• Journal of Korean Society for Quality Management
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• v.23 no.1
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• pp.115-126
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• 1995

This paper describes the method of establishing good quality system, developed to improve the effectiveness and efficiency of designing or revising quality system, based on the engineering approach. This is one approach, but with small modification, its method is applicable not only to the quality system, but to the entire management system in an organization. The best quality system is one's own system, and it must be kept simple, complete and economic.

• IE interfaces
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• v.24 no.1
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• pp.58-70
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• 2011

As more individuals and organizations participate in the complex design process of manufacturing industry, collaborative product development and management of the global supply chain have become more popular. Although the product quality concerns once focused on the manufacturing process, they are now directed at earlier stages of the design cycle where the engineering product is created as a 3D CAD model. In this paper, we describe the current state of product data quality activities in the manufacturing industry and the yardstick to measure 3D CAD data quality. Moreover we introduce a quality assurance method through the result of statistical analysis of 3D CAD models and suggest a six sigma level of CAD data quality by analyzing 76 samples provided from three Korean automotive companies.

• Design & Manufacturing
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• v.8 no.1
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• pp.23-26
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• 2014

The injection molding is used in more than 70% of total production of plastic products. Weld line in injection molded part is one of the defects in injection molding process. Weld line deteriorates not only appearance quality but also mechanical property. In this study weld quality has been examined according to the injection processing temperature, materials and mold designs. We selected four different materials such as PA, PP, ABS and PS as experimental materials. Weld quality increased as injection processing temperature increases. It was more dependent on materials flow ability. As a result, weld quality incase of rectangular core is better than circular core.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.16 no.28
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• pp.77-85
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• 1993

This paper deals with the strategic quality concepts in terms of competition reinforcements. Quality is recognized as critical to modern competition Quality systems have been evolving rapidly in recent years. The companies need to blow how to improve quality if Hey are to survive. In order to this, this paper focused on new approach of 'quality concepts,' 'quality costs & decomposition,' 'quality management & quality cultures,' etc.

• Proceedings of the KIPE Conference
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• 2001.10a
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• pp.497-501
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• 2001

Unbundled power quality service is paid much attention under the circumstances of deregulation and diversification of needs of customers for quality and price of electric power. Moreover, distributed generators (DGs) such as photovoltaic generations and wind turbines will be introduced to distribution system more and more, and reverse flow of active power has possibility to cause new problems in the distribution system such as voltage rise of distribution line and protection problem. Flexible, Reliable and Intelligent Electrical eNergy Delivery System, which is called FRIENDS, has been proposed as one of promising distribution system for such requirements, and intensive studies are under way. One of features of the system is introducing Quality Control Center (QCC) into the system for unbundled power quality service and easy installation of DGs. Two types of QCCs for such purposes are proposed, and simulation results are shown in this paper.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.40 no.4
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• pp.87-95
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• 2017

This study aims to configure what dimensions make up for smart phone after service quality, and how this service quality affects customer satisfaction and customer loyalty. Smart phone market is a market of the device leading the digital convergence as well as positioning itself as one of the national growth driving industry. To survive in this matured market, companies should have to respond actively to radical changes and customers needs in the so-called Smart Revolution environment. Lately, however, the smart phone market is prospected to move from growth phase to mature phase by the scholars. In order to proactively respond to the change in such market condition, companies need to provide absolute advantage in customer loyalty over their competitors by revolutionizing the after-sales service quality. Qualified A/S will lead to service satisfaction and achieve customer loyalty. The empirical analysis results obtained through A/S quality are as follows : First, human quality (attitude, expertise, problem-solvability), environment quality (handling agility, convenience, comfort), service policy quality (quality guarantee, additional service operation) are dimensions that make up for A/S quality. Second, A/S quality dimension showed a significant positive influence on service satisfaction and A/S satisfaction showed a positive influence on customer loyalty as well. Based on this empirical study, we propose some implications for A/S quality improvement. First, human quality dimension has relatively higher influence on A/S satisfaction in case of free A/S, so companies need to solve the product problem completely when consumer's first visit by continual employee education. Second, in case of paid A/S, the service policy quality-especially A/S Warranty period- has higher influence on A/S satisfaction.

• Asian Journal of Atmospheric Environment
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• v.5 no.4
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• pp.278-291
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• 2011

Korea has experienced dramatic development and has become highly industrialized and urbanized during the past 40 years, which has resulted in rapid economic growth. Due to the industrialization and urbanization, however, air pollutant emission sources have increased substantially. Rapid increases in emission sources have caused Korea to suffer from serious air pollution. An air pollutant emissions inventory is one set of essential data to help policymakers understand the current status of air pollution levels, to establish air pollution control policies and to analyze the impacts of implementation of policies, as well as for air quality studies. To accurately and realistically estimate administrative district level air pollutant emissions of Korea, we developed a Korean Emissions Inventory System named the Clean Air Policy Support System (CAPSS). In CAPSS, emissions sources are classified into four levels. Emission factors for each classification category are collected from various domestic and international research reports, and the CAPSS utilizes various national, regional and local level statistical data, compiled by approximately 150 Korean organizations. In this paper, we introduced for the first time, a Korean national emissions inventory system and release Korea's official 2007 air pollutant emissions for five regulated air pollutants.

• Journal of Korean Society for Quality Management
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• v.45 no.2
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• pp.175-189
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• 2017

Purpose: This study aims to built the manual for quality assurance at development stages based on the system engineering to prevent the lack of mass product capability in advance. Methods: This study have proposed quality baseline and review guidelines of outputs in system development stages for R&D quality assurance of Domestic weapons systems Results: We apply the this method to 21 projects of military area in 2016, and we present 1,291 supplementary requirements such as adding the missing test items. Conclusion: This method contribute to minimize the gap between the quality of development and production and reduce the configuration management effort during the initial production.

• Journal of Korean Society for Quality Management
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• v.28 no.2
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• pp.147-160
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• 2000

An objective of the 100PPM Quality Renovation, which is settled as the Korea quality renovation activity as well as the form of customer-oriented management renovation climate, is strengthening an enterprise competitiveness by worldwide quality insurance. In long-term, the 21 century's quality problem would not be effective without synthetic approach from the view point of management strategy. Another method to obtain the quality ascendancy could be an strategic application of, manufacturing function. In this research, the progressive direction for an effective approach to the 100PPM Quality Renovation is examined through the interpretation of process capability index. Finally, the deployment direction of quality renovation activity is searched.

• International conference on construction engineering and project management
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• 2015.10a
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• pp.284-288
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• 2015

Recently, the mandate on utilizing BIM implemented by public institutions of many countries has great impact on the significantly increasing practices of BIM. The improvement of work efficiency and productivity, which is occurred by BIM adoption, depends on the consistency and accuracy of data. To maximize the benefit of BIM, the interests in BIM data quality have been enlarging all over the world. The BIM data quality pre-check, which is conducted by designer in the design phase, offers opportunities for quality improvement by continuously assessing BIM data. However, BIM quality pre-check is being conducted under arbitrary interpretation of users because of the absence of specific review factors and assessment methods for checking BIM quality. The purpose of this study is to establish an automated BIM quality pre-checking system to improve BIM design quality effectively and efficiently. It could be expected to meet the owner's requirements and to minimize the cost and time occurred additionally from revising and reproducing data by constructing consistency and accuracy of it.