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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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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 40, Issue 4 - Dec 2012
Volume 40, Issue 3 - Sep 2012
Volume 40, Issue 2 - Jun 2012
Volume 40, Issue 1 - Mar 2012
Selecting the target year
A Study on Development of Quality Satisfaction Index Model for Military Goods
Kwon, Se-Min ; Choi, Seok-Goo ; Cho, Kyoung-Ho ; Baek, Seung-Ho ; Kim, Yong-Seop ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 234~244
DOI : 10.7469/JKSQM.2012.40.3.234
Purpose: In the private sector, many Customer Satisfaction Index Models have already been developed and are being applied in a variety of industries. In spite of continuously increasing of quality for military goods, measuring tools of Quality Satisfaction have not been developed yet. Method: In 2004, Defense Quality Assurance Agency and Seoul National University jointly developed MCSI(Military Customer Satisfaction Index) as a benchmark NCSI(National Customer Satisfaction Index), but it is limited to aply to military goods. We focused on product quality and developed MQSI(Military Quality Satisfaction Index) Model. Result: We propose a new Satisfaction Index Model(MQSI, Military Quality Satisfaction Index) that can be applied to military goods. Conclusion: In this study, configuration and variables of MQSI Model are described. Also the result of preliminary survey is briefly explained.
Sampling Procedures Enhancement in Government Defense Quality Assurance Procedures: Case Studies in Combat Force Support Material & Ammunition Areas
Ahn, Nam-Su ; Jeong, Ji-Sun ; Jeong, Woon-Kwon ; Hwang, Woo-Yull ; Park, Sang-Won ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 245~258
DOI : 10.7469/JKSQM.2012.40.3.245
Purpose: Recently, many quality issues are aroused in military forces, such as failures in K-series weapons, combat boots defects and 40mm ammunition explosion accident. To address these problems, the one and only government defense quality assurance agency, DTaQ(Defense Agency for Technology & Quality) tried to improve many quality assurance procedures and introduced new systems such as MRA(Manufacturing Readiness Assessment), TRA(Technology Readiness Assessment), and etc. However, as the amount of war supplies increasing every year, the resource(budget and manpower) for quality assurance is limited. Therefore, DTaQ had difficulty to handle the issue efficiently and effectively, and we propose the method to address this problem. Methods: The most popular quality assurance technique is a sampling method, in this research, we first review the many sampling techniques and compare the strength and weakness of each method. After then, we selected the most appropriate sampling techniques and applied the procedures in combat force support material and ammunition areas. Results: We can reduce the number of samples dramatically, thus the required amount of labor time and money can be saved. Also, the new sampling technique enforces the supplier to produce the product which meets the target value(desirable value). Conclusion: We can reduce the number of samples dramatically, thus the required amount of labor time and money can be saved. Also, the new sampling technique enforces the supplier to produce the product which meets the target value(desirable value). Lastly, since the new sampling method requires many numerical calculations, we developed a simple android OS smart-phone application which can be used easily in field.
A Case Study on the Reliability Assessment of Stockpile Ammunition
Yoon, Keun-Sig ; Lee, Jong-Chan ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 259~269
DOI : 10.7469/JKSQM.2012.40.3.259
Purpose: The purpose of this study was to find out that the statistical method of stockpile reliability of ammunition by items can be applied to the reliability assessment of stockpile ammunition. Methods: We reviewed the statistical method of stockpile reliability of ammunition by items and verified the possibility of its application by case study. Results: We found that the statistical method of stockpile reliability of ammunition by items is very useful and effective to present the reliability of ammunition based on each item and to predict the change of the reliability in the future. The reliability of proximity fuse was about 94.5% and was influenced by manufacture's year and the difference between lot and lot more than storage period. Conclusion: The statistical method of stockpile reliability of ammunition by items can be applied to the reliability assessment of various stockpile ammunitions such as ammunition for mortar and canon.
A Study of Storage Life Estimation for Delay System in the Fuse of 81mm Illuminating Projectile
Chang, Il-Ho ; Kim, Ji-Hoon ; Lee, Woo-Chul ; Back, Seung-Jun ; Son, Young-Kap ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 270~277
DOI : 10.7469/JKSQM.2012.40.3.270
Purpose: In this paper, storage lifetime of delay system in the fuse of 81MM illuminating projectile is estimated. Methods: Accelerated degradation testings of tungsten delay system using both temperature and humidity stresses were performed, and then delay time increase of the systems were analyzed as degradation data based on distribution-based degradation processes. Results: The estimated storage lifetime of detonator is between 11.8 years and 17.6 years with each stress-life relationship. Conclusion: Comparing with field data, storage lifetime of 90% reliability is about 12 years.
Reliability Evaluation of Weapon System using Field Data: Focusing on Case Study of K-series Weapon System
Chung, Il-Han ; Lee, Hag-Yong ; Park, Young-Il ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 278~285
DOI : 10.7469/JKSQM.2012.40.3.278
Purpose: Weapon systems have the long life cycle unlike the consumer product. Thus, the reliability of weapon system is improved during the life cycle through the steady technical change. In this paper, we deal with the method of evaluating the reliability of weapon system with the field failure data. Methods: Especially, we present how to gather the field failure data and evaluate the reliability through the case of K-series weapon system. To evaluate reliability, the reliability growth model is used and the result is discussed. Results: It is steadily improved the reliability of K-series weapon system deployed from 2000 to 2004. The frequency of the failures that affect the mission is largely reduced and MTBMF(mean time between mission failure) is also improved. Conclusion: We can guess the trend of the reliability of weapon system with the field data through this study. Furthermore, it can be used to improve the reliability and make maintenance policy.
A Study on ESS Process Modeling and Application for Improving Reliability of Electronic Equipments
Choi, Jong-Soo ; Lee, Chang-Woo ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 286~294
DOI : 10.7469/JKSQM.2012.40.3.286
Purpose: In this study, we propose the ESS process model which, in order to improve reliability of electronic equipment, can be referenced in both development and production phases. Methods: ESS guidelines such as MIL handbooks or private sector ESS guidelines are used for devising the proposed ESS model. Especially, proposed model is customized by using those references in order to be optimized in the domestic development and production phases. Results: ESS-related-requirements which is specified in the Technical Data Package(TDP) for the area of guided missile systems are analyzed. Current status of the requirement and screening strength are analyzed for those systems to show what kind of weak points should be improved. Conclusion: A ESS guideline which is applicable to the domestic weapon acquisition environment is proposed. As such, the necessity and detail guidelines of the proposed model are explained.
A Study on the Development of the Defense Standardization System
Jeong, Ji-Sun ; Kwon, Taek-Man ; Hwang, Woo-Yull ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 295~305
DOI : 10.7469/JKSQM.2012.40.3.295
Purpose: This study identified the standardization activities from the early stage of acquisition to disposal during the materiel life cycle and proposed the improvement of standardization process. Methods: Through improvement of duplicated deliberation for the revision of military specification, unification of technical change proposal reception organization, and resolution between the conflicting parts of laws and regulations, simplifying the standardization procedure and strengthening linkages between the civilian standards were gained. Results: We have redefined the concept of the standards and standardization in the field of defense and proposed the standards-driven documentary standards as a measurement standards and reference standards to expand the activities. Conclusion: Through a standardization survey, we came to conclusion that we need to change the concept of standardization in the field of national defense from making the specification to using the means of efficient management of military resources.
Reestablishment of RPN Evaluation Method in FMEA Procedure for K21
Lee, Chang-Hee ; Yang, Kyung-Woo ; Kim, Sang-Bu ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 306~315
DOI : 10.7469/JKSQM.2012.40.6.306
Purpose: To ensure good quality munitions, we require quantitative risk management and optimal risk management of system characteristics. Methods: Failure mode and effects analysis (FMEA) is a widely used technique to assess or to improve reliability of products at early stage of design and development. Traditionally, the prioritization of failures for corrective actions is performed by developing a risk priority number (RPN). Results: This paper reestablishes an effective methodology for prioritization of failure modes in FMEA procedure. Revised evaluation criteria of RPN are devised. Conclusion: To verify the proposed methodology, it is applied to RPN evaluation for K21 infantry combat vehicle.
A Study on Design for Six Sigma Methodology for Aircraft Industry
Sung, Su-Gyeong ; Yoon, Hee-Kweon ; Kwag, Sang-Hyug ; Byun, Jai-Hyun ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 316~326
DOI : 10.7469/JKSQM.2012.40.3.316
Purpose: In this paper, a Design for Six Sigma(DFSS) methodology based on DMADV(Define-Measure-Analyze-Design-Verify) roadmap is presented. Methods: DFSS tools are given for each DMADV phase which is suitable for the aircraft development process. A cost reduction case study of a navigation simulation is demonstrated. Results: DFSS roadmap are presented with implementation tools for each phase. Conclusion: We propose a DFSS methodology which can benefit the design and development personnel to implement DFSS not only in aircraft industry but also in other order-based industries in general.
The Design of Robust Control Chart for A Contaminated Process
Kim, Yong-Jun ; Kim, Dong-Hyuk ; Chung, Young-Bae ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 327~336
DOI : 10.7469/JKSQM.2012.40.3.327
Purpose: In this study, we research the hurdle rate method to suggest the robust control chart for a contaminated process less vulnerable to fault values than existing control charts. Methods: We produce the results of p, ARL values to compare the performance of two control charts,
that has been used typically and TM-TS that is suggested by this paper. We implement the simulation focusing on three cases, change of deviation, mean and both of them. Results: We draw a conclusion that the TM-TS control chart has better efficiency than
control chart over the three cases. Conclusion: We insist that applying TM-TS control chart for a polluted process is more effective than
Control Charts for Process Control in Local Structure and Abnormal Distribution Data
Kim, Jeong-Hun ; Kim, Seoung-Bum ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 337~346
DOI : 10.7469/JKSQM.2012.40.3.337
Purpose: A Control chart is one of the important statistical process control tools that can improve processes by reducing variability and defects. Methods: In the present study, we propose the local
multivariate control chart that can efficiently detect abnormal observations by considering the local pattern of the in-control observations. Results: A simulation study has been conducted to examine the property of the proposed control chart and compare it with existing multivariate control charts. Conclusion: The results demonstrate the usefulness and effectiveness of the proposed control chart.
Analysis of mixture experimental data with process variables
Lim, Yong-B. ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 347~358
DOI : 10.7469/JKSQM.2012.40.3.347
Purpose: Given the mixture components - process variables experimental data, we propose the strategy to find the proper combined model. Methods: Process variables are factors in an experiment that are not mixture components but could affect the blending properties of the mixture ingredients. For example, the effectiveness of an etching solution which is measured as an etch rate is not only a function of the proportions of the three acids that are combined to form the mixture, but also depends on the temperature of the solution and the agitation rate. Efficient designs for the mixture components - process variables experiments depend on the mixture components - process variables model which is called a combined model. We often use the product model between the canonical polynomial model for the mixture and process variables model as a combined model. Results: First we choose the reasonable starting models among the class of admissible product models and practical combined models suggested by Lim(2011) based on the model selection criteria and then, search for candidate models which are subset models of the starting model by the sequential variables selection method or all possible regressions procedure. Conclusion: Good candidate models are screened by the evaluation of model selection criteria and checking the residual plots for the validity of the model assumption. The strategy to find the proper combined model is illustrated with examples in this paper.
The Effects of Dissatisfaction on Consumer Behavioral Response in Smartphone Application Service
Kim, Yong-Hee ; Choi, Jeong-Il ; Jin, Yeong-Ho ; Lee, Dong-Won ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 359~371
DOI : 10.7469/JKSQM.2012.40.3.359
Purpose: Due to the explosive growth and widespread use of smartphones, new business opportunities are emerging. Despite the importance of creating customer value in using smartphone applications, past studies on have mainly focused on functions or factors and specifications that influence users to use the device. Methods: This study is intended to identify how customer dissatisfaction from the use of smartphone application services affects customer sentiment and behavior. The research model is tested via a survey of 290 smartphone application users. Results: The result of this empirical study indicates that customer dissatisfaction significantly affects the user's disappointment and regret in using a service, which are subordinate values of customer emotion. The user's anger is positively associated with 'Negative word of mouth' and 'Complaint', which are subordinate values of customer behavior, but not with an intention to switch to another service. 'Regret' and 'Disappointment' are positively associated with 'Negative word of mouth' and 'Switching intention', but not with 'Making direct complaints'. Finally, customer's negative sentiments are a significant intermediary in the relationship between customer dissatisfaction and behavioral response. Conclusion: Finally, the study offers a more systematic understanding on the phasal response process of customer dissatisfaction in relation to the provision of smartphone application services.
Development of an Evaluation Model for R & D Technology Portfolio Based on Business Model Components
Kim, Young-Tae ; Im, Kwang-Hyuk ; Lee, Sang-Chul ; Park, Sang-Chan ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 372~380
DOI : 10.7469/JKSQM.2012.40.3.372
Purpose: The purpose of this research is to develop the methods for evaluating the business value of a company's technical portfolios. In this study, technical portfolios of 10 major manufacturers and e-Biz industries are examined first from a business model perspective. Subsequently, we suggest future direction of R&D for the pharmaceutical industry by deducing the leading industries sharing similar traits with the pharmaceutical industry. Methods: In order to evaluate and analyze the patents of the major leading industries based on the constituents of a business model, the target patents were selected through the following procedure. Results: First, In this study, using the data obtained from the patent analysis, the differences in the technology portfolios of specific business entities based on the constituents of their business models. Second, deduced business rules of particular business entities through classification analysis and role-model of pharmaceutical industry Conclusion: If enterprise discovers technological change and characters of other enterprise or technology, enterprise could judge a direction of technology which will be developed in the near term and a plan which utilized existing technology to increase enterprise's profits.
A multi-item measurement scale of healthcare service quality: an evaluation indicators of healthcare certification
Choe, Byung-Don ; Lee, Don-Hee ; Yoon, Sung-Dae ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 381~393
DOI : 10.7469/JKSQM.2012.40.3.381
Purpose: Considering various measurements for healthcare service quality, the purpose of this study is to examine measurement items for healthcare service quality (HCSQ) based on previous study and service quality evaluation institutions in the international community. Methods: The proposed research model was tested using measurement analysis, based on data collected from 387 respondents in the selected hospital with more than 500 beds in South Korea. Results: The results of the study shed insights about the relative importance of quality items as degree of improvements of care services tangible, safety, efficiency, and empathy. Also, the study provides new measurement model for healthcare service quality. Conclusion: Healthcare organization thrives to find the key factors for improving quality of care and service that meet customers' needs and expectations.
A Comprehensive Performance Indicators by SIPOC Model
Chung, Kyu-Suk ; Yun, Sang-Un ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 394~405
DOI : 10.7469/JKSQM.2012.40.3.394
Purpose: In this study, we suggest the systematic and comprehensive model to develop PI(Performance Indicators) of the organization or the process. Methods: The model is developed theoretically by using SIPOC(Supplier, Input, Process, Output, Customer) approach which is a tool to analyze the process and is compared with existing models to develop PI or KPI(key performance indicators); financial indicators, BSC, IPOO(input, process, output, outcome), traditional QCD (quality, cost, delivery), and IOS(input, output system). Results: The model provides more systematic method to develop PI and more comprehensive set of PI pools for all kinds of hierarchical levels of process than any other models to develop PI or KPI. Conclusion: This model will provide useful tools for the managers and the organizations who wish to develop PI.
A Study for the Service Quality Audit System Development based on the Analysis of Airline Cabin Service Process
Lee, Chi-Min ; Kim, Youn-Sung ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 406~414
DOI : 10.7469/JKSQM.2012.40.3.406
Purpose: In this study, we developed a service quality audit system through analyzing service processes of airlines' cabin service. Methods: Applying the qualitative approach to service processes analysis; 'service blueprint' methodology was developed, providing airlines a blueprint for cabin service and applying the quantitative service quality audit approach called 'walk-through audit', an audit methodology tailored to airline cabin service called PCPA (Passenger Cabin Patrol Audit) was developed. Results: This study tried to apply both the qualitative and the quantitative methodologies to develop service quality audit checklist and tried to develop details to systemize them into a new methodology. Conclusion: This study will be helpful for Airline services improvement by providing 'service quality audit model', so as to find out the problems and share those with the stakeholders.
Prioritizing Core Subjects in ISO 26000 for Achieving Corporate Social Responsibility
Kim, Yun-Tai ; Riew, Moon-Charn ;
Journal of the Korean society for quality management, volume 40, issue 3, 2012, Pages 415~425
DOI : 10.7469/JKSQM.2012.40.3.415
Purpose: ISO 26000 is a newly emerging international standard for corporate social responsibility. This paper aims to derive core subjects of primary concern when introducing and practicing corporate social responsibility. Methods: Perceived performance and importance levels on core subjects in ISO 26000 are investigated, and a survey is conducted from members of organizations having published CSR reports. Frequency analysis, analysis of variance, cross tabulation and IP analysis are used to analyze surveyed data. Results: Items to be improved with high emphasis among 7 core subjects in ISO 26000 are organizational governance for public and private service sectors, fair operating practices for industrial goods manufacturing sectors, and organizational governance and environment for consumer goods manufacturing sectors. Human rights and labor practice are perceived as having high performances in comparison with importance. Conclusion: Organizations should find ways to build social responsibility into their governance systems and procedures with high priority.