• 제목/요약/키워드: Process Quality

검색결과 12,689건 처리시간 0.038초

정밀유도무기 품질관리를 위한 공정관리 수행모델에 관한 연구 (A Study on Process Control Modeling for Precision Guided Munitions Quality Control)

  • 김시옥;이창우;차성희
    • 품질경영학회지
    • /
    • 제41권3호
    • /
    • pp.487-494
    • /
    • 2013
  • Purpose: In this study, we propose the precision guided munitions verification methodology using the statistical analysis method has been proposed. and it can be applied to the precision guided munitions quality assurance work. Methods: This modeling is based on Failure Mode and Effects Analysis, Statistical Process Control, Defense Quality Managerment System, Production Readiness Review, Manufacturing Readiness Assesment and so on. Results: The Process Control Modeling that has the following procedures ; searching the critical to quality, statistical analysis by process, verify process. Moreover, the effectiveness of the methodology is verified by applying to the precision guided munitions. Conclusion: To achieve a analysis methods of statistical process control and verify process for precision guided munitions.

수단-목적 사슬 이론을 이용한 의복품질 평가과정에 잔한 이론적 연구 (Apparel Quality Evaluation Process bused on Means- Bnd Chain Theory: A Theoretical Study)

  • 오현정;이은영
    • 한국의류학회지
    • /
    • 제22권4호
    • /
    • pp.452-459
    • /
    • 1998
  • The purpose of this study was to discover a conceptual framework and evaluation process of apparel quality by means-end chain theory. The theoretical study was conducted to find out a conceptual framework and build a hypothetical evaluation process model of apparel quality. Apparel quality was perceived associative network called a means-end chain and was evaluated in several stages. A conceptual framework of apparel quality evaluation was organized into hierarchical relationships among four different dimensions: physical attribute, physical function, instrumental performance, and expressive performance. The means-end structure linked tangible physical attributes and function to more abstract instrumental and expressive performance. A hypothetical evaluation process model linked dimensions of apparel quality to the selected means-end relationship. Different consumers had different means-end chains for the same apparel. Therefore different subjects are likely to have different evaluation paths. From this study we can suggest an evaluation process model of apparel quality.

  • PDF

손실함수를 이용한 다변량 공정능력지수에 관한 연구 (A Study on Multivriate Process Capability Index using Quality Loss Function)

  • 문혜진;정영배
    • 산업경영시스템학회지
    • /
    • 제25권2호
    • /
    • pp.1-10
    • /
    • 2002
  • Process capability indices are widely used in industries and quality assurance system. In past years, process capability analysis have been used to characterize process performance on the basis of univariate quality characteristics. However, in actual manufacturing industrial, statistical process control (SPC) often entails characterizing or assessing processes or products based on more than one engineering specification or quality characteristic. Therefore, the analysis have to be required a multivariate statistical technique. This paper introduces to multivariate capability indices and then selects a multivariate process capability index incorporated both the process variation and the process deviation from target among these indices under the multivariate normal distribution. We propose a new multivariate capability index $MC_{pm}^+$ using quality loss function instead of the process variation and this index is compared with the proposed indices when quality characteristics are independent and dependent of each other.

연속생산공정에서 규격하한과 공정평균의 경제적 설정 (Economic Selection of the Lower Limit and the Process Mean for a Continuous Production Process)

  • 홍성훈;임훈
    • 품질경영학회지
    • /
    • 제23권3호
    • /
    • pp.20-32
    • /
    • 1995
  • This paper is concerned with the economic selection of both the lower limit and the process mean for a continuous production process. Consider a production process where items are produced continuously. All of the items are subject to acceptance inspection. The items for which the measured values of the quality characteristic are larger than the lower limit are accepted, and those smaller than the lower limit are rejected and excluded from shipment. The process mean may be set higher to reduce the costs incurred by imperfect quality. Using a higher process mean, however, results in a higher production cost when production cost is an increasing function of the quality characteristic. Assuming that the quality characteristic is normally distributed with known variability, cost models are constructed which involve production cost, cost incurred by imperfect quality, rejection cost, and inspection cost. Methods of finding optimal values of the lower limit and the process mean are presented and numerical examples are given.

  • PDF

컴포넌트 품질 관리 프로세스 개발 사례 (A Component Quality Assurance Process and its Application)

  • 김길조;장진호;황선명
    • 정보처리학회논문지D
    • /
    • 제8D권6호
    • /
    • pp.699-704
    • /
    • 2001
  • 소프트웨어 컴포넌트 기반 개발을 통해 시스템을 구축하기 위해서는 검정되고 표준화된 컴포넌트가 필수적이다. 본 논문에서는 컴포넌트 개발 시범사업에 적용하기 위해 개발되었던 컴포넌트 품질 관리를 위한 접근방법을 제시한다. 컴포넌트 품질 명세, 품질 계획, 품질 통제, 품질 평가의 4단계로 구성된 품질관리 프로세스는 컴포넌트 개발시 품질 목표를 설정하고 설정된 목표를 달성하도록 유도한다. 이 때 컴포넌트 품질모형은 품질 요구사항을 측정가능한 품질 목표로 변환시키고 개발된 컴포넌트의 품질을 평가하는 근거로 사용하기 위해 제안되었다.

  • PDF

서비스 환경품질과 과정품질이 종업원만족과 고객만족에 미치는 영향에 관한 실증적 연구 : 한국 골프장 산업을 중심으로 (The Effects of Servicescape and Service Process Quality on Employee and Customer Satisfaction : An Empirical Investigation of the Golf Course Business in Korea)

  • 임재풍;이윤숙;박명섭;신호정
    • 한국경영과학회지
    • /
    • 제34권4호
    • /
    • pp.165-183
    • /
    • 2009
  • In a service process, the customer typically experiences two types of interactions; one is interaction with the physical ambiance (servicescape) and the other is with employees who may be responsible for the service process quality. The literature in general supports that process quality is a critical determinant for overall service quality and customer satisfaction. In this paper, we primarily examine how the servicescape intervenes the association between process quality and employee/customer satisfaction. The proposed models are tested. using the data collected from the major golf courses in Korea. The results suggest that improving process quality and servicescape have a positive influence on employee/customer satisfaction directly and/or indirectly, but the effect of servicescape may be stronger in the case of golf course businesses. Servicescape also contributes to improving process quality by enhancing employee satisfaction. These results collectively indicate that management emphasis on improving service quality without renovating physical surroundings may results in unsatisfactory outcome.

데이터 품질관리 프로세스 평가를 위한 프로세스 참조모델 (The Process Reference Model for the Data Quality Management Process Assessment)

  • 김선호;이창수
    • 한국전자거래학회지
    • /
    • 제18권4호
    • /
    • pp.83-105
    • /
    • 2013
  • 데이터의 품질을 평가하기 위해서 데이터 자체의 품질을 측정하는 방법과 데이터 품질을 관리하는 프로세스를 측정하는 방법이 활용되고 있다. 최근에는 조직의 데이터 품질을 보장 및 인증하기 위해 데이터 품질관리 프로세스의 성숙도를 측정하는 방법을 활용하고 있다. 이러한 추세에 따라 본 논문에서는 데이터 품질관리의 프로세스 성숙도를 평가하는데 필요한 프로세스 참조모델을 제시한다. 우선 데이터 품질관리 프로세스 성숙도 평가 모델의 개요를 제시한다. 그리고, 프로세스 성숙도 평가에 기본이 되는 프로세스 참조모델을 제시한다. 여기서는 프로세스 도출 방안, 데이터 품질관리의 기본 원칙, SPICE 프로세스 참조 모델의 기본 개념을 기초로 하여 프로세스 참조모델의 구성과 세부 프로세스를 개발하였다. 그리고 본 모델의 특징 및 개선점을 ISO 8000-150의 프로세스와 비교하여 설명하였다.

직접압연 공정에서 품질계측을 위한 공정변수의 선정 (Determination of the process variables for quality monitoring in direct rolling processes)

  • 배세철;박영준;조형석
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 제어로봇시스템학회 1996년도 한국자동제어학술회의논문집(국내학술편); 포항공과대학교, 포항; 24-26 Oct. 1996
    • /
    • pp.1364-1367
    • /
    • 1996
  • Recently, direct rolling process, called as strip casting process, has been interested in to save production cost by reducing forming processes. In direct rolling process, since a steel strip of thickness 1-5(mm) can be produced directly from molten metal, it can eliminate secondary hot rolling process. On the other hand, since many process variables are existed in this process and relation of these variables is very complex, it is difficult to realize the process design and the quality control. In this paper, as first step to overcome above difficulties, the quantitative relationship of the process variables affected to quality of the strip has been carried out through the numerical analysis. Also, we determined the process variable to monitor the quality in the direct rolling process. As a result, we show that the solidification final point, called as Nip point, was related directly to quality of the strip.

  • PDF

A Study on Data Mining Application Problem in the TFT-LCD Industry

  • Lee, Hyun-Woo;Nam, Ho-Soo;Kang, Jung-Chul
    • Journal of the Korean Data and Information Science Society
    • /
    • 제16권4호
    • /
    • pp.823-833
    • /
    • 2005
  • This paper deals the TFT-LCD process and quality, process control problems of the process. For improvement of the process quality and yield, we apply a data mining technique to the LCD industry. And some unique quality features of the LCD process are also described. We describe some preceding researches first and relate to the TFT-LCD process and the problems of data mining in the process. Also we tried to observe the problems which need to solve first and the features from description below hazard must be considered a quality mining in LCD industry.

  • PDF

품질과 비용의 득실관계를 고려한 품질기능전개 모형 (A Model of Quality Function Deployment with Cost-Quality Tradeoffs)

  • 우태희;박재현
    • 대한안전경영과학회:학술대회논문집
    • /
    • 대한안전경영과학회 2002년도 춘계학술대회
    • /
    • pp.227-230
    • /
    • 2002
  • This paper presents an analytic method of quality function deployment(QFD) that is to maximize customer satisfaction subject to technical and economic sides in process design. We have used Wasserman's normalization method and the analytical hierarchy process(AHP) to determine the intensity of the relationship between customer requirements and process design attributes. This paper also shows cost-quality model the tradeoff between quality and cost as a linear programming(LP) with new constraints that have designated special process required allocating firstly The cost-quality function deployment of piston ring is presented to illustrate the feasibility of such techniques.

  • PDF