• 품질경영학회지
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• 제51권2호
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• pp.185-202
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• 2023

Purpose: The purpose of this study is to identify key performance evaluation items and factors that are effective and practical for project management of defense standard standard improvement projects, and to develop a quantitative performance evaluation model. Methods: For the development of a performance evaluation model for defense standard improvement projects, we analyzed past major project performance and derived evaluation items and factors. To increase the objectivity and efficiency of project evaluation, we developed an evaluation index that enables relative evaluation of evaluation targets, and calculated the main importance of evaluation items using the Analytic Hierarchy Process (AHP) method based on the main opinions of expert groups. Results: The study resulted in the identification of main performance items for defense standard improvement projects, which were classified into defense standard conformity review performance and defense standard improvement performance items. We also simplified the evaluation model by integrating various evaluation items into similar evaluation factors. Additionally, we developed a quantitative evaluation index that enables relative evaluation of the targets and verified the objectivity and validity of the suggested performance evaluation model by reevaluating it using performance data from past commissioned professional institutions Conclusion: Developing a quantitative evaluation model for defense standard improvement projects is expected to provide a means of measuring the effectiveness of the project, and to be used as a tool to determine the appropriateness and effectiveness of medium and long-term project plans.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권6호
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• pp.2464-2479
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• 2020

This paper presents a detailed subjective quality assessment for the ultra-high definition (UHD) videos having frame rates of 30fps and 60 fps. The subjective assessment is based on the ITU-R BT-500 recommendations, where double stimulus continuous quality scale (DSCQS-type II) test is performed for the evaluation of the perceived quality of the user's in terms of differential mean opinion score (DMOS). Encoding of the UHD videos by opting encoders i.e. H.264/AVC, H.265/HEVC, and VP9 at five different quantization parameter (QP) levels is done to investigate the perceived user's quality of experience (QoE) given as DMOS. Moreover, the encoding efficiency as the encoding time for each encoder and qualitative performance by employing full-reference (FR) quality metrics are presented in this work.

• Journal of Welding and Joining
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• 제12권3호
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• pp.109-117
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• 1994

Spot welding has wide used with a high work efficiency in the automotive and aerospace industries. Up to the present, the technique mainly used to test spot welds on production lines has been entirely depended upon destructive chisel or peel testing. Therefore, it's being very important assignment to secure the NDE technique which can be evaluate spot weld quality with more efficiency and high reliability. This paper discusses the feasibility of UNDE techniques to evaluate spot weld quality. For the sake of the approach to the quantitative measurement of nugget diameter and the discrimination of a the corona bond from nugget, ultrasonic c-scan image and distribution of reflective echo amplitude was measured by immersion method with the mechanical and the electronic scanning of point-focussed ultrasonic beam(25 MHz). As the results of this study, corona bond which is the most dangerous types of interface defects can be successfully detected, as well as expulsion and voids. Ultrasonic testing results were confirmed and compared by optical microscope and SAM(Scanning Acoustic Microscope) observation of the spot-weld cross section. The results show that the nugget diameter can be successfully measured with the accuracy of 0.8 mm.

• Journal of Multimedia Information System
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• 제6권4호
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• pp.317-322
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• 2019

The purpose of this study was to develop a self-management program for patients suffering from coronary artery disease (CAD), based on the self-determination theory and subsequently perform a heuristic evaluation by professionals and a quality assessment by users. The program consisted of 6 main menus and 20 submenus. Heuristic evaluation was conducted using eight principles, and as a result, a score of 1 was assigned by a professional for five principles: consistency and mapping, good ergonomics and minimalist design, flexibility and efficiency, anesthetics, and error management. Two professionals gave the principles of ease of input, screen readability, and glanceability a score of 1. In the quality assessment by the users, the system quality category had the highest score of 4.6 out of 5, and information quality had the lowest score of 3.87 out of 5. The overall average score was 4.08, which indicated the general satisfaction regarding the quality of the application. We have reflected on all the recommendations provided by the professionals based on their heuristic evaluation and incorporated them in the program.

• 농업과학연구
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• 제38권3호
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• pp.525-532
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• 2011

The aim of this study was to develop a portable electronic nose system for freshness measurement of meats, which could be an alterative of subjective measurements of human nose and time-consuming measurements of conventional gas chromatograph methods. The portable electronic system was o optimized by comparing the measurement sensitivity and hardware efficiency, such as power consumption and dimension reduction throughout two stages of the prototypes. The electronic nose systems were constructed using an array of four different metal oxide semiconductor sensors. Two different configurations of sensor array with dimension were designed and compared the performance respectively. The final prototype of the system showed much improved performance on saving power consumption and dimension reduction without decrease of measurement sensitivity of pork freshness. The results show the potential of constructing a portable electronic system for the measurement of meat quality with high sensitivity and energy efficiency.

• 한국컴퓨터정보학회논문지
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• 제13권4호
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• pp.273-280
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• 2008

본 논문은 국방 인사정보 S/W체계 개발에서 정량적 품질평가를 위한 것이다. ISO/IEC 9126에서 권고하는 국제표준에 입각한 정량적 품질평가방법을 적용한다. 계수적 평가의 6가지 기준을 제안하고 기능성, 신뢰성, 사용, 효율성, 유지보수성, 이식성과 세부 부특성 27항목을 설정하고, 품질 검사표는 S/W 품질을 측정하는 매트릭을 도표로 작성하였다. 국방사업의 특성을 반영한 우선순위에 의한 가중치를 주어 사용자의 목적에 맞는 국방 인사정보 S/W체계의 정량적인 평가방안을 연구하여 제시하였다. 정량적 품질평가적용에서 80%의 만족도와 현업 보직자 8명중 7명이 매우 만족(87.5%)과 1명은 만족(12.5%) 표시하여 신뢰성과 기능성에 대한 사용자의 만족도가 높은 것으로 판정되어 효율적인 국방 S/W사용과 효과를 분석하여 국방력의 향상에 기여하고자 한다.

• 교육시설
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• 제15권6호
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• pp.22-29
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• 2008

For university facility and space management to be public, and to increase the administrational efficiency, this research suggests an efficient as well as an objective evaluation system/index to allow national and university finances to contribute towards higher education. According to the result of this study, evaluation system for university facility can be widely divided into two categories; quality and space management. First, quality management is subdivided into three groups in order for quantitative management, school site and building area, secured building, and financial affairs and expense management. In order for an effective and appropriate space management, the second category of space management proposes seven subdivisions. Based on these subdivisions, quality management on university facility contains 10 evaluation items with marking system which allows perfect score of 50 points. The space management category contains 19 evaluation items and the marking system allows perfect score of 100 points. Therefore, this study developed total of 29 evaluation items for university facility management with marking system that allows perfect score of 150 points. The suggested evaluation system and items will be used as a valuable foundation for efficient and objective university facility management.

• 융합보안논문지
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• 제14권4호
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• pp.55-60
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• 2014

본 연구에서 제안하는 암호화 모듈 품질평가 체계는 ISO/IEC 9000 품질체계를 참조하여 Quality, Quality Factor, Quality Subfactor, Metric로 계층화된다. 암호화 알고리즘 실무적용 프로세스는 암호화 알고리즘 장단점 진단을 기초로 하여 암호화자산 평가, 알고리즘선택 포인트 분석, 품질 항목(quality factor) 도출, 제약조건도출, 암호모듈 품질평가체계 설계 등 5개단계로 설정한다. 이 5개 단계는 현장중심의 암호화 작업사례를 진단하여 업무에서 가장 필수적으로 수행되어야 할 작업순서를 도출한 것 이다. 2-Factor간 연계지표는 암호화 모듈의 품질항목(quality factor)을 발굴하고 이 품질 항목을 확보하는 환경인 암호화 작업의 제약조건 두가지 영역이다. 본 연구는 암호화 모듈 실무현장 적용체계를 하나의 표준화 모델로 제시한다. 우리는 정보기술 환경의 급속한 변화에 부응하여 암호화 알고리즘 개발과 현장 적용 모델을 다양하게 개발하므로서 암호화의 효율을 기대할 수 있을 것이다.

• 산업경영시스템학회지
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• 제43권3호
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• pp.101-111
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• 2020

Companies struggle to make their best products with high quality and service at a competitive price in global markets. However, customer needs and requirements keep changing with a variety of situations. Companies that face the changes can not stay the same and make an effort to adapt themselves to new circumstances. They would probably review the overall management system that is currently implementing to improve management efficiency. Among other things, quality might be considered to be a crucial element if they are manufacturing industries to be sustained in global markets. KSA (Korean Standards Association) is a government-affiliated organization under the Ministry of Trade, Infrastructure, and Energy. It is a Korean standards provider for quality and service industry. KSA confers national commendations for organizations, quality circles, artisans, QCEC (Quality Competitive Excellent Company), and the most honorable KNQA (Korean National Quality Award) every year. KSA established KNQA on the basis of Malcom Baldrige National Quality Award, Deming Prize, and European Quality Award. Research on quality awards shows that there are many similarities in the framework. Although KSA summarizes two factors for 13 evaluation indicators in the quality competitive excellent model of QCEC, the categorization is ambiguous to explain them according to earlier studies. We performed a deep analysis of foreign quality awards and background for KNQA and QCEC. We conducted a content analysis of KNQA and QCEC and matched evaluation items that were closely related. We proposed a quality competitiveness model with three factors, Technology, System, and Tools, summarizing 13 evaluation indicators in QCEC. Based on audit data for six years from 2012 to 2017 we carried out a confirmatory factor analysis for the proposed model by examining the model validity and fitness.

• 품질경영학회지
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• 제52권1호
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• pp.23-42
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• 2024

Purpose: This study aims to investigate the impact of two types of information quality, which are platform-oriented information quality and customer-oriented information quality, on customers' decision-making processes in the Online to offline (O2O) platform environment. Grounded in the product brokering efficiency model, which encompasses screening cost, evaluation cost, and decision quality, a model framework was developed. Furthermore, this study explores how these decision-making processes affect customer loyalty. Methods: Given that food delivery apps are the most widely used O2O service in Korea, this study targeted users of these apps for data analysis. We conducted hypothesis testing through a purposive sampling methodology focusing on food delivery app users. A Partial Least Squares Structural Equation Modeling analysis was conducted to analyze the data. The data collection occurred via an online survey from October to December 2021, with a total of 212 respondents participating. Results: The results of this study revealed the significant role of information quality in helping customers' decision processes while using food delivery apps. Specifically, it was found that platform-oriented information positively influences decision quality, while customer-oriented information significantly affects both the reduction of evaluation cost and the enhancement of decision quality. Additionally, the study indicated that lower evaluation costs and higher decision quality lead to increased platform loyalty. However, a reduction in screening cost did not have a significant impact on platform loyalty. Conclusion: While previous studies have overlooked the existence of two sides, service provider and user, in a platform, this research holds significance in its analysis of how information quality impacts loyalty by utilizing the two kinds of information quality. Practitioners can enhance customer loyalty to the platform by enriching customer-oriented information, thereby reducing customers' evaluation costs and encouraging more loyal usage of the platform.