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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society for Quality Management
Journal Basic Information
Journal DOI :
The Korean Society for Quality Management
Editor in Chief :
Volume & Issues
Volume 32, Issue 4 - Dec 2004
Volume 32, Issue 3 - Sep 2004
Volume 32, Issue 2 - Jun 2004
Volume 32, Issue 1 - Mar 2004
Selecting the target year
Comparison of SE-CMM and KEPIC QAP-1 for Assessing Capability Level of Nuclear QA
Lee Sun Kee ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 1~14
Nuclear project company establishes and maintains its QA system in the conformance with applicable Codes & Standards and contract provisions. Certifying agency(e.g., Korea Electric Association) or project owner appraises the effectiveness of the company QA system by surveying or auditing it. However, although the company fulfills the requirements of this survey/audit, the capability level of its nuclear QA system is not appraised numerically and developed in that KEPIC QAP-1, used by the company as a nuclear QA guidebook, does not describe an approach for managing the capability level of the QA system. This study evaluates the characteristics of QAP-1 from the viewpoint of SE-CMM(Capability Maturity Model for Systems Engineering) in order to suggest a possible solution.
An Analyzing the Property Factors of Internet Digital Products Focusing on Customer acceptability of On-line Community Products.
Chae Young-Il ; Lee Hyun-Soo ; Suh Yung-Ho ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 15~29
This paper is interested in analyzing the CSFs of 3 different kinds of on-line digital products. They are on-line digital products of (1) transaction, (2) relations, and (3) interests. This study first tried to define the on-line digital products based in the above three categories and then to find the factors that might effect the customer acceptability in each product groups. Independent variables used in this study are characters of products, characters of users, and system environments. This paper that on-line survey has been conducted for the study's specialty and the collected resource was analyzed by using the SPSS 10.0K statistics package. Using multiple regression, this study finds that major factors effecting the user acceptability of each group are different from one another. For example, system environment variables such as speediness, system performance effects the customer acceptability of digital products of Interest(game, avartar, etc). Much more then that of products of relations(information service, etc). Therefore empirical findings are suggested in the conclusion.
A Study on the Logistics Service Quality, Customer Satisfaction, Relationship Quality and Repurchase Intention in Internet Shopping Mall
An Un-Seok ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 30~47
The tremendous growth of the Internet, particularly world wide web, has resulted in significant changes in commerce environments. Internet has brought significant changes in the economics of marketing channels and has led to a redefinition of industry value chain. E-commerce has become so important that countries and firms unprepared for this new trend would lose competitive advantages in the coming century of digital economy. The purpose of this study is to identify logistic!; service quality elements about internet shopping mall customers and examine the relationship among e-commerce logistics service quality, customer satisfaction, relationship quality and repurchase intentions in the area of internet shopping mall. To do so, prior studies on logistics service quality, customer satisfaction, relationship qualify and repurchase intentions were broadly reviewed and the relationship among those four concepts was empirically tested.
An Introductory Study on Korean Quality Management System
Park Chae-Heung ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 48~63
On the process of Korean last half century's condensed economic growth, the contribution of quality management was very important. But if we continued the way in which U.S.A. developed and Japan revised, we would not be able to catch up the developed country. This paper says allegedly that we'd better introduce Korean Quality Management system, which is based on Korean traditional thought.
A Study on the Effects of ISO 9001/2000 Certification Factors on Performance of Service Quality and Customer Satisfaction
Kim Jae Hwan ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 64~77
This paper first was focused on investigating the relative effect of each ISO 9001: 2000 certification factors on service quality and customer satisfaction in service industry. The empirical tests was conducted in service industry. The results are as follows. First, it shows that ISO 9001:2000 certification factors except requirements for quality management have a positive effect on service quality significantly. Second, it also indicates that service quality precedes customer satisfaction like other researches reported. Finally, different effects of ISO 9001:2000 certification factors on service quality are observed in the various industries.
An Empirical Study on the ISO 9000 Follow-up Management Practices of Korean Small Enterprises
Lee Jae-Kwan ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 78~91
The ISO 9000 Follow-up Management Practices (FMP) as an integrated area including training, QM systems, management commitment, customer focus, communication and related issues are examined. A sample of 191 small and medium-sized firms data from mail survey is analyzed by the SPSSWIN. A model of FMP including three factors (Systems, Training, and Customer Focus) is introduced. In this paper, a focus is laid on the comparison between ISO 9000:1994 vs. ISO 9000:2000 or 05 9000 certificates and between groups classified by the time length after certification, and on regression relationships between FMP level and business performance. The result shows that the difference of FMP level is significant between two versions and between groups. Quality level and system satisfaction are influenced significantly by the three factors.
A Study on the Efficiency of Total Quality Management Activities in Service Sector
Yoo Hanjoo ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 92~102
In this era of intense competition, TQM has become the key program in organizations as they strive for a competitive advantage. It has been applied to manufacturing and service sector since BNQA model was established in 1987. TQM literature for manufacturing sector abounds with empirical studies on the critical dimensions of TQM, but there is few empirical studies on the TQM evaluation for service sector. In this paper, two methodologies are applied to evaluate the TQM activities of service companies comparatively One of them is the traditional scoring system(TSS) by analytic hierarchy process(AHP). The other is the efficiency measuring system(EMS) by data envelopment analysis(DEA). DEA outperformed other alternative methods to measure the efficiency and it can be applied to evaluate the TQM activities. The objective of this paper is to evaluate TQM activities of domestic service companies by applying TAE(Total quality management Activities Evaluation) model to them. The result of this study is that TSS scores are not significantly correlated with EMS scores. It means that service organizations must not only make efforts to get the higher scores in terms of TSS but also take necessary steps to enhance their efficiencies.
A Study on TQM in College Education -The Models of TQM-
Kim Heetak ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 103~112
Total Quality Management(TQM) in Higher Education Institution(HEI) has been popular since early 1980s. Implementation of TQM, however, has not been easy. The difficulties of the implementation is partially due to the lack of effective TQM models in HEIs. This paper proposed a new model based on PDCA cycle. The paper consists of four chapters. First chapter Introduces the status of TQM in HEIs and implementation problems. Second chapter delineates the models used in HEIs. In third chapter, a new model is suggested. Last chapter is the conclusions.
An Empirical Study on the Integrated Customer Satisfaction Evaluation Model for New Product Development - Focused on Automobile Industry -
Kim Dong Nam ; Cho Jai Rip ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 113~124
Customer satisfaction is becoming an increasingly salient topic in many firms and in academic research. One main rationale behind this interest is that customer satisfaction is believed to be associated with fruitful customer re-visit from the firm's point of view. Some country already had index models which can measure the degree of customer satisfaction. But, such models are ordinary models which used generally the scope of nation-wide /industry. Therefore, we needs some modifications to measure customer satisfaction for specific product & service and to provide the valuable feedback to specific firms. In this Perspectives, this study will evaluate the customer satisfaction index about automobile company and analyze it's result for valuable feedback. This study will present a model for an integrated customer satisfaction evaluation system which used structural equation modeling. Through this study, we anticipate that it will offer the measuring method about customer satisfaction and some guideline for product design process.
Optimum redundancy design for maximum system reliability: A genetic algorithm approach
Kim Jae Yun ; Shin Kyoung Seok ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 125~139
Generally, parallel redundancy is used to improve reliability in many systems. However, redundancy increases system cost, weight, volume, power, etc. Due to limited availability of these resources, the system designer has to maximize reliability subject to various constraints or minimize resources while satisfying the minimum requirement of system reliability. This paper presents GAs (Genetic Algorithms) to solve redundancy allocation in series-parallel systems. To apply the GAs to this problem, we propose a genetic representation, the method for initial population construction, evaluation and genetic operators. Especially, to improve the performance of GAs, we develop heuristic operators (heuristic crossover, heuristic mutation) using the reliability-resource information of the chromosome. Experiments are carried out to evaluate the performance of the proposed algorithm. The performance comparison between the proposed algorithm and a pervious method shows that our approach is more efficient.
The Six Sigma Management Model for Small and Medium-sized Companies Using the Management by Process
Jung Dong-ho ; Hong Sung-jo ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 140~155
Six Sigma Management has been introduced as a management strategy by leading companies and some small and medium-sized companies in Korea. But it is not easy for small and medium-sized companies to implement this new management system because of their business environment such as poor manpower or lack of time, etc. This paper proposes an effective implementation model of the Six Sigma Management for small and medium-sized companies using the management by process. First, We review the concept of Six Sigma Management and consider the problems of introducing the system for small and medium-sized companies. And then, Six Sigma Management model for small and medium-sized companies named SIX SIGMA-s is presented. Finally, we present a case study of applying SIX SIGMA-s for a medium- sized company.
Statistical Efficiency of VSSI
Control Charts for the Process with Two Assignable Causes
Lee Ho-Jung ; Lim Tae-Jin ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 156~168
This research investigates the statistical efficiency of variable sampling size & sampling interval(VSSI)
charts under two assignable causes. Algorithms for calculating the average run length(ARL) and average time to signal(ATS) of the VSSI
chart are proposed by employing Markov chain method. States of the process are defined according to the process characteristics after the occurrence of an assignable cause. Transition probabilities are carefully derived from the state definition. Statistical properties of the proposed chart are also investigated. A simple procedure for designing the proposed chart is presented based on the properties. Extensive sensitivity analyses show that the VSSI
chart is superior to the VSS or VSI
chart as well as to the Shewhart
chart in statistical sense, even tinder two assignable causes.
An Adaptive Synthetic Control Chart for Detecting Shifts in the Process Mean
Lim Taejin ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 169~183
The synthetic control chart (SCC) proposed by Wu and Spedding (2000) is to detect shifts in the process mean. The performance was re-evaluated by Davis and Woodall (2002), and the steady-state average run length (ARL) performance was shown to be inferior to cumulative sum (CUSUM) or exponentially weighted moving average (EWMA) chart This paper proposes a simple adaptive scheme to improve the performance of the synthetic control chart. That is, once a non-conforming (NC) sample occurs, we investigate the next L-consecutive samples with larger sample sizes and shorter sampling intervals. We employ a Markov chain model to derive the ARL and the average time to s19na1 (ATS). We also propose a statistical design procedure for determining decision variables. Comprehensive comparative study shows that the proposed control chart is uniformly superior to the original SCC or double sampling (DS) Χ chart and comparable to the EWMA chart in ATS performance.
Big Y development for line Yield Improvement in a Factor
Moon Gi-Ju ; Park Woo-Jong ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 184~195
Current companies 집중 on how to operate and select projects to achieve the best result. 6sigma projects are chosen in the best suitable concept, which are solved by the 6Sigma experts according to the priority. And every project has to be launched not the view of individual management factors but the total factors, Big Y. Therefore, a process needs to be treated to connect the vital few factors in various processes to improve the yield, which is the main performance criteria in a manufacturing industry This report is to make the total optimization through the Vital-Few mapping between quality characteristics and process factors in a manufacturing line. Accordingly, it means to secure lower variance by making the CTP(Critical To Process) optimization and finally to improve the yield.
The Immersing Improvement of TDR for the Greatest Results in Business
Lee Myung Ho ; Kim Tai Kyoo ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 196~207
TDR(Tear Down & Redesign)means that renounce the past resolutely, from a white paper condition, let's change directions. That is, let's redesign from the basic of the establishment of the construction process. Through the switchover the conception, innovate totally the whole existing processes. TDR is the best core innovation activity. The ultimate aim of the TDR activity induces the employees to do more productive business and obtain excellent results in the future by solving the problems, which are the nonproductive business in the business process on the objective view, the business that customers don't recognize the value, the same old practice of business, and the unsettled business from the restriction of resources. By organizing the related to workers of those business, they can solve the problems for 3-4months by full time working This paper inquires what are the obstruction factors on the process of executing TDR activity. Through the search of the reformation plan for the improvement of immersion degree, it presents some methods to be successful business.
Nonparametric Estimation for Ramp Stress Tests with Stress Bound under Intermittent Inspection
Lee Nak-Young ; Ahn Ung-Hwan ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 208~219
This paper considers a nonparametric estimation of lifetime distribution for ramp stress tests with stress bound under intermittent inspection. The test items are inspected only at specified time points an⊂1 so the collected observations are grouped data. Under the cumulative exposure model, two nonparametric estimation methods of estimating the lifetime distribution at use condition stress are proposed for the situation which the time transformation function relating stress to lifetime is a type of the inverse power law. Each of items is initially put on test under ramp stress and then survivors are put on test under constant stress, where all failures in the Inspection interval are assumed to occur at the midi)oint or the endpoint of that interval. Two proposed estimators of quantile from grouped data consisting of the number of items failed in each inspection interval are numerically compared with the maximum likelihood estimator(MLE) based on Weibull distribution.
Graphical Methods for Evaluating the Degree of the Orthogonality of Nearly Orthogonal Arrays
Jang Dae-Heung ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 220~228
The orthogonality is an important property in the experimental designs. When we use nearly orthogonal arrays, we need evaluate the degree of the orthogonality of given experimental designs. Graphical methods for evaluating the degree of the orthogonality of nearly orthogonal arrays are suggested.
Better Confidence Limits for Process Capability Index
under the assumption of Normal Process
Cho Joong-Jae ; Park Byoung-Sun ; Park Hyo-il ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 229~241
Process capability index is used to determine whether a production process is capable of producing items within a specified tolerance. The index
is the third generation process capability index. This index is more powerful than two useful indices
. Whether a process distribution is clearly normal or nonnormal, there may be some questions as to which any process index is valid or should even be calculated. As far as we know, yet there is no result for statistical inference with process capability index
. However, asymptotic method and bootstrap could be studied for good statistical inference. In this paper, we propose various bootstrap confidence limits for our process capability Index
. First, we derive bootstrap asymptotic distribution of plug-in estimator
of our capability index
. And then we construct various bootstrap confidence limits of our capability index
for more useful process capability analysis.
Nonparametric Inference for Accelerated Life Testing
Kim Tai Kyoo ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 242~251
Several statistical methods are introduced 1=o analyze the accelerated failure time data. Most frequently used method is the log-linear approach with parametric assumption. Since the accelerated failure time experiments are exposed to many environmental restrictions, parametric log-linear relationship might not be working properly to analyze the resulting data. The models proposed by Buckley and James(1979) and Stute(1993) could be useful in the situation where parametric log-linear method could not be applicable. Those methods are introduced in accelerated experimental situation under the thermal acceleration and discussed through an illustrated example.
Chart with Multi-state VSS and 2-state VSI Scheme
Lee, Jae-Heon ; Park, Chang-Soon ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 252~264
Variable sampling Interval (VSI) control charts vary the sampling interval according to value of the control statistic while the sample size is fixed. It is known that control charts with 2-state VSI scheme, which uses only two sampling intervals, give good statistical properties. Variable sample size (VSS) control charts vary the sample size according to value of the control statistic while the sampling interval is fixed. In the VSS scheme no optimal results are known for the number of sample sizes. It is also known that the variable sampling rate (VSR)
control chart with 2-state VSS and 2-state VSI scheme leads to large improvements In performance over the fixed sampling rate (FSR)
chart, but the optimal number of states for sample size Is not known. In this paper, the VSR Χ charts with multi-state VSS and 2-state VSI scheme are designed and compared to 2-state VSS and 2-state VSI scheme. The multi-state VSS scheme is considered to, achieve an additional improvement by switching from the 2-state VSS scheme. On the other hand, the multi-state VSI scheme is not considered because the 2-state scheme is known to be optimal. The 3-state VSS scheme improves substantially the sensitivity of the
chart especially for small and moderate mean shifts.
Clustering Method Using Characteristic Points with Marketing Data
Moon Soog-Kyung ; Kim Woo-Sung ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 265~273
We got the growth distance curve by spline smoothing method with observed marketing data and the growth velocity curve by the derivation of the growth distance curve. Using this growth velocity curve, we defined the several characteristic points which describe the variation of marketing data. In this paper, to specify several patterns of marketing data, we suggested characteristic function by using these characteristic points. In addition, we applied characteristic function to the seventeen brands of electric home products data.
An Empirical Study on the Operation of Quality Management
Park Roh Gook ; Lee Song Ho ;
Journal of the Korean Society for Quality Management, volume 32, issue 4, 2004, Pages 274~285
This study, in particular, studied the consortium-participating companies on their plans of Quality Management as to how they carry them out in order to advance to the first-class business enterprises. These companies' present status and activities under implementation identified and interpreted by this study, therefore, are insufficient to be generalized into knowledge applicable to most of the companies in Gangwon-do. For more precise and detailed results, it is suggested to make further studies that cover not only those consortium companies but also non-consortium manufacturing companies if Gangwon-do.