaluation. The results showed that both children and parents recognized the basic functions such as telephoning, text messaging and phone directory as high priority functional factors, even though the relative importance was different between children and parents. Therefore, it is likely to satisfy the desires of both children and parents by designing mobile phones for children in consideration of design factors such as menu depth, button independence and button arrangement. It is expected that this study will promote experiments on design factors and propose basic data for and guidelines to mobile phone design for children.

A Case Study on the Functional Analysis for the Success of New Product Development (신제품개발 성공을 위한 기능분석 적용사례)

  • Park, Roh Gook
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.9 no.4
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    • pp.155-161
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    • 2014
  • The satisfaction of customers from the design stage of product was investigated and reflected by the stage of important function analysis in the enforcement of technique. The goal of this research is worked one reasonable function analysis of the cost reduction and quality enhancement to spread out by using QFD (Quality Function Development). In the case study, the function analysis of VE under the this theoretical background applied to one personal functional combination stimulator. In order to get our goal, the theoretical and case study was in parallel studied each other. This result shows that the new product by using the satisfaction of customers and the quality function development is pointed out the coincidence of the product value.

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Moderating Effects of 3 years over Startup QFD Training Participants' Characteristics on Transfer Intension (창업기업 QFD 교육 훈련 학습자 특성이 학습 전이의도에 미치는 조절 효과에 관한 연구)

  • Hwang, Bo-Yun;Yang, Young-Seok;Kim, Myung-Seuk
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.13 no.4
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    • pp.35-48
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    • 2018
  • This study aims to assess the training effect of QFD(Quality Functional Deployment) program for 3 years over startups, adopted from the conventional QFD widely used in the large companies to break up to a sluggish sales and growth, for employees working in startup whether the participants in startup and venture company taking this lessons into their real tasks or not. In particular, the focus of this study falls on figuring out whether individual characteristics of the participants play a role in moderating effect over transfer intension factors and its link path structure. The research results drive out two significant findings. First, in terms of relationship between the influence of transfer intension by self-efficacy and the validity of training content with the learner's readiness, the moderating effect of demographic features of the participants is effective partially by the sex and fully by their working position, but not statistically significant by age, education, and the prior startup career. This research deliver the following significant implication that the active participation of CEO level, decision-maker guarantee the higher performance of the training program like QFD program, more stresses falling on practical implementation in real business rather than just ending up with career training. This study gives significant policy implication to quasi-government organization running all public startup training projects.

The Evaluation of Expert Knowledge for the Excavator Design Using Measure of Information (정보량에 의한 굴삭기 설계 전문가 지식의 평가)

  • Jang J.H.;Jeon C.M.;Noh T.S.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2005.06a
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    • pp.123-126
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    • 2005
  • We develop the evaluation method of functional requirements for excavator design. The functional requirement of the product can be deduced from voice of customer. QFD method is used in order to convert customer requirement to functional requirement. The measure of information index is used to evaluate quantitatively the product quality characteristics. The correlation score between customer requirements and functional requirements and benchmarking score of competitors are basic data for the measure of information.

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Derivation of JIC based JFC Analysis of the Aegis Korean BMD Using CASE Tool (CASE 도구를 활용한 기능범주 분석 기반 이지스급 함정의 한국적 탄도미사일방어 JIC 도출)

  • Lim, Chong-Su;Kwon, Yong-Soo;Lee, Kyoung-Haing
    • Journal of the Korea Institute of Military Science and Technology
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    • v.13 no.3
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    • pp.421-430
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    • 2010
  • This work describes a derivation process of JIC(Joint Integrating Concept) based JFC(Joint Functional Concept) analysis of an Aegis BMD(Ballistic Missile Defense). JIC is developed through JOC(Joint Operating Concept) and JFC based on capstone strategy and concept. Aegis BMD is a sea-based ballistic missile defense to detect ballistic missile threat, increase engagement battlespace and enable multiple engagement based on Aegis ships. Aegis BMD is a good case of JIC due to performing an Joint operations based on System of Systems under highly complicated NCW environment. This work analyses JFC using QFD(Quality Function Deployment) and UJTL(Universal Joint Task List). From this analysis the JIC of Aegis Korean BMD is derived using a CASE tool.