• Journal of the Korean Society of Clothing and Textiles
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• v.31 no.4 s.163
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• pp.594-603
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• 2007

The purpose of this study was to examine which variables affect customer relationship management in TV home shopping. Three hundred customers who had purchased fashion products in TV home shopping had participated in this study. The data was analyzed by factor analysis, t-test, correlation analysis and path analysis using SPSS program. As the result, 'service', 'information', 'contents', 'reputation', and 'benefits' variables had the effects on 'trust': especially, 'service' had the major effects on 'trust' The 'trust' and 'security' had the effects on 'commitment'. The 'price' variable had only effect on relationship maintenance. Also, 'trust' and 'commitment' had the 'relationship maintenance' Specifically 'commitment' had higher effect on relationship maintenance than 'trust' did. The results of this study would provide CRM marketing strategy for fashion marketers of TV home shopping.

• Journal of the Korea Convergence Society
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• v.4 no.2
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• pp.1-8
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• 2013

The purpose of this study was carried out to evaluate the satisfaction relate to health examination of National health insurance service in Busan. This paper provide basic information of conducted by the National Health Insurance service, and the perception of health examination to provide satisfaction. The sampling group was selected in Busan's health examinations tests can be conducted targeting. Distributed 300 questionnaires were used in the final paper, call 221 and survey was accomplished between March and th June in 2013. The analyzed results was as followed; 1) There was significant of have used medical examinations; have medical institutions use 1 month ago; cigarette smoking day; the number of drinking by demographic characteristics, the statistic difference was existed on.(p<0.05, p<0.01) 2) The satisfaction of health examination institutions were recorded to average $3.22{\pm}0.52$ points on 5-points scale; Opinion the health examination services average was $3.31{\pm}0.55$ points on 5-points scale; attitude to health examination average was $3.73{\pm}0.54$ points on 5-points scale.

• Journal of Convergence for Information Technology
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• v.10 no.1
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• pp.235-242
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• 2020

This study aims to provide direction for improvement of the hospital's management environment for customer satisfaction management, which is ultimately consumer-oriented in practice. this study was analyzed the relationship between hospital use satisfaction relative to expected level and medical service provision process for inpatients. The study method collected data from September 10 to September 30, 2018 for patients with inpatient care at hospitals and general hospitals under 300 beds, and conducted a t-test, ANOVA, and logistic regression. According to the analysis, hospital brands were the most frequently chosen reason for hospitalization, followed by doctor brands. The satisfaction level of the inpatient medical service provision process showed no statistical differences depending on the general characteristics. It has been confirmed that the hospital's satisfaction level relative to the expected level of inpatients has a causal relationship that significantly affects the hospitalized procedure the course of the provision of medical services.

• Journal of Convergence for Information Technology
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• v.10 no.12
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• pp.82-90
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• 2020

The purpose of this study was to investigate the effects of Self-Efficacy and Job Stress on Quality of Service. Data were collected through self reported structured questionnaire from Care givers using convenient sampling methods from May 1 to August 30, 2019. The data were analyzed with SPSS/WIN 25.0 using independent t-test, one way ANOVA, Pearson's correlational coefficient and multiple regression. These factors together explained 42.0% of the Quality of service in Care givers(F=13.86, p=<.001). Factor influence the Quality of Service was Self-Efficacy(β=0.56, p=<.001). The findings of this study indicate that education programs should be developed to improve the self-efficiency of caregivers and that further studies should be conducted on their effects.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.19 no.2
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• pp.161-167
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• 2008

This paper describes the overview of spectrum requirement estimation recommended in ITU-R Rec. M.1390 and [IMT.METH] and its difference for the IMT mobile service, and a (IMT.METH) methodology is applied to the spectrum estimation of the recent IMT service. The traffic model and traffic calculation algorithm is briefly described for the carried traffic which is determined in terms of the offered traffic, system rapacity, and the criteria of quality of service. And the spectrum requirement demand which is required from year 2010 to year 2015 is calculated as an example for the IMT service which is recently operated and deployed in the current Korean market after obtaining the reasonable market data and the ITU market prediction data.

• The Journal of the Korea institute of electronic communication sciences
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• v.13 no.5
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• pp.1101-1108
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• 2018

This study is a study of the school zone safety system of the platform part in which processing between device and the application, gateway function processing, and application and service function are cooperatively processed. The device part is the beacons that are supported when the student moves in the school zone. And the section of application is a service announcement that applies to smartphones. Finally, the children's protection area sign shows the number of students registered at the gateway. Gateways operate in two types. The first type is a gateway installed to identify the movement of elementary school students. The second type is a gateway to identify students who have passed through the front door of the school. The IoT platform handles various service functions, child protection area panel support and student counter processing functions.

• Journal of Korean society of Dental Hygiene
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• v.3 no.2
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• pp.209-220
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• 2003

The purpose of this study was to examine how clients who visited dental institutions perceived client services, what sorts of client services were provided to them and to what extent they were satisfied with them. It's ultimately meant to seek ways to enhance and enlarge client services. A survey was conducted on 379 residents who used dental institutions in Seoul and Gyeonggi provinces, and the findings of this study were as follows: 1. 64.6 percent of the people investigated weren't aware of client services, and 33.0 percent viewed them as part of medical services. 77.5 percent had grievances about dental institutions they'd ever used. 2. The biggest complaint was that the dental treatments they received weren't covered by the dental insurance. As for how to solve their grievances, the largest group of them told the employees of the dental institutions about their complaints or didn't use them again. When asked whether the dental institutions took any steps to get rid of their grievances, the greatest group replied they had no idea. and the second largest group answered they took no measure. 3. By age and educational level, those who were in their 60s and up and stopped at elementary school were best cognizant of client services. Among client service variables, they were most satisfied with how the employees handled their complaints, and as to overall satisfaction, their willingness to revisit ranked highest. 4. Concerning connections among client service awareness, service variables and overall satisfaction level, their awareness of client services had a positive correlational relationship with every service variable and satisfaction level. Among the service variables, prompt client services and employee attitude were positively correlated to overall satisfaction level, but service procedure, facilities and information services exercised little impact on that. 5. As for what factors affected their content with client services, their client service awareness was identified as one of the important factors to influence their use of dental institutions, the outcome of their visit and their willingness to revisit. The above-mentioned findings suggested that dental institutions should strengthen publicity activities to inform people of client services, and encourage them to express their grievances. In addition, they should take an immediate action to remove their complaints, and try to get a successful feedback to offer higher-quality medical services and customer-oriented services.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.14 no.6
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• pp.2333-2353
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• 2020

This paper proposes a novel data prioritization and transmission mechanism to minimize the number of packets transmitted and reduce network overload using the constrained application protocol (CoAP) in resource-constrained networks. The proposed scheme adopts four classification parameters to classify and prioritize data from a sensor. With the packet prioritization scheme, the sensed data having the lowest priority is only delivered using the proposed keep-alive message notification to decrease the number of packets transmitted. The performance evaluation demonstrates that the proposed scheme shows the improvement of resource utilization in energy consumption, and bandwidth usage compared with the existing CoAP methods. Furthermore, the proposed scheme supports quality-of-service (QoS) per packet by differentiating transmission delays regarding priorities.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.32 no.5
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• pp.955-963
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• 2022

The Internet of Things (IoT), combined with various technologies, is rapidly becoming an integral part of our daily life. While it is rapidly taking root in society, security considerations are relatively insufficient, making it a major target for cyber attacks. Since all devices in the IoT environment are connected to the Internet and are closely used in daily life, the damage caused by cyber attacks is also serious. Therefore, encryption communication using a network security protocol must be considered for a service in a more secure IoT environment. A representative network security protocol includes TLS (Transport Layer Protocol) defined by the IETF. This paper analyzes the performance measurement results for TLS version 1.2 and version 1.3 in an IoT device open platform environment to predict the load of TLS, a representative network security protocol, in IoT devices with limited resource characteristics. In addition, by analyzing the performance of each major cryptographic algorithm in version 1.3, we intend to present a standard for setting appropriate network security protocol properties according to IoT device specifications.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.20 no.6
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• pp.71-76
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• 2020

Recently, the market of private study room continues to grow due to increased usage of private study room. However, old study room operators often have problems with cleanliness and theft, and cannot handle them in real time. Also, there is a problem of wasting power since users usually leave their desk for a long time with the lights on. Thus, in this paper, we intended to design a service which can prevent theft, clean up the user's desk, and adjust lighting system according to the user's condition based on Arduino system. Also, we tried to design a system which sends notifications from information of android-based IoT(Internet of Things), to the terminal when other people approach to the user's desk or try to steal user's item.