• Journal of the Korean Society of Food Culture
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• v.33 no.2
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• pp.199-205
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• 2018

This study has utilized the Quality Function Deployment (QFD) technique in order to plan the tangible (menu) and intangible (service) product of dumpling restaurant. The engineering characteristics of tangible products were classified into product planning, purchase management, production management, and information management based on the production system of foodservice. The engineering characteristics of intangible products were also classified into physical evidence, human interaction, and pre-communication based on the service operation and delivery system. As a result of analyzing the QFD, it was found that the customer hope the hygiene factor and response factor to be improved. It is analyzed that product planning, information management, and production management should be improved first in terms of engineering characteristics considering consumer needs. In the future, by utilizing the systematic product development process that the requirements of tangible and intangible product consumers are converted to the engineering characteristics, the development of competitive product within the market will be possible, and furthermore it is expected to be useful for reducing the unnecessary time and design costs due to failure of product development.

• Journal of Information Processing Systems
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• v.10 no.2
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• pp.176-192
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• 2014

The realization of Wireless Multimedia Sensor Networks (WMSNs) has been fostered by the availability of low cost and low power CMOS devices. However, the transmission of bulk video data requires adequate bandwidth, which cannot be promised by single path communication on an intrinsically low resourced sensor network. Moreover, the distortion or artifacts in the video data and the adherence to delay threshold adds to the challenge. In this paper, we propose a two stage Quality of Service (QoS) guaranteeing scheme called Prioritized Multipath WMSN (PMW) for transmitting H.264 encoded video. Multipath selection based on QoS metrics is done in the first stage, while the second stage further prioritizes the paths for sending H.264 encoded video frames on the best available path. PMW uses two composite metrics that are comprised of hop-count, path energy, BER, and end-to-end delay. A color-coded assisted network maintenance and failure recovery scheme has also been proposed using (a) smart greedy mode, (b) walking back mode, and (c) path switchover. Moreover, feedback controlled adaptive video encoding can smartly tune the encoding parameters based on the perceived video quality. Computer simulation using OPNET validates that the proposed scheme significantly outperforms the conventional approaches on human eye perception and delay.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.5 no.3
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• pp.592-606
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• 2011

Currently, the development of multimedia communication has progressed so rapidly that the video program service has become a requirement for ordinary customers. The quality of experience (QoE) for the visual signal is of the fundamental importance for numerous image and video processing applications, where the goal of video quality assessment (VQA) is to automatically measure the quality of the visual signal in agreement with the human judgment of the video quality. Considering the codec effect to the video quality, in this paper an efficient non-reference (NR) VQA algorithm is proposed which estimates the video quality (VQ) only by utilizing the distorted video signal at the destination. The VQA feature vectors (FVs) which have high relationships with the subjective quality of the distorted video are investigated, and a hybrid NR VQA (HNRVQA) function is established by considering the multiple FVs. The simulation results, testing on the SDTV programming provided by VCEG Phase I, show that the proposed algorithm can represent the VQ accurately, and it can be used to replace the subjective VQA to measure the quality of the video signal automatically at the destinations.

• Journal of Distribution Science
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• v.16 no.7
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• pp.67-75
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• 2018

Purpose - In the 21st century, as information technology advances alongside the emergence of the 4th generation, industrial age, industrial environment has become individualized and customized. It is important to hire good quality employees for good service in the industry. The e-learning market is growing every year. Although e-learning companies are finding better quality employees in e-learning, it is not easy to find it. Companies also spend a lot of time and cost to find employee. On the employees side, they want to get a job freely when they want, but they cannot find their job easily. Furthermore, the labor market environment is changing fast. In the 4th generation, industrial age, employers require to find manpower whenever they need and want at little cost. So of their own accord, we have considered the necessity of management of human resources for employees and employers in e-learning. The purpose of this study is to propose a human cloud platform framework for enabling an efficient management of human resources in e-learning industry. Research design, data, and methodology - To pinpoint the items of a human cloud platform framework, the study was initiated according to the following process. First, items of competency relating to e-learning instructional designer was analyzed. Second, based on the items of information from this analysis, selection and validity verification took place with 5 e-learning specialists group. Third, the opinion of experts who were in charge of hiring in e-learning companies were collated with the questionnaire. Lastly, the human cloud platform framework was proposed based on opinion results. Results - The framework was comprised of 7 domains and 27 items in order to develop the human cloud platform for e-learning instructional designer. The analysis results showed that the most highly considered item were 'skill (4.60)' that employee already have the capability. Following this (in order) were 'project type (4.56)', 'work competency (4.56)', and 'strength area of instructional design (4.52)'. Conclusions - The 27 items in the human cloud platform framework were suggested in this study. Following this, we can consider to develop the human cloud platform for finding a job and hiring e-learning instructional designer easily. For successful platform operation, we need to consider reliability between employer and employee. In addition, we need quality assurance system based on operation has public confidence.

• The Journal of the Korean dental association
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• v.55 no.4
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• pp.284-294
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• 2017

Recently, education is regarded as a service item and university education services are being exported abroad. In the form of educational export operations, export of educational contents and curriculum, specific consultancy projects for foreign institutes, installation of local educational facilities, or attracting foreign students are being carried out. Korea has the potential and competitiveness to export dental education. The advantages of Korea's dental education services, such as dental equipment and materials, excellent education programs, and high-quality human resources, will enable the export of education services in various ways. Establishment of educational infrastructure and educational programs for overseas dental students, export of educational consulting items, clinical training programs for foreign dentists abroad, invitation for international clinical workshops, dispatch of faculty members, exchange student programs can be considered as exporting dental education service items. Therefore, in a long-term perspective, it is necessary to establish differential and appropriate educational export plans.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.26 no.2
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• pp.98-107
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• 2018

Recently, the airline industry has grown tremendously, and competition among airlines has intensified. Therefore, the importance of airline's service quality has been greatly emphasized. The human service provided by the airline is the biggest service the customer feels, so the customer orientation of the flight attendant is very important. The aim of this study was to identify the mediating effects of organizational commitment on the relationship among transformational leadership and customer orientation. As a results of the study, transformational leadership had positive significant effects on organizational commitment and job customer orientation. The results of this study imply that the organizational commitment play significant mediating role between transformational leadership and customer orientation.

• Journal of the Korea Society of Computer and Information
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• v.20 no.10
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• pp.127-132
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• 2015

This study is to test some expected performances coming from the introduction child care electronic voucher system, and suggest some policy implications. At first, this study established causal model on the expected performances of child care electronic voucher system, and then tested it through structural equation model on the base of survey. Survey was made through sampling employees of child care facilities in Gwangju Metropolitan City. This study showed that the expected effects of child care electronic voucher system are significant. This study suggested some implications basing on this analytical results.

• Journal of Software Assessment and Valuation
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• v.15 no.2
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• pp.129-140
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• 2019

In the IoT environment, there is a huge amount of heterogeneous devices with limited capacity. Existing trust evaluation methods are not adequate to accommodate this requirement due to the limited storage space and computational resources. In addition, since IoT devices are mainly human operated devices, the trust evaluation should reflect the social relations among device owners. There is also a need for a mechanism that reflects the tendency of the trustor and environmental factors. In this paper, we propose an adaptable trust evaluation method for SOA-based IoT system to deal with these issues. The proposed model is designed to minimize the confidence bias and to dynamically respond to environmental changes by combining direct evaluation and indirect evaluation. It is expected that it will be possible to secure trust through quantitative evaluation by providing feedback based on social relationships.

• Korean journal of food and cookery science
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• v.26 no.4
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• pp.413-421
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• 2010

The purpose of this study was to improve the satisfaction of college foodservice customers by analyzing the correlation between college student satisfaction with foodservice and customer loyalty. The questionnaire was distributed to 480 customers at six universities in Busan. The average customer satisfaction score was 2.76, and customer satisfaction was highest with food, followed by sanitation, environment, and service (in decreasing order). Customers reported the frequency with which they were satisfied when using university foodservice operations (on an increasing scale from "almost never" to "more than five times") in four areas: food (p<0.001), service (p<0.01), sanitation (p<0.05), and environment (p<0.001). The average scores of customer loyalty, intent to purchase again, intent to advertise by word-of-mouth, and intent to switch were 2.67, 2.83, 2.52, and 2.67, respectively, and these scores demonstrated differences according to frequency of foodservice use (p<0.001). Food, service, sanitation, and environment correlated significantly (+) with customer loyalty. Intent to repeat purchase showed the highest correlation with food quality (p<0.05), and intent to advertise by word-of-mouth and to continue patronizing foodservice demonstrated the highest correlations with service (p<0.01). After classifying customers into four groups according to customer satisfaction and loyalty, a comparison was done to determine satisfaction and loyalty by each customer strata. In the "loyalist" group, satisfaction with environment and the intent to advertise by repurchase were significantly higher than in the other groups (p<0.001). In "defectors" group, satisfaction with service and the intent to advertise by word-of-mouth were significantly lower than in the other groups (p<0.001).

• Journal of the Korean Society of Clothing and Textiles
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• v.37 no.7
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• pp.907-921
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• 2013

This study shows the importance of human factors in relationship marketing by revealing the influence of Hanbok salesperson's attributes on relationship quality and long-term relationship orientation at the time when a culture is newly understood. A questionnaire surveyed 376 women living around the Seoul and Daejeon Metropolitan areas from February to March 2013. SPSS WIN 20.0 and AMOS 20.0 programs analyzed the gathered data. We review the influence of Hanbok salesperson's attributes (expertise, ethics, communication skill, customer orientation, similarity, and likeability) on relationship quality and behavioral intention. The research indicates that only customer orientation and Hanbok salesperson's expertise attributes influence relationship quality. All the attributes had a positive influence; in addition, the relationship quality had a significant influence on customer loyalty. However, communication skill, similarity, and likeability did not influence relationship quality. Customer orientation, which provides a customized service based on the recognition of individual customer trends and expertise in developing a relationship with customers, are important factors to form relationship quality and loyalty.