• Journal of Korean Society for Quality Management
• /
• v.45 no.3
• /
• pp.483-501
• /
• 2017

Purpose: Recognizing the limitations of the previous researches that measured the quality of airline service quality only with partial evaluation items of cabin service quality. the purpose of this study is to standardize and develop assessment of the airline cabin service quality with considering the characteristics of cabin service and customer needs. Methods: The proposed method of this paper was the empirical items of airline cabin service quality was derived through reviewing and comparing the previous researches, industrial indicators like Skytrax and KS-SQI and NCS. Results: The result of this research proposed CSQ (Cabin SERVQUAL) which could consist of seven dimensions, separated by five direct customer satisfaction factors and two indirect factors required for providing customer service. Conclusion: The developed CSQ can be used for airline service quality measurement which will achieve establishing a strategy to improve customer satisfaction and satisfaction of Airline's employee.

• Journal of Korean Society for Quality Management
• /
• v.45 no.3
• /
• pp.533-547
• /
• 2017

Purpose: This study proposes the main sources of uncertainty and uncertainty analysis of a measurement system of insensitive munitions tests. Methods: We established the mathematical model for calculating measurement uncertainty of insensitive munitions tests, conducted experiments for calculating uncertainties of dynamic sensitivity and overshoot value, and estimated the distributions of uncertainty factors. Results: The measurement uncertainty calculation methods are presented, which include experimental data processing methods for calculating uncertainties of dynamic sensitivity and overshoot value. Conclusion: The measurement of explosion pressure in insensitive munitions tests is an important issue to the reporting test results and classifying reaction types. The more efforts to ensure the reliability of the insensitive munitions tests results are required.

• Journal of Korean Society for Quality Management
• /
• v.45 no.3
• /
• pp.547-560
• /
• 2017

Purpose: This study investigates the effect of CRM activities of Korean equipment construction companies on the quality satisfaction perceived by consumers as an analysis method using Kano model. Methods: It use the Kano model to classify the quality characteristics of the CRM activities of equipment construction companies, focusing on consumer perception, and analyze the effect on the level of quality satisfaction perceived by consumers. Results: The results showed that most of quality attributes of CRM activities in the equipment companies were categorized as 'one-dimensional' quality. Conclusion: The CRM activities in equipment construction compaies is verified to be essential component of successful strategy to improve customer's satisfaction.

• Journal of Korean Society for Quality Management
• /
• v.48 no.3
• /
• pp.463-479
• /
• 2020

Purpose: The purpose of this study is to evaluate the performance of heating equipments by implementing the extreme environment in which ships navigating the ice zone are exposed and to study and apply the experimental method to infer the optimized design for each factors. Methods: It is required to verify by analysis and experiment how the environment with low temperature and wind speed implemented through the test facility affects the heating walk-way and The optimum design of the heating walk-way in that extreme environment is derived using the Taguchi technique. Results: The results of this study are as follows; It was found the effect on the condition of each factor and derive optimized conditions that satisfy the performance condition of the heating walk-way in extreme use environment. Conclusion: Ships operating in Polar waters require reliable and durable facilities for all environments during sailing.

• Journal of Korean Society for Quality Management
• /
• v.43 no.3
• /
• pp.239-252
• /
• 2015

Purpose: Lead has been widely used in radiation shielding for its low price and high workability. Recently in several europe countries, use of lead was banned for environmental issues. Also lead can cause health problems like alergies. Alternative materials for lead are highly required. The purpose of this study was to propose lead free radiation shielding material. Methods: Research of radiation shielding in Korea is not easy for certain limits such as radiation materials, experimental facilities and places. The collected data through the research were simulated using MCNPX. The simulation tools used for this study were utilized Monte Carlo method. Results: we suggest new design of lead free radiation shielding material using MCNPX code comparing shielding performance of new composite materials to lead. Conclusion: This newly introduced nano-scale composite of metal and polymer makes new chance for highly lightened radiation protective garments with endurable shielding performance.

• Journal of Korean Society for Quality Management
• /
• v.43 no.3
• /
• pp.439-452
• /
• 2015

Purpose: The purpose of this study is to propose useful suggestions by analyzing cases as to how global companies have implemented a rural outreach as a part of their CSR activities. Methods: Case studies were conducted. The cases were selected through the literature review and, based on two-by-two matrices, four types of cases were classified. Results: The results of this study are as follows; CSR activities of global companies in the rural area were categorized into two parts - "where to support(agricultural business or rural area)" and "how to support(whether to connect with business or not)." Conclusion: Domestic companies need to refer to the result of this study to increase the diversity and the effectiveness of their rural outreaches of CSR activities.

• Journal of Korean Society for Quality Management
• /
• v.43 no.3
• /
• pp.409-420
• /
• 2015

Purpose: This study is to estimate the life of elevator wire rope by using the accelerated degradation test with two accelerating variables of applied load and corrosion. Methods: Linear regression method is used to find the pseudo life of elevator wire rope at each combination of accelerating variables and the median life of elevator wire rope at use condition is estimated under the assumption that the life of elevator wire rope follows lognormal distribution. Results: The particular case study demonstrated that the results of the elevator wire life estimation by using the proposed method can provide the better solutions than existing methods. Conclusion: It can be economical to use accelerated degradation model for estimating the life of elevator wire rope.

• Journal of Korean Society for Quality Management
• /
• v.43 no.3
• /
• pp.313-326
• /
• 2015

Purpose: The terminology of "policy" or "quality policy" is widely used in quality management areas. But few people know and use that word with the accurate concept. This paper compares the concepts and suggests the contents for quality policy and quality strategy. Methods: This paper compares the concepts between policy and strategy through the literatures and suggests the contents for quality policy and quality strategy by exploratory study. Results: This paper suggests the contents for quality policy and quality strategy which are useful to establish the quality planning in companies. Conclusion: Strategy and policy are intimately related, and so confused in applications, therefore distinguishing both concepts clearly is necessary for effective use of them. This paper will help the right use of both concepts by showing the examples.

• Journal of Korean Society for Quality Management
• /
• v.41 no.2
• /
• pp.233-248
• /
• 2013

Purpose: This study develops heuristic process capability indices (PCIs) using distribution-decomposition methods and evaluates the performances. The heuristic methods decompose the variation of a quality characteristic into upper and lower deviations and adjust the value of the PCIs using decomposed deviations in accordance with the skewness. The weighted variance(WV), new WV(NWV), scaled WV(SWV), and weighted standard deviation(WSD) methods are considered. Methods: The performances of the heuristic PCIs are investigated under the varied situations such as various skewed distributions, sample sizes, and specifications. Results: WV PCI is the best under the normal populations, WSD and SWV PCIs are the best under the low skewed populations, NWV PCI is the best under the moderate and high skewed populations. Conclusion: Comprehensive analysis shows that the NWV method is most adequate for a practical use.

• Journal of Korean Society for Quality Management
• /
• v.41 no.2
• /
• pp.261-276
• /
• 2013

Purpose: This study intends to offer strategic implications that can be used in Korean medicine hospitals through analysis of causal relationship among factors focusing on image improvement and trust building. Methods: Differential model was introduced to test causal relationship. Questionnaire was developed, and data was collected and analyzed with Structural Equation Modeling. Results: Medical service has effects on image, trust, and CS. CS has an effect on trustworthiness, and trustworthiness has positive effect on loyalty intention and has negative effect on switching intention. Emotional attachment has moderating functions between trust and loyalty intention and between trust and switching intention. Conclusion: This study offers practical implications to relevant managers, at the same time it has limitations that omits relevant study of inducing factor for emotional attachment.