• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권6호
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• pp.2087-2103
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• 2014

What is an ideal authentication method for smartphone banking services? And what are the critical elements to be considered when designing it? To provide valuable insight for these questions, this study investigates various authentication requirements to be considered in smartphone banking service with the aspect of security, convenience and cost. By applying Analytic Network Process (ANP), this study first analyzes priorities among the requirements and then draws an ideal authentication method for smartphone banking service. Moreover, a sensitivity analysis has been conducted by varying the relative importance of several requirements. The results from the judgment of 72 experts revealed that, although Korean government has obliged the use of Public Key certificate, OPT and biometric alternatives may prove to be more appropriate for the smartphone banking service. These results will contribute to the provision of more secured and convenient smartphone banking services.

• 산경연구논집
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• 제9권12호
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• pp.31-43
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• 2018

Purpose - Smartphone shopping malls provide customers with a variety of tangible and intangible services including web sites, web design, use convenience, information for products and shopping and various after services. Accordingly, it is needed to expand and classify service qualities based on the various services provided by smartphone shopping malls, and then analyze path structures of smartphone shopping malls' qualities → customer satisfaction → behavioral intention. The purpose of this study is to categorize the qualities of smartphone shopping mall users based on the e-SERVQUAL by Lee(2002) and the SERVQUAL by Parasuraman et al.(1988, 2005), the smartphone shopping malls' service qualities based on service quality of smartphone shopping malls used in the previous use studies, and the Website quality factors of service industry and to analyze path structure of smartphone shopping mall's qualities → customer satisfaction → behavioral intention on college students in order to confirm the system of smartphone shopping malls' qualities. Research design, data, and methodology - This study's survey was carried out on the college students of university located in northeastern of Seoul. It was from December 7 - 15, 2017, and a total of 240 questionnaires were distributed, with 228 collected. Of them, effective questionnaires used in the final study were a total of 201 except 27 that couldn't be used. In this study, empirical analysis was done with factor analysis, correlation analysis, multiple regression analysis, simple multiple regression analysis and moderating regression analysis by using Statistics Package SPSS18.0. Results - The study results are as follows: First, smartphone shopping malls' qualities were classified into six categories like customer system quality, Web design quality, convenience quality, information-offering quality, service quality, and product quality. Second, it showed that system quality, Web design quality, and information-offering quality had a positive impact on customer satisfaction, respectively. Third, it suggested that quality factors of smartphone shopping mall users had a positive impact on customer satisfaction in the order of quality, information-offering quality, system quality and Web design quality. Finally, it showed that customer service quality, product quality, and convenience quality did not have a positive impact on customer satisfaction. In addition, it said that customer satisfaction of smartphone shopping mall users had a positive impact on behavioral intention and thereby, the higher the customer satisfaction was, the higher the relations between reuse intention and recommendation intention were. Meanwhile, moderating regression analysis showed that trust did not have moderating effect in the relations between customer satisfaction and behavioral intention. The above study revealed that smartphone shopping malls' qualities were classified into six categories and it was possible to generalize after empirical analysis was made in the path structure. Conclusions - Smartphone shopping mall users consider usefulness of obtaining shopping information and quality on quick and abundant shopping information more important than access environment of smartphone shopping malls and kind services of smartphone shopping mall managers. Thereby, smartphone shopping mall marketers need to take service qualities like system quality and information-offering quality into more consideration.

• 문화기술의 융합
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• 제6권3호
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• pp.437-442
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• 2020

인터넷이라는 혁신적인 정보기술의 도래 이후, 정보 환경의 다이너미즘(dynamism)은 정보 이용자들의 니즈 및 행태에 있어서의 변화를 초래하였다. 이러한 급변하는 환경의 정보 이용자들에 대한 이해는 필수적이며, 이를 기초해서 정보서비스와 이를 위한 시스템을 효과적으로 구축하여 운영할 필요가 있다. 본 연구의 목적은 과학기술정보서비스시스템 이용자의 세분화(segmentation)에 따른 특성을 이해하고 콘텐츠 이용실태 조사·분석을 통하여 맞춤형 서비스와 콘텐츠 개발에 대한 개선사항을 도출함에 있다. 총 816명의 과학기술정보서비스시스템 이용자들이, 지난 9월부터 11월까지, 온라인 설문조사에 참여하였다. 수집된 데이터는 요인 분석과 클러스터 분석 기법을 적용하여, 이용자를 세분화하고 새로운 정보기술과 정보서비스에 대한 인식, 과학기술정보 니즈, 그리고 이용자들이 중요하게 생각하는 과학기술 속성 등을, 세분화된 이용자그룹에 따른 결과를 도출하였다.

• 디지털산업정보학회논문지
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• 제15권1호
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• pp.87-97
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• 2019

Reaction of people is importantly considered about specific case as a social network service grows. In the previous research on analysis of social network service, they predicted tendency of interesting topic by giving scores to sentences written by user. Based on previous study we proceeded research of sentiment analysis for social network service's sentences, which predict the result as positive or negative for movie reviews. In this study, we used movie review to get high accuracy. We classify the movie review into positive or negative based on the score for learning. Also, we performed embedding and morpheme analysis on movie review. We could predict learning result as positive or negative with a number 0 and 1 by applying the model based on learning result to social network service. Experimental result show accuracy of about 80% in predicting sentence as positive or negative.

• Journal of information and communication convergence engineering
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• 제19권4호
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• pp.284-289
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• 2021

This study attempted to identify the service satisfaction with the 119 emergency service and the factors that affect it based on the responses of subjects who used the service. Data collection was conducted from February 11 to March 11, 2021, using convenience sampling. A total of 1842 subjects who used emergency medical services using 119 ambulance in 2020 participated. For the collected data, frequency, percentage, mean, and standard deviation were calculated, and t-test, analysis of variance, and multiple regression analysis were performed using SPSS 23.0. Based on these results, to further enhance the satisfaction of users of the 119 emergency service and the quality of emergency medical services, it is important to improve the quality of paramedics through education and systems. In addition, to increase user satisfaction, efficient and systematic communication education is required. The quality of emergency medical services will increase only when communication skills required for explanations and promoting understanding are improved.

• 농촌지도와개발
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• 제28권1호
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• pp.25-39
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• 2021

This study aims to identify the causation effect between technostress and utilization of Internet information and meditation effect of information service acceptability between technostress and Internet information utilization. The data were collected from 503 woman farmers aged 20 to 65 across the country. The analysis performed a three-stage mediated regression of Bron, & Kenny (1986), using the SPSS 21.0 statistical package. The importance of accepting information services has been identified in the Sobel test. According to the analysis of the medium effect on information service acceptability, information service acceptability has a partial medium effect on the technological stress of woman farmers and the level of Internet information utilization. In order to lower the technology of woman farmers in the future, it is necessary to find ways to improve new perceptions of information technology and increase acceptability of information services.

• 한국컴퓨터정보학회논문지
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• 제22권3호
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• pp.53-60
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• 2017

The purpose of this study is to provide empirical and quantitative analysis on user's perceived privacy, security, and user satisfaction when providing visualization information about objects and service provider behaviors that users can not perceive in internet service process. Through previous research, we have examined the importance of privacy and security factors as a key factor to be considered for the characteristics of the Internet of things and the Internet of things. In addition, service blueprint, which is one of the service design methodologies to examine the flow of service usage in providing Internet service of things, was examined. In the flow of things internet service utilization, it is found that the things that are out of the user's cognitive area and the behavior of the service provider take up a large part. Therefore, the hypothesis that the trust of the Internet service security and the satisfaction of the user experience can be improved by providing the security visualization information about the behavior of the object and the invisible service provider in the non-contact aspect of the user and the object. In order to verify the hypothesis, we conducted experiments and questionnaires on the use of virtual objects' internet environment and conducted statistical analysis based on them. As a result, it was analyzed that visual information feedback on non - contact and invisible objects and service provider's behaviors had a positive effect on user's perceived privacy, security, and satisfaction. In addition, we conclude that it can be used as a service design evaluation tool to eliminate psychological anxiety about security and to improve satisfaction in internet service design. We hope that this research will be a great help for the research on application method of service design method in Internet environment of objects.

• 산업경영시스템학회지
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• 제30권3호
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• pp.82-88
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• 2007

Service engineering is a new discipline which aims at basically understanding of service and a concrete methodology using engineering approach for service design. In this paper is introduced the serviset graph [7] which is a comprehensive concept to represent service products, processes, and operation activities. The proposed concept is a degree of commonality index in a service product in order to deal with service mass customization using the input-output analysis in economic model.

• Asia pacific journal of information systems
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• 제31권4호
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• pp.491-526
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• 2021

Airlines can employ a variety of quality monitoring procedures. In this study, we employ a content analysis of 8 years of online reviews for Korean airlines in contrast to other international airlines. Online airline reviews are infrequent, relative to the total number of passengers - the number of reviews is multiple orders of magnitude lower than passenger volumes - and online airline reviews are, therefore, not representative of passenger attitudes overall. Nevertheless, online reviews may be indicative of specific service issues, and draw attention to aspects that require further study by airline operators. Furthermore, significant words and phrases used in these airline reviews may help airline operators to rapidly automate filtering, partitioning, and analysis of incoming passenger comments via other channels, including email, social media posts, and call center transcripts. The current study provides insights into the contents of online reviews of Korean vs Other-International airlines, and opportunities for service enhancement. Further, we provide a set of marker words and phrases that may be helpful for management dashboards that require automated partitioning of passenger comments.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제11권9호
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• pp.355-362
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• 2022

농업에 정보 통신 기술을 접목한 스마트팜은 단순한 생육 환경 모니터링에서 벗어나 작물 생육을 위한 최적의 환경을 발견하고 자율제어가 가능한 농업의 형태로 나아가고 있다. 이를 위해서는 관련 데이터를 수집하는 것도 중요하지만, 재배 경험과 지식을 가진 농업인 사용자들이 수집된 데이터를 다양한 관점에서 분석하여 작물 생육 환경 제어에 유용한 정보를 도출해야 할 필요가 있다. 본 연구에서는 작물 생육과 관련된 데이터를 가지고 필요한 정보를 얻고자 하는 농업인 사용자가 쉽게 데이터 분석을 할 수 있는 웹 서비스를 개발하였다. 개발한 웹 기반 데이터 분석 서비스는 데이터 분석을 위하여 R 언어를 사용하며 Node.js를 위한 익스프레스 웹 애플리케이션 프레임워크를 기반으로 개발하였다. 데이터 분석 서비스를 운영 중인 생육 환경 모니터링 시스템과 함께 적용해 본 결과 사용자는 웹 상에서 CSV 형식의 파일을 입력하거나 직접 데이터 입력함으로써 서버가 제공하는 데이터 분석을 위한 R 스크립트를 실행하여 데이터 분석을 수행할 수 있었다. 서비스 제공자는 다양한 데이터 분석 서비스를 쉽게 제공할 수 있었고, R 스크립트만 새로 추가하면 애플리케이션에 대한 수정 없이 새로운 데이터 분석 서비스 추가가 용이함을 확인하였다.