• Title/Summary/Keyword: Design quality

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A Study on Design of Production System Using Multiple Characteristics Robust Design in Uncertain Environment (불확실한 환경에서의 다특성치 강건설계를 이용한 생산시스템 설계에 관한 연구)

  • 양광모;서장훈;박진홍;강경식
    • Proceedings of the Safety Management and Science Conference
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    • 2004.05a
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    • pp.61-65
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    • 2004
  • As technique that can contribute in quality improvement in design process to overcome shortcoming of traditional quality control, call design or development department quality control activity that is achieved to reduce gun damage shuddering at circle minimizing change or side effect of product performance as off-line quality control. This paper discuss optimal process design of investment projects expansion and replacement investment on each line or individual in the production. Generally optimal plant design has add to a few method by Subsidiary means with use a especial method. And then in this paper, a Robust design is presented, which may be effective to the processes appraisal or improvement. We propose that should make a optimal plant design model for reducing field failure rate to assign by real data on different factors in plant system. Using this model, robust design of taguchi method used in this comprehensive method for reducing field failure rate in plant system.

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Determination and Analysis of Signal-to-Noise Ratios for Parameter Design with Dynamic Characteristics (동특성 파라미터설계를 위한 SN비의 결정 및 분석)

  • 김성준
    • Journal of Korean Society for Quality Management
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    • v.26 no.2
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    • pp.17-26
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    • 1998
  • Taguchi's parameter design is a method for quality improvement by making the performance fo a system robust to noise. Parameter design with dynamic characteristics has been recently the subject of much interest. This paper is concerned with a review and a generalization of the Signal-to-Noise (SN) ratio, a quality measure for parameter design with dynamic characteristics, proposed by Taguchi. We present a method for determination and analysis of the generalized SN ratio and illustrate its implementation by example.

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Strategies for Robust Design with Multiple Responses

  • Hwang Inkeuk;Chung Lakchae
    • Journal of Korean Society for Quality Management
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    • v.25 no.2
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    • pp.28-46
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    • 1997
  • This paper considers robust design strategies for off-line quality control, with the use of experimental design and response surface methodology, in situations where all products have multiple quality characteristics. These strategies can be developed using the desirability concept of desirability functions to determine the settings of the design factors, not only to get the average performances on target but also to minimize variability around the target values.

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A Systematic Process of Product Design Based on Customer Preferences

  • Chun Young H.;Baek Ingie;Jung Eui S.
    • Proceedings of the Korean Society for Quality Management Conference
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    • 1998.11a
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    • pp.325-332
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    • 1998
  • In the context of total quality management, customer satisfaction is a key factor of success. Customer needs have been in the past described with rather vague words. In order to lead in the competitive market, product designers must be willing to interpret and reflect customer perceptions of a product on the design. The objective of this research is to develop a systematic process capable of linking customer preferences on a product to the design of product elements or specifications. The design process consists of multivariate statistical analyses, semantic differentials, and multidimensional scaling techniques under the framework of a methodology known as quality function deployment which is frequently used to construct a quality design process. The process being established is expected to serve as an effective means to communicate between the customer and the designer through proper representational schemes of design elements.

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Optimal Design in cylindrical cup drawing by forming analysis (원형컵 드로잉의 성형해석에 의한 최적설계)

  • 정완진;김종호
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2003.05a
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    • pp.393-396
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    • 2003
  • A systematic investigation for the process design in deep drawing is necessary to improve the quality of drawn cups. This study concentrates mainly on the influence of process design strategy on the product quality. Several types of process design were chosen from initial blank of 100mm in diameter to make final cup of 50mm in diameter. Forming analysis are carried out to find out optimal design in terms of drawing force. We assume that the case which shows minimum drawing force in the subsequent operations is the best case. Through experiments it is found that the case which shows minimum drawing force also results in minimum drawing force and better product quality than other case. Thus, it is shown that this design strategy is very effective in the improvement of quality in drawn cups.

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A Systematic Process of Product Design Based on Cutomer Preferences (소비자의 선호도에 근거한 체계적 제품설계 절차)

  • 전영호;백인기;정의승
    • Journal of Korean Society for Quality Management
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    • v.27 no.3
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    • pp.142-153
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    • 1999
  • In the context of total quality management, customer satisfaction is a key factor of success. Customer needs have been in the past described with rather vague words. In order to lead in the competitive market, product designers must be willing to interpret and reflect customer perceptions of a product on the design. The objective of this research is to develop a systematic process capable of linking customer preferences on a product to the design of product elements or specifications. The design process consists of multivariate statistical analyses, semantic differentials, and multidimensional scaling techniques under the framework of a methodology known as quality function deployment which is frequently used to construct a quality design process. The process being established is expected to serve as an effective means to communicate between the customer and the designer through proper representational schemes of design elements.

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DESIGN MANAGEMENT FOR CONSTRUCTABILITY REVIEW OF HIGH QUALITY EXPOSED CONCRETE

  • Doo Won Hwang;Young woong Song;Yoon ki Choi;Dong Woo Shin;Jae Youl Chun
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.1154-1157
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    • 2005
  • This report is to do design management for constructability review of high quality exposed concrete, which is used increasingly in recent. To secure systematic management at design phase, we reviewed each definition and work at each design phase, we define high quality exposed concrete, a part of architectural concrete, as "an exposed concrete which has well ordered joint & is in pursuit of smooth surface." We reviewed requirements and influential factor to obtain High quality finishing surface and compared construction process of high quality exposed concrete with that of other finishing method. Management method at each design phase for constructability review to meet additional works and requirements is presented.

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Analyzing the Causal Relationship between Qualities, Satisfaction, and Trust in Public Services: an Intermediary Customer Perspective (공공서비스 중간고객의 품질, 만족, 신뢰의 인과모형 분석)

  • Rha, June-Young
    • Journal of Korean Society for Quality Management
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    • v.38 no.3
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    • pp.378-390
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    • 2010
  • From the perspective of employees working for public service agencies, we analyzed the causal relationship between service quality, relationship quality, design quality, customer satisfaction, and trust in public services. We conduct statistical analyses on the quality attributes we derived from a critical incident technique(CIT) analysis and build a measurement model, which has a second-order hierarchical structure. Survey data was collected from social work, childcare, and healthcare services. Using a structural equation modeling method, we identify a causal model and simultaneously estimate factor loadings and path coefficients. We find that all the quality dimensions are antecedents to satisfaction and then satisfaction precedes trust. The results show that service quality and design quality mediate in parallel the effect of relationship quality on satisfaction and both relationship and design qualities have stronger effects on satisfaction rather than service quality.

Analysis of Strategies for Quality Assurance in Online Education: The Implications of the Role of an Instructional Design Team to Support Faculty

  • Jeeyoung CHUN;Sookyung LEE
    • Educational Technology International
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    • v.24 no.1
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    • pp.53-80
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    • 2023
  • This study investigates faculty support for quality assurance in online education, and offers suggestions for its improvement based on feedback from Instructional Design (ID) staff working at a public university in the U.S. Qualitative research using semi-structured interviews was conducted with seven ID staff in order to examine their perceptions regarding faculty support related to quality assurance in online education. The results of the data analysis indicate that four types of faculty support-quality assurance reviews using Quality Matter (QM) standards, templates, individual consultations with ongoing support, and monitoring-were offered for faculty. Faculty support for quality assurance in online education could be improved by developing specific quality assurance standards, recruiting external experts, examining learning effects, developing a quality assurance management system, and sharing documents among ID staff. This study highlights the necessity of quality assurance in online education and provides cases of faculty support in a real higher education setting.

Simultaneous Optimization of Multiple quality Characteristics to Robust Design using Desirability Function (로버스트 설계에서 기대함수를 이용한 다특성 동시 최적화 방안)

  • Kwon, Yong-Man;Park, Byung-Jun
    • Journal of Korean Society for Quality Management
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    • v.27 no.2
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    • pp.126-142
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    • 1999
  • Robust design is an approach to reducing performance variation of quality characteristic values in quality engineering. Taguchi has an idea that mean and variation are handled simultaneously to reduce the expected loss in products and processes. Taguchi parameter design has a great deal of advantages but it also has some disadvantages. The various research efforts aimed at developing alternative methods. In the Taguchi parameter design, the product-array approach using orthogonal arrays is mainly used. However, it often requires an excessive number of experiments. An alternative approach, which is called the combined-array approach, was suggested by Welch et. al. ( 1990) and studied by others. In these studies, only single quality characteristic was considered. In this paper we propose how to simultaneously optimize multiple quality characteristics using desirability function when we used the combined-array approach to assign control and noise factors. An example is illustrated to show the difference between the Taguchi's product-array approach and the combined-array approach.

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