• 제목/요약/키워드: defect management

검색결과 636건 처리시간 0.029초

공동주택 시설공사별 하자유형 분석과 품질 혁신 방안 (A Study on the Defect Types and Quality Innovation Methods for Apartment Houses)

  • 주재현;방홍순;최병주;김옥규
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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    • pp.155-156
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    • 2018
  • Apartment houses are now a popular form of general housing, and the construction techniques and materials quality used to construct apartments are also continuously evolving as if they were representative. However, issues concerning flaws are constantly being reported in the press. This study attempts to analyze the trend of conflicts related to defects and to analyze the types of defects received in the apartment building, to suggest the development of the integrated defect management system, and to develop the construction based on the development of the system.

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스크리닝 검사로부터 불량률 추정에 관한 연구 - 알려지지 않은 민감도와 특이도의 경우 - (Estimation of Defect Rate from the Screening Test - the case of unknown sensitivity and specificity -)

  • 김태규
    • 품질경영학회지
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    • 제30권1호
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    • pp.144-151
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    • 2002
  • Consider the problem of estimating the confidence interval of defect rate of a specified population through a screening test. Relationship between defect rate of the population and sensitivity and specificity of the screening test is discussed. More general statistical problem is introduced with the assumption of unknown imperfect specificity. An improved version of Hogan & Gladden(1978)'s estimator is proposed and discussed. Simulation studies are performed to compare the efficiency of the proposed estimator with current estimators.

제품안전경영을 위한 로드맵과 단계별 실행모형 (A Stepwise Approach to Product Safety Management)

  • 노형봉;이정희
    • 품질경영학회지
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    • 제37권3호
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    • pp.83-93
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    • 2009
  • This study proposes a stepwise approach to product safety management(PSM), of which roadmap consists of five phases. ISO 9001 QM model is assumed as the first-phase model and each higher-phase model is built by adding a corresponding module to the lower one. In the phase order, those modules are CCMS, a failure to warn, manufacturing defect and design defect. The progress in PSM of a domestic food company is discussed.

BPMN 모델링 방식을 활용한 공동주택 하자진단 업무프로세스 모델 (The Defect Diagnosis Process Model Utilizing BPMN Modeling Method in the Apartment Housing)

  • 정려원;김경환;이정석;김재준
    • 한국주거학회논문집
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    • 제26권2호
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    • pp.67-79
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    • 2015
  • As the Korean construction market in the apartment housing has changed to a housing consumer focused market, interest and importance on efficient use and management on existing buildings has increased rather than demand for new buildings. Interest of housing consumers on apartment house quality has increased in this market paradigm, and this spontaneously is connected to quality flaw related defect disputes and lawsuits that the importance of defect diagnosis has continuously increased. This defect diagnosis is directly connected to maintenance charges in defect dispute and lawsuit processes that rather objective and highly credible progress of duty is required. However, most defect diagnosis firms today that progress defect diagnosis are using different diagnosis methods and depend on the experience of experienced professionals that there is no standardized defect diagnosis process. Therefore, the purpose of this study is to provide common defect diagnosis process model for defect diagnosis firms utilizing the BPMN (Business Process Modeling Notation) modeling method. It is expected that this will contribute to professional and reliable task performances of concerned defect diagnosis workers. Furthermore, it is expected that design lawsuit damage will be substantially reduced by standardizing defect diagnosis processes.

효율적 작업자 실수 예방 관리 사례연구 (A Case Study on Efficiency Worker blunder Preventive Management)

  • 유병우
    • 대한안전경영과학회지
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    • 제8권1호
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    • pp.27-42
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    • 2006
  • Considering in view of China's low price and Japan's high technology, the most important point is the quality of product. To increase the comparative power internationally all workingmen have to fulfill the responsibility to maximize the quality, and this is possible practiced under 'Zero Defect' spirit. To reduce the defect ratio to 'Zero' the workingmen have to recognize own fault, all the manufacturing process should be conducted under 'Fool Proof System', If done under this circumstances, then labor force can work comfortably and safely without nervousness and tiresome. The productivity and quality can increase ultimately and even foreign labor, imbecile child, old-aged labor can participate in work, which can reduce shortage of labor source. Therefore, in this study all defects in manufacturing process, it would be recognized the errors and mistakes caused by human.

요구사항단계의 결함관리를 위한 방법론에 관한 연구 (A Study on the Methodology for Defect Management in the Requirements Stage)

  • 이은서
    • 정보처리학회논문지:소프트웨어 및 데이터공학
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    • 제9권7호
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    • pp.205-212
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    • 2020
  • 결함은 소프트웨어의 품질에서 중요한 요소가 된다. 결함을 관리하기 위하여 검색과 분류의 추가적인 정보를 제안하고자 한다. 추가적인 정보는 체계적인 분류체계와 연산방법을 제시한다. 본 연구에서는 결함관리를 위하여 요구사항 분석 단계의 추가적인 정보를 제시하고자 한다.

S-parameter의 변화를 유도하는 임피던스 변화 감지를 통한 전자회로의 결함검출회로 (The defect detection circuit of an electronic circuit through impedance change detection that induces a change in S-parameter)

  • 서동환;강태엽;유진호;민준기;박창근
    • 전기전자학회논문지
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    • 제25권4호
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    • pp.689-696
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    • 2021
  • 본 논문에서는 고장예측진단 및 건전성 관리 기법(Prognostics and Health Management, PHM)을 적용하기 위해 해당 시스템 혹은 회로 내부에서 결함특성을 감지하고 예측할 수 있는 회로 구조를 제안하였다. 기존 연구에서 회로 결함의 진행에 따라, S-parameter 크기 최소값의 주파수가 변화하는 것을 확인하였다. 이러한 특성을 기존에는 네트워크 분석기(Network Analyzer)를 활용하여 측정하였으나, 본 연구에서는 같은 결함검출기법을 활용하더라도 큰 계측장비 없이 결함의 진행상황 및 잔여 수명, 결함발생 여부를 확인할 수 있는 소형화된 회로를 설계하였다. 본 연구에서는 S-parameter의 변화를 야기하는 임피던스의 변화를 감지할 수 있도록 회로를 설계하였으며, Bond-wire의 온도반복에 따른 S-parameter 변화 측정결과를 제안하는 회로에 적용하였다. 이를 통해 해당 회로가 Bond-wire의 결함을 감지할 수 있다는 것을 성공적으로 검증하였다.

공동주택 층간균열의 하자판정 및 보수공법 적용에 대한 개선방안 (Improvement Measures for the Defect Determination and the Application of Repair Method for Interlayer Cracks in Apartment Houses)

  • 최상진;신만중
    • 한국건설관리학회논문집
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    • 제23권5호
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    • pp.23-33
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    • 2022
  • 공동주택의 하자소송 금액에서 가장 많은 비율을 차지하고 있는 균열하자는 하자판정 기준이 명확하지 않아 판결에 따라 하자에 관한 판단이 엇갈리고 있다. 균열하자 판결금액 대부분을 차지하는 층간균열은 균열의 폭이나 상태와 관계없이 모두 하자로 판정되는 추세이며, 보수공법 또한 대부분 일률적으로 정해지고 있다. 이는 균열하자 판정의 기준이 되는 국토교통부의 하자판정기준과 법원에서 기준을 삼는 건설감정실무의 기준이 일치하는 않는 문제에서 출발한다. 법령의 개정과 법원감정실무지침서의 개정 등을 통해 모든 이해관계자가 적용할 수 있는 하자판정 기준의 수립이 필요하다. 또한, 층간균열 보수공법 기준은 층간균열의 폭과 상태에 따라 공법을 적용할 필요성이 있다. 균열에 대한 하자판정과 보수공법적용을 합리화한다면 소송에만 의존하는 현재의 하자분쟁 추세를 바꿀 수 있는 계기가 될 수 있을 것이다.

한국산업의 계측투자실태분석 (An Analysis on the status of Measurement Investment in Korean Industry)

  • 김동진;남경희
    • 품질경영학회지
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    • 제20권2호
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    • pp.76-93
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    • 1992
  • The purpose of this study, by surveying the status of firms, measurement-related investment and the defect rate, is to analyze the effect of measurement-related investment and to propose a scheme of efficient measurement-related investment which reduces the defect rate. For this project we obtain the data of the status of the measurement-related investment and the defect rate of 928 firms in Korean manufacturing industry by mailing survey. One of our results shows that the firms which have measurement standard laboratory, i.e, which invest in measurement-related area comparatively high, have the defect rate about 0.8% lower than those firms which don't have measurement standard laboratory. Also we find that the small-and-middle size firms have worse measurement-related facility than the large firms and the firms in the heavy-chemical industry have higher measurement-related investment effect than the firms in the light industry.

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산업안전 분야에서의 PL사고유형 분석 (Analysis on the Case of PL Accident in the Area of Industrial Safety)

  • 홍한국;강병영
    • 한국안전학회지
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    • 제20권2호
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    • pp.140-145
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    • 2005
  • The PL(Product Liability) Law has been going into effect in Korea since July 2002. Accordingly, a company's responsibility for customers who are damaged by the defect in the product safety has been gradually strict and imposed burden on management. Not only general consumers but also labors who work with machine in the field of production are included in the concept of victim of the PL Law. That is to say, when a worker is damaged by the defect of machine he can institute a PL lawsuit more aggressively, not just get the industrial accident compensation as usual, only if not his own fault but the defect of machine used in the course of production can be demonstrated. This paper intends to present suggestions to PL prevention of manufacturing companies of industrial machine through the case research of PL accidents in the area of industrial safety.