• Title/Summary/Keyword: Cost of Quality

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A Model for Power Quality Control Mechanism for Electric Power Market (전력시장체제하에서의 전력품질제어 메커니즘에 대한 모델링)

  • 이근준
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.52 no.7
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    • pp.381-386
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    • 2003
  • To provide a specified power quality under electric market system is becoming an important issue for customers and utility company. However, there is no realistic infra-structure to design a power system for the specified power quality. Present electric market is operating under the economic point of view. The low power price could be attractive, but the effect of low price could result the lower power quality for the long time and threat power system security. This paper presents a model which conceptualize the dynamic power quality control mechanism to minimize total cost of a society which is affected electric power quality. This model aims to produce a basic infra-structure to balance cost and quality under the electric market system.

A Study on the Ratio Analysis of Quality Costs (제조산업에서의 품질비용의 구성비에 관한 연구)

  • 김형준
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.18 no.33
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    • pp.39-43
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    • 1995
  • The purpose of this article was to understand the individual proportion of quality costs which have been expended by manufacturing industries in Seoul and Kyunggido district. The collected data on 72 firms could be use for an empirical analysis and the ratio test was implementented with the questionnaires. The finding were as following : by conparison with the proportion of quality cost in typical manufacturing industrial of U.S., We concluded that total quality cost was occupied with a small portion of sale. Also as compared with the individual item of quality cost, it was noted that the proportion of prevention cost had increased in a relatively large company.

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A Quality Control Model for Shared University in Service Era (서비스시대 공유대학 품질관리모델 연구)

  • Kim, Hyunsoo
    • Journal of Service Research and Studies
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    • v.8 no.4
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    • pp.1-12
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    • 2018
  • This study suggests a way to implement shared economic model of educational service in service era. As most shared economic models are innovating high-cost, low-quality structures in existing economies, there is a need for innovation models that improve high-cost low-quality structures to high-quality, low-cost structures in education services. Especially, since higher education and lifelong education are in urgent need of innovation, this study studied shared university model focused on higher education and lifelong education. In order to provide educational services at low cost and high quality, it is necessary to use idle resources, so it is necessary to introduce a shared economic model. Shared universities require a more efficient and effective supplier quality control, as the existing limited supplier group become widespread. Normative quality control is also needed to cultivate students as competent talent. In addition, in order to provide high-quality higher education services at a low cost, it is necessary to base the process quality management using advanced science and technology. Therefore, educational service quality management is a process of quality control that is well-balanced in terms of suppliers, customers, and processes.

Effects of Food Cost on a Diet Quality (식료품비 수준에 따른 식사의 질)

  • Shim, Jae-Eun;Joung, Hyo-Jee;Paik, Hee-Young
    • Journal of Nutrition and Health
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    • v.39 no.8
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    • pp.832-840
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    • 2006
  • This study was performed to investigate the relationship between diet quality and food cost and identify the effects of food cost on healthy diet among Korean adult. Among the subjects of 2001 National Health and Nutrition Survey 1,641 men and 1,765 women aged from 30 to 49 years were selected and their information of dietary intakes, socio-demo-graphic information, and anthropometric data were analyzed. For the analysis, subjects were classified to quartile based on their daily food cost. Food guidelines provided by Korean Nutrition Society was regarded as a model of healthy diet. Subjects in the lowest quartile of food cost consumed inadequate amount of food from all food categories of the guidelines. Many subjects in the highest quartile not only satisfied the recommended amount of the Food Guide but also seemed to overeat high energy density foods. Even in the highest quartile, about 90% of subjects did not satisfied recommended amount of dairy products. According to the calculated cost of healthy diet, the average cost did not seem to be more expensive than the current mean food cost of the subjects, and most cost-sensitive food intake was observed in the meat fish beans eggs category. The implications of study results were: 1) all the high cost diets did not indicate the high quality of diet, 2) most practical matter of healthy diet in low income group seemed whether they could afford the expense of meat and fish, 3) nutrition education was required to most subjects for healthy diet.

A Study on the Classification of Ietms concerned Quality Cost and the Method of Calculation (품질비용의 항목분류와 산출방법에 관한 연구)

  • 강지호
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.18 no.35
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    • pp.17-24
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    • 1995
  • The classification of quality costs by item is essencial to sum up the entire quality cost but the reality of classifying the quality cost by the firm is facing with difficulty in terms of grouping the concerned items. Meanwhile, the classification of items and calculating method of quality costs should be prepared in adcance with a certain standards and or regulations to figure out the accurate quality costs successfuly. This case study provides the contents of quality costs calulated by item and the method of calculation in detail which is applicable to automobile component industry md, also introduce how to set up the computing system of quality costs.

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A Study on the Affecting Factors and Effects of Switching Costs in On-line shopping mall (온라인 쇼핑몰 전환비용의 영향 요인과 효과에 관한 연구)

  • Han, Pil Koo;Kang, Seong Chul;Jun, Byoung Ho
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.7 no.3
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    • pp.137-150
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    • 2011
  • Long-term customer retention strategies with switching cost is very important for gaining a competitive advantage in on-line shopping mall environment. The purpose of this study is to investigate the affecting factors of switching cost in terms of on-line shopping mall's quality and the effects of it on customers' behavior moderating commitment. According to the result, information quality and customized information were found to be significantly related to social switching cost, and also royalty program and product differentiation were found to be significantly related to lost benefit cost and procedural cost respectively. When it comes to the relationship between switching cost and commitment, results shows that social switching cost is not significantly related to affective commitment. Lost benefit cost and procedural cost, however, were found to be significantly related to affective commitment and calculative commitment respectively. Finally, affective commitment was found to bolster repurchase intention and control negative WOM, and calculative commitment was found to bolster both repurchase intention and negative WOM.

A Study on the Impact of the RTE Characteristics for SCM Performance (RTE 특성이 SCM성과에 미치는 영향)

  • Chang, Hwal-Sik;Jun, Jong-Hyun;Park, Kwang-Oh
    • The Journal of Information Systems
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    • v.20 no.3
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    • pp.161-186
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    • 2011
  • To date, SCM research has mainly focused on the effects of controlled variables on SCM success and emphasized adoption strategies and critical success factors. Consequently, the effects of more uncontrolled variables such as partnership between SCM partners have been largely ignored. The purpose of this study, therefore, is to examine the effects of both controlled variables and uncontrolled variables on SCM performance through affecting RTE characteristics. The six factors examined in this study include Quality of information, partnership quality, Forecasting, Agility, Visibility, and SCM performance. In this study, SCM Performance was divided into three categories: Quality Performance, Cost Performance, Delivery Performance. All factors were examined from the perspective of part suppliers. The results of this study can be summarized as follows. First, SCM information quality positively affected SCM partnership quality, Forecasting, Agility, Visibility. Second, SCM partnership quality positively affected Forecasting, Agility. But, SCM partnership quality showed no significant effect on Visibility. Third, Forecasting had a significant impact on SCM performance. According to the detailed result of measuring SCM performance with Quality Performance, Cost Performance, Delivery Performance, although Forecasting affects Cost Performance, Delivery Performance directly, it does not affect Quality Performance directly. Fourth, Agility also had a significant impact on SCM performance. According to the detailed result of measuring SCM performance, Agility has significant impact on Quality Performance, Cost Performance, Delivery Performance. Fifth, Visibility, as expected, had a significant impact on SCM performance. According to the detailed result of measuring SCM performance, Visibility has significant impact on Quality Performance, Cost Performance, Delivery Performance.

A Study on the Determination of a Minimum Cost Sampling Inspection Plan for Destructive Testing (파괴검사(破壞檢査)에 있어서의 최소비용(最少費用) 샘플링 검사방식(檢査方式)의 결정(決定)에 관한 연구(硏究) - 계수파괴(計數破壞) 1회검사(回檢査)를 중심(中心)으로 -)

  • Hwang, Ui-Cheol;Jeong, Yeong-Bae
    • Journal of Korean Society for Quality Management
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    • v.8 no.2
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    • pp.15-22
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    • 1980
  • This paper deals with the problem of determining a minimum cost sampling inspection plan for a single destructive testing by attribute. The cost for inspection lot is constructed by following three cost factors: (1) cost of inspection, (2) cost of accepted defective, (3) cost of rejected lot Using Hald's Bayesian approach in a single non-destructive testing, procedure's for finding the minimum cost single destructive sampling inspection plan by attribute are given. Assuming the uniform distribution as a prior-distribution and using numerical analysis by computer, a minimum cost single destructive sampling inspection plan by attribute for several lot sizes, unit cost, destructive testing cost, and salvage cost is given.

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An Economic Life Test Sampling Plan for Repairable Products with Exponential Interfailure Time Distribution

  • Kwon, Young Il
    • Journal of Korean Society for Quality Management
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    • v.21 no.1
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    • pp.108-120
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    • 1993
  • In this article an economic life test sampling plan is considered for repairable products when the products in each lot have the same interfailure time distribution, but the mean time between failure (MTBF) of a lot varies from lot to lot according to a known prior distribution. A cost model is constructed which consists of test cost, accept cost, and reject cost. Determination of the optimal plan which minimizes the expected average cost per lot is discussed. Numerical examples are presented to illustrate the use of the proposed sampling plans and sensitivity analyses for parameters of the prior distribution are performed.

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A Study on the Economic Life for the Three Types of Military Wheeled Vehicles (군용 기동장비 3종(${\frac{1}{4}}$톤, $1{\frac{1}{4}}$톤, $2{\frac{1}{2}}$톤) 차량의 경제수명 산출에 관한 연구)

  • Paik, Soon-Heum;Lee, Yoon-Soo;Kim, Kyung-Yong;Na, Il-Yong;Jung, Joon-Sik;Hong, Moon-Hee
    • Journal of Applied Reliability
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    • v.8 no.3
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    • pp.135-144
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    • 2008
  • The economic life for three types of military wheeled vehicles with load capacities of 1/4, $1{\cdot}1/4$, and $2{\cdot}1/2$ tones has been evaluated on the basis of the equivalent acquisition and operating costs. The economic life of wheeled vehicles were calculated from 12 to 18 years by using the annual equivalent cost method. The equivalent cost was decided at the lowest point of the total amount of equivalent acquisition cost and operating cost. The operating cost were collected from the field data. The evaluated economic life can be very useful for deciding the total life cycle of these three types of military vehicles. The annual equivalent cost method may be also applied to other military equipments such as communication electronics, weapon systems, and other type of vehicles.

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