• 제목/요약/키워드: Quality function deployment (QFD)

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QFD를 이용한 비정형 거푸집 제작 시스템 개발 기초연구 (A Preliminary Study to Develop Manufacturing System of Free-Formed Form using QFD)

  • 이동윤;홍준호;조훈희;강경인
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2017년도 춘계 학술논문 발표대회
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    • pp.60-61
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    • 2017
  • In free-formed formwork, there is a problem that the productivity of the construction is deteriorated due to the expensive form, the long manufacturing period, and the high degree of construction difficulty. In order to solve these limitations, there is a need to research improvement from the phase of manufacturing free-formed form. Therefore, this study is to derive significant technical characteristics using QFD approach as a preliminary study to develop manufacturing system of the free-formed form for improving the productivity of free-formed construction formwork. This study employs the QFD to reflect users' needs into technical characteristics, and analyze correlation between users' requirements and the technical characteristics, then weights them by their importance.

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QFD를 이용한 대학생들의 교과목 선택에 관한 분석( I ) (Analysis on the Choice of Subjects of University Students Using QFD( I ))

  • 임영문;이정기
    • 대한안전경영과학회지
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    • 제2권3호
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    • pp.117-128
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    • 2000
  • Initially, QFD (Quality Function Deployment) was introduced in 1972 to help design supertanker in Mitsubish's shipyards in Kob, Japan and formally defined by the American Supplier Institute in 1987 as a system for translating consumer requirements into appropriate company requirements at every stage, from research, through product design and development, to manufacture, distribution, installation, and marketing, sales and services. Although QFD has complex and tedious procedure to complete, since 1972, it has now been used by Japanese, American, and European because of its fruitful merits. The objective of this paper is to provide and analyze the trend on the choice of cultural subjects of university students using QFD. The data are collected by questionnaires. The samples for this study are randomly chosen from the universities in Seoul, Kangnung, and Samchok during 3 months (2000. 3 ∼ 2000. 5). The results of this study will play an important role not only for service of students but also for opening of subjects.

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QFD 전개에 의한 전자파 차단도료 설계 특성 결정 방법 ; S사 사례연구 중심으로 (Using QFD implementation to decide for design of electronic wave shielding paint characteristics)

  • 박재현;강경식;이광배
    • 대한안전경영과학회지
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    • 제2권4호
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    • pp.139-151
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    • 2000
  • Developing a new commercial product, it is need to connect the end users demand of quality to the industrial technology of company. For this reason, this study is to build up the users demand for the imminent marketing product of a certain company by Analytic Hierarchy Process, analyze quantitatively users subjective thoughts collected by Group Consensus, calculate the added-value of users demands and verify the consistency of users opinions by consistency-exponential-calculation. The added value obtained by this method is substituted into a user-demand item of Quality Function Deployment. And, the technical characteristic data transferred from the extracted essential factor for developing and manufacturing a new product is substituted into a technical characteristic item of QFD. The faculty of quality is firstly finished by this procedure. But, because the relation a technical characterization with users demand do not be known in new product, Wassermans method was introduced for the correlation users demand with technology and for the processing and marketing of a new product. The all assumption on this thesis was based on the reliable real data of a certain company.

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품질기능전개(QFD)를 이용한 의류제품 디자인 설계요소 연구 -중.노년층여성정장의 의류제품품질을 중심으로- (A Study on Apparel Product Design Elements Applied to Quality Function Deployment -Focused on Middle-Aged and Aged Women's Formal Wear-)

  • 노영;박재옥
    • 한국의류학회지
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    • 제32권10호
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    • pp.1509-1521
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    • 2008
  • The subjects of this study were middle-aged women in their 40s$\sim$50s and older women aged 60 and over who were living in Seoul and Kyonggi-do, Korea. Through studying the participants' responses to the questions regarding the attributes of apparel quality in terms of the levels of satisfaction and importance, the target consumers' demand has been studied. And, they are applied to a QFD Matrix, to find out the relationship between the attributes of product quality and the guidelines of clothing design. For this study, apparel product quality is composed of five parameters: practicality, aesthetics, brand image, ease of care and fit. For the parameters of apparel product quality, the result of this study show that product improvements are needed in fit, aesthetics and practicality(in order of importance). The level of satisfaction(how satisfied consumer feels) was marked higher in brand image than that of importance(how important it is). To review demands for the apparel product attributes of formal suits for middle-aged and older women, the priority of these attributes through QFD Matrix that shows the relationship between the attributes and dress elements emphasized by designers has been examined. Material was the most important design element in designing formal suits. The shape of the pants was the second because the harmony between the jacket and the pants is important in formal suits. These were followed by trim and color tone of the jacket.

품질기능전개(Quality Function Deployment)를 활용한 외래 간호지식경영 시스템의 개발과 평가 (A Development and Evaluation of Nursing KMS using QFD in Outpatient Departments)

  • 이한나;윤은경
    • 대한간호학회지
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    • 제44권1호
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    • pp.64-74
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    • 2014
  • Purpose: This study was done to develop and implement the Nursing KMS (knowledge management system) in order to improve knowledge sharing and creation among clinical nurses in outpatient departments. Methods: This study was a methodological research using the 'System Development Life Cycle': consisting of planning, analyzing, design, implementation, and evaluation. Quality Function Deployment (QFD) was applied to establish nurse requirements and to identify important design requirements. Participants were 32 nurses and for evaluation data were collected pre and post intervention at K Hospital in Seoul, a tertiary hospital with over 1,000 beds. Results: The Nursing KMS was built using a Linux-based operating system, Oracle DBMS, and Java 1.6 web programming tools. The system was implemented as a sub-system of the hospital information system. There was statistically significant differences in the sharing of knowledge but creating of knowledge was no statistically meaningful difference observed. In terms of satisfaction with the system, system efficiency ranked first followed by system convenience, information suitability and information usefulness. Conclusion: The results indicate that the use of Nursing KMS increases nurses' knowledge sharing and can contribute to increased quality of nursing knowledge and provide more opportunities for nurses to gain expertise from knowledge shared among nurses.

시간별 부하자료의 신뢰도를 고려한 부하구성비 추정 및 데이터 품질 향상 방안에 관한 연구 -산업용 부하를 중심으로- (A Study on the Load Composition Rate Estimation Considering Reliability of Hourly Load Data and a Method for Enhancement of Data Quaility)

  • 황성욱;김정훈
    • 대한전기학회논문지:전력기술부문A
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    • 제55권2호
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    • pp.67-69
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    • 2006
  • A load composition rate estimation algorithm is developed for DSM evaluation system. The algorithm has the structure which is composed of data verification and development and can enhance the data quality Also a hourly weighting function is introduced for maintaining load shapes. The load composition rates of specific industrial customers are obtained and the results of case studies show that a reasonable load composition rate is achieved. Additionally qualify function deployment (QFD) is introduced to enhance quality and reliability of data.

QFD-FMEA를 이용한 해체공사의 위험평가와 근본원인의 분류 방법 (Assessing Risks and Categorizing Root Causes of Demolition Construction using the QFD-FMEA Approach)

  • 유동욱;임남기;전재열;조재호
    • 한국건축시공학회지
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    • 제23권4호
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    • pp.417-428
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    • 2023
  • 사고 원인에 대한 철저한 분석은 사고 재발 방지를 위한 필수적인 과정이다. 해체공사 사고의 원인을 살펴보면 작업자의 불안전한 행동, 불안전한 상태, 심리적·신체적 상태, 현장관리 원인 등 매우 다양하다. 현재 해체공사 사고통계는 지속적으로 조사·보고되고 있으나 사고 유형에 따른 보다 근본적인 원인 분류 정보가 필요하다. 본 연구에서는 하인리히의 도미노 이론을 바탕으로 해체공사 사고의 유형에 따라 사고원인(불안전한 행동, 불안전한 조건)과 휴먼에러(인적요인)를 분류하였다. 본 연구에서는 해체공사시 사고유형에 따라 사고원인을 체계적으로 분류하기 위해 QFD-FMEA(Quality Function Deployment - Failure Mode Effect Analysis) 3단계 모델을 사용하였다. 사고원인 분류 결과는 사고예방을 위한 안전지식 및 체크리스트로 활용할 수 있다.

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

  • 박노국
    • 벤처창업연구
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    • 제9권4호
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    • pp.155-161
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    • 2014
  • 본 연구에서는 신제품개발의 실시에 있어서 가장 중요한 기능분석의 단계를 제품의 설계 단계에서부터 소비자의 만족도를 조사하여 반영하였다. 품질기능전개를 이용하여 전개함으로서 원가절감과 품질개선의 합리적인 기능분석을 실시하고자 하는데 그 목적이 있다. 가치공학과 품질기능전개(QFD: Quality Function Deployment) 의 상호연계에 대한 필요성과 적합성을 분석하였다. 사례연구에서는 이러한 이론적인 배경 하에 품질기능전개를 이용하여 VE 기능 분석을 의료기기 제품에 적용하였다. 본 연구결과 소비자의 만족도와 품질기능전개를 이용하여 나타난 제품의 가치가 연구결과와 일치하고 있음을 파악하였다.

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공간 빅데이터 핵심서비스 선정에 관한 연구 (A Study on the Selection of Core Services for Geo-Spatial Big Data)

  • 이명호;박준민;신동빈;안종욱
    • 한국측량학회지
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    • 제33권5호
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    • pp.385-396
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    • 2015
  • 본 연구의 목적은 공간 빅데이터의 요구사항을 기반으로 서비스 분야 및 분석기능의 우선순위를 도출하고, 핵심 서비스를 선정하는 것이다. 이를 위하여 선행연구 검토를 통해 공간 빅데이터 서비스 수요조사 방법을 설정, 산·학·연 전문가를 대상으로 설문조사를 실시하였다. 그 결과, 공간 빅데이터 서비스 분야 및 분석 기능에 대한 요구사항을 도출하였다. 이를 기반으로 품질기능전개 기법(QFD, Quality Function Deployment)을 활용하여 1순위부터 4순위까지 (사회, 환경, 경제, 인문)총 4개 분야의 서비스와 우선순위를 도출하였다. 그 중 1. 2순위 분야와 분야 별 요구되는 분석기능을 선정하였다. 이러한 결과로, 핵심서비스모델(안)을 제시하였으며, 향후 분야별 핵심서비스가 개발될 것으로 기대한다.

Project scheduling by FGP to Time-Cost-Quality trade off: construction case study

  • Faregh, Najmeh;Ketabi, Saeedeh;Ghandehari, Mahsa
    • Journal of Construction Engineering and Project Management
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    • 제4권3호
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    • pp.53-59
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    • 2014
  • Project managers are responsible to conduct project on time with least amount of costs and the most possible quality with respect to shortage of resources and environmental certainties. They have to make the best decision to reach such conflicting objects. In this study the project scheduling with multi goals-multi modes was planned in fuzzy conditions under resource constraints and expanded by fuzzy goal programing (FGP). The project cost was calculated by the price of renewable resources and the quality criteria were evaluated by the quality function deployment method (QFD). Finally the model was verified by a construction case study with 22 activities along with solving by GAMS. The results showed that this model could provide a systematic framework to facilitate the decision making process and made the project managers to be able to schedule the project closer to reality.