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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society for Quality Management
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Journal DOI :
The Korean Society for Quality Management
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Volume & Issues
Volume 31, Issue 4 - Dec 2003
Volume 31, Issue 3 - Sep 2003
Volume 31, Issue 2 - Jun 2003
Volume 31, Issue 1 - Mar 2003
Selecting the target year
An Empirical Study on the Six Sigma's Effects on Quality Circles
Journal of the Korean Society for Quality Management, volume 31, issue 1, 2003, Pages 1~10
In 1999, Six Sigma was introduced into Korea and after that it had general influence on company-wide management system. Quality Circles apply the various quality problem solving techniques such as QC 7 Tool, New QC 7 Tool, and statistical methods to rationalization, improvement in the shop floor. This paper empirically investigates the effects of Six Sigma on Quality Circles by analyzing the difference of problem solving technique's use. The number of teams employed in this study is 342, which participate in National Quality Circles Contest from 1997 to 2002 in Korea
A Classification and Selection of Reliability Growth Models
Jung, Won ; Kim, Jun-Hong ; Yoo, Wang-Jin ;
Journal of the Korean Society for Quality Management, volume 31, issue 1, 2003, Pages 11~20
In the development of a complex systems, the early prototypes generally have reliability problems, and, consequently these systems are subjected to a reliability growth program to find problems and take corrective action. A variety of models have been proposed to account for the reliability growth phenomena. Clear guidelines need to be established to assist the reliability engineers for model selection. In this paper, some of more well-known growth models are surveyed and classified. These models are classified based upon distinguishing model features. A procedure for model selection is introduced which is based on this classification.
Strategy of Market Penetration in Japanese Internet Market: Comparing Online Game Loyalty between Korea and Japan with MSEM
Journal of the Korean Society for Quality Management, volume 31, issue 1, 2003, Pages 21~41
The purpose of this research is to identify if psychological temptation, site quality and sense of community influence user's flow and addiction and if causalities among flow, addiction, customer satisfaction and customer loyalty are different between Korean and Japanese online games. To perform our research, we use MCSF(Multi-group Confirmatory Factor Analysis) and MSEM(Multi-group Structural Equation Model). The empirical results of SEM(Structural Equation Model) including high-order factor analysis indicate that all of paths in our model are the same for both countries. Therefore, site quality and sense of community have impacts on the flow, while on the other hand, psychological temptation has impacts on the addiction. Customer satisfaction and loyalty are positively related not with the addiction but with the flow. In addition, customer loyalty is significantly influenced by the flow and the customer satisfaction. In Conclusion, the empirical results of MSEM(Multi-group Structural Equation Model) indicate sense of community to flow, flow to loyalty and customer satisfaction to loyalty are different between Korea and Japan. This indicates that companies to penetrate into Japa online game industry should have a concern with Japanese Social and Cultural features and to develop strategies which correspond with Japanese culture.
A Comparative Study on Service Quality in the Korean Insurance Industry using SERVPERF
Journal of the Korean Society for Quality Management, volume 31, issue 1, 2003, Pages 42~61
The objective of this study is to analyze the impact of service quality on the customer satisfaction, the re-purchase intention and the word of mouth in the Korean insurance industry. In this study, the methodology for measuring the degree of service quality which has been adopted in the service quality research area was used. Data for this study were gathered from 1332 consumer life insurance and 689 consumer non-life insurance companies using internet survey method. The result of this study is summarized as follows: the determinants of service quality in the Korean life insurance industry are empathy, responsiveness and reliability, and the determinants of service quality in the Korean non-life insurance industry are empathy, and responsiveness, and the re-purchase intention and the word of mouth are affected by the customer satisfaction. As a result of the study, strategic implications will be suggested.
A Study on the case of PL prevention strategies and prevention systems in the domestic S-company
Journal of the Korean Society for Quality Management, volume 31, issue 1, 2003, Pages 62~75
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. This paper gives suggestions as to PL prevention of manufacturing companies through the case research of PL prevention strategies and the prevention systems of the domestic S-company.
A Study on the Comparison of CMM and ISO9001 for Software Process Improvement
Journal of the Korean Society for Quality Management, volume 31, issue 1, 2003, Pages 76~89
Recently, CMM have been recognized as a critical factor to validate the competitiveness of software organizations, even if the organizations have already achieved the ISO9001 certification. Furthermore, the new version of ISO9001:2000 is being required instead of ISO9001:1994. Both CMM and ISO9001 have a common point that they pursuit quality improvement for the organizations processes and products. Therefore, it is important to understand the similarities of specific requirements between the two models in software organizations which attempt to employ both of the models. From this background, this paper compares CMM and ISO9001 by considering the versions in 1994 and 2000 of ISO9001. The results of this research are likely to help software organizations ma]fe a decision for a strategy to adopt CMM and ISO9001.
A Case Study for Implementing Quality/Environmental Integrated Management System in a Small-to-Medium-Sized Company
Journal of the Korean Society for Quality Management, volume 31, issue 1, 2003, Pages 90~108
This study deals with a case analysis on the implementation of ISO 9000/14000 Integrated Management System. The intention is to provide some general guidelines, in particular, to small-to-medium-sized companies that are planning to introduce the Integrated Management System. First we briefly review each of the ISO 9000 series, ISO 14000 series and Integrated Management System. We then investigate the case of a small-sized company that have built and is successfully operating the Integrated Management System. We start with introducing the company, and then examine the background and the procedure for implementing the Integrated Management System. We investigate effects of the Integrated Management System, which are the main focus of this paper. This study is meaningful in that, to our best knowledge, it is the first field report appearing in the literature in regard to the actual implementation of ISO 9000/14000 Integrated Management System in Korea.
A Robust Process Capability Index based on EDF Expected Loss
Journal of the Korean Society for Quality Management, volume 31, issue 1, 2003, Pages 109~122
This paper presents a robust process capability index(PCI) based on the expected loss derived from the empirical distribution function(EDF). We propose the EDF expected loss in order to develop a PCI that does not depends on the underlying process distribution. The EDF expected loss depends only on the sample data, so the PCI based on it is robust and it does nor require complex calculations. The inverted normal loss function(INLF) is employed in order to overcome the drawback of the quadratic loss which may Increase unboundedly outside the specification limits. A comprehensive simulation study was performed under various process distributions, in order to compare the accuracy and the precision of the proposed PCI with those of the PCI based on the expected loss derived from the normal distribution. The proposed PCI turned out to be more accurate than the normal PCI in most cases, especially when the process distribution has high kurtosis or skewness. It is expected that the proposed PCI can be utilized In real processes where the true distribution family may not be known.
Reducing the Rate of Defective to Improve a Welding Condition -Based on Six Sigma Process-
Journal of the Korean Society for Quality Management, volume 31, issue 1, 2003, Pages 123~131
This paper considers a six sigma project for reducing the defects rate of the welding process in manufacturing firms. The project follows a disciplined process of five macro phases. define, measure, analyze, improve and control(DMAIC). The need of customers is used to identify critical to quality(CTQ) of project. And a process map is used to identify process input factors of CTQ. Four key process input factors are selected by using an input factor evaluation of teams; an interval of welding, an abrasion, an electric current and a moving freely. DOE is utilized for finding the optimal process conditions of the three key process input factors. Another one key input factor improved to welding machine. The six sigma level of defects rate becomes a 2.01 from a 1.61 at the beginning of the project.
A Study of Demerit-CUSUM Control Chart and Interpretation Method
Journal of the Korean Society for Quality Management, volume 31, issue 1, 2003, Pages 132~141
As the technology has improved and demands of customers have varied, a lot of products are getting diverse and intricate. Consequently, the enterprise that produce products have to simultaneously consider the various variables for the very products. There are some scheme, such as Multivariate control chart and Demerit control chart, designed to simultaneously monitor the variables in the process. In this paper, we present an effective method for process control using the Demerit-CUSUM control chart in the process where nonconforming units or nonconformities are occured by various types. In addition, we show interpretation method for abnormal signal in order to quickly detect the assignable causes as Demerit-CUSUM control chart signals abnormality. we compare performance of Demerit control chart and Demerit-CUSUM control chart using example again used in the existing studies, and present result of performance accoriding to changing sample size and parameter.
Burn-in When Repair Costs Vary With Time
Na, Myung-Hwan ; Lee, Sangyeol ;
Journal of the Korean Society for Quality Management, volume 31, issue 1, 2003, Pages 142~147
Burn-in is a widely used method to eliminate the initial failures. Preventive maintenance policy such as block replacement with minimal repair at failure is often used in field operation. In this, paper burn-in and maintenance policy are taken into consideration at the same time. The cost of a minimal repair is assumed to be a non-decreasing function of its age. The problems of determining optimal burn-in times and optimal maintenance policy are considered.