• Journal of Korean Institute of Industrial Engineers
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• v.42 no.1
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• pp.1-19
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• 2016

Recently, the emergence of smartphone foster the technological convergence. This convergence no longer takes place within technologies only. Rather, convergence phenomena happen as a form of embodied services. However, previous research on convergence has been subject to the technology-oriented studies, including suggesting patent-based indexes or analyzing technological characteristics. However, investigating technology-service convergence is critical since most of new smart services are technology-based convergence services. Therefore, we analyze the pattern of technology-service convergence which occurs in the smartphone application services. We divided the smatphone application services into four categories, and employ a network analysis to represent the convergence phenomena of each category. Our study is expected to provide meaningful implication in new service development practice.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.36 no.3
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• pp.79-86
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• 2013

Recently, the number of smartphone users has skyrocketed because of a plenty of useful services that smartphone applications provide. In the Information Systems (IS) literature, however, there has been little understanding about the effects of the service quality of smatphone applications on user satisfaction and loyalty. Thereby, this study examined 1) the effects of the service quality of smartphone applications on users beliefs, perceived usefulness and easiness and 2) the effects of the user beliefs as mediating variables on users' attitude, satisfaction, and loyalty. A survey was conducted and SEM was employed to analyze the data. The results showed that the service quality of smartphone applications affect users' attitude, satisfaction, and loyalty through the mediating variables.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.10a
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• pp.189-190
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• 2017

This study analysis that how related to media use time before shuteye time. Excessive SNS and smatphone use were related to sleepquality and pattern. A positive correlation has been found between the time spent using smartphone before bedtime and sleep deprivation and disability phenomenon. The time spent is found to also affect the language of youths and behavioral violence.

• Journal of Korea Multimedia Society
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• v.15 no.1
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• pp.108-114
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• 2012

Government-related organizations and institutions are stepping up their efforts to establish information system and service for disaster prevention because of the increasing occurrence of disaster. Therefore, they are collecting numerous disaster data using various way such as using mobile device or disaster history document. However, these method requires large amount of time and effort. Moreover, it is difficult to connects with another system because previous ways fall short of standard and connectivity. Therefore, this paper focused on collecting various disaster information using smartphone application and then complement the drawbacks of previous system.

• Journal of Korea Society of Digital Industry and Information Management
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• v.11 no.4
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• pp.189-202
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• 2015

This paper is focused on the investigation of the negative factors from smart-phone as internal affecting the use of smartphone and found their relationship. For the validation of this study model, 300 university students randomly selected in Seoul and Gyeongnam province. The measurement model was evaluated by using SPSS 18.0, and the evaluated result was summarized as follows. First, it was found that the techno-stress of smartphone user significantly associated with the fun and pleasure felt from using smatphone. It was assumed that a higher techno-stress negatively affects fun and pleasure from using smartphone. Second, the techno-stress of smartphone users was found to affect smartphone addiction. This means that more techno-stress users feel as they use smartphone, the more tendency to smartphone addiction. Third, flow was significantly associated with the smartphone addiction. Forth, Flow was significantly associated with satisfaction of the smartphones use. Fifth, it was indicated that when users had more flow and addiction from using smartphone, their satisfaction level was also higher.

• The Journal of the Korea Contents Association
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• v.16 no.9
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• pp.590-599
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• 2016

This study aims to examine the effect of adolescents' life stress and smartphone use on academic impairment and to investigate the impact of parents involvement on smatphone use. Online survey are performed among Korean adolescents from 13 to 18 years old. The results show that entertainment use of smartphone and high level of smartphone addiction are significant predictors of adolescent academic impairment. In addition, significant relationships were found between academic impairment and the dimensions of life stress, such as family conflict, academic, and pressure on the future. With respect to the impact of parent involement on academic impairment and smartphone use, time limit has the positive relationship with entertainment use of smartphone, while restriction on the specific smartphone application use has the negative relationship with information use of smartphone.

• Journal of Service Research and Studies
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• v.3 no.2
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• pp.61-74
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• 2013

Lately, We have experienced increasing of Smartphone. Therefore we have experienced increasing of Application for Smartphone. This study suggested Lock-Toeic Learning Application using the smartphone. English the universal language of the world. TOEIC need to get job in Korea. It should be able to learn using LOCK-TOEIC Application of smartphone. This study add an Lock Screen Learning differentiate function of other smartphone application. We can expect Iteration learning effect using this study of Loch TOEIC smatphone application.

• Journal of Digital Convergence
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• v.19 no.11
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• pp.381-389
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• 2021

The purpose of this study is to examine the mediating effect of perceived stress on the relationships between adult anxious attachment and smartphone addiction. To examine the relationships among variables, SPSS program and Amos program were utilized to analyze with 272 college students (male 132, female 139). The present study found a partial mediation effect of perceived stress in the relationship between anxious attachment and smatphone addiction. The result of this study implys that anxious attachment influences cognitive process and the perceived stress may precipitate smartphone addiction. This finding can contribute to the field by enlarging the depth of knowledge about risk factor affecting psychological health (i.e., smartphone addiction) of college students who are "in the beginning of adulthood period" in their lifespan. Current finding may help to providing the protection and treatment of smartphone addiction of college students and help to promote the psychological health of college students.

• Journal of Korean Home Economics Education Association
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• v.27 no.1
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• pp.111-126
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• 2015

The purpose of this study was to investigate the moderating effects of perceived father's rearing attitudes on the relationship between self-efficacy and smartphone addiction in adolescents. A survey was conducted using a convenient sample drawn from 570 students from eleven junior high school in Seoul. Data were analyzed using SPSS 20.0 program. The results show that 22.4% of students was in the risk of smatphone addiction. High risk of smartphone addiction group use smartphone longer for communication and had more trouble with their parents because of smartphone use. Smartphone addiction showed negative relationship with self-efficacy and affection-rational explanation of perceived father's rearing attitude but had positive relationship with inconsistency-intrusiveness of perceived father's rearing attitude. Furthermore, the result showed the moderating effects of perceived father's rearing attitude on the relationship between self-efficacy and smartphone addiction. Therefore, to prevent smartphone addiction in adolescent, we should try to increase self-efficacy in adolescent as well as to develop educational program to assist parent to understand their children.

• Journal of Digital Convergence
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• v.14 no.12
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• pp.561-569
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• 2016

Purpose : We will clarify the situation of using a smartphone and what kind of factors are currently related when people use a smartphone while doing something else in order to obtain basic information to educate people to prevent the use of smartphone while doing something else. Methods : We conducted an anonymous self-administered questionnaire survey with 885 people who commuted by train to six companies located in Tokyo, Chiba, and Osaka and 550 university students who commuted by train to five universities located in the same areas. The research period was from April to May of 2014. Results : 33% of the subjects used a feature phone and 73% of the subjects used a smartphone. 38% of them listened to music, using their smartphones or feature phones while walking. Binominal logistic regression analysis was done with dependent variables of using a smartphone while walking and independent variables of age, sex, and educational advertisement. The results showed that people in their 20s used a smartphone while walking 4.93 times more than people in their 30s(p <0.00). No significant difference was found in the relationship between sex and educational advertisement(poster, TV, or magazine) and using a smatphone while doing something else.