• Journal of Convergence for Information Technology
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• v.11 no.8
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• pp.129-136
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• 2021

This study aims to verify the influence of married men in their 30s and 40s on smartphone addiction, the mediating effect of depression, and the moderating effect according to age. To this end, samples were set up as a convenient sampling for married men in their 30s and 40s living in the Seoul, Gyeonggi, Incheon metropolitan. To verify the influence relationship, mediating effect, and moderation effect of the main variables, we compare the differences in influence by dividing age groups through spss win 25 program Baron & Kenny's analysis, Sobel test, and multi-regression analysis. The analysis results are as follows. First, stress has a positive effect on depression and smartphone addiction, and depression has a positive effect on smartphone addiction. Second, depression has been shown to have a partial mediating effect in the relationship between stress and smartphone addiction. Third, there was a difference in influence between stress and smartphone addiction depending on age groups. Based on the above results, we present policy implications and follow-up research suggestions.

• Journal of Digital Convergence
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• v.19 no.1
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• pp.443-451
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• 2021

The purpose of this study is to investigate the mediating effects of depression, academic helplessness, and smartphone addiction tendency in the relationship between self-esteem and grit of adolescents. Data from the 2018 (first-year) Korean Children and Youth Panel Survey were used in this study. The subjects of this study were 1,375 male and 1,166 female students in seventh grade school. The multiple mediation model analysis was conducted using the SPSS and PROCESS macro program. The results of this study are as follows. First, there was a positive correlation between self-esteem and grit, while self-esteem and grit had negative correlations with depression, academic helplessness, smartphone addiction. Second, it was found that the relationship between self-esteem and grit was mediated by depression, academic helplessness, and smartphone addiction tendency, respectively, and furthermore, it was found that all pathways mediated sequentially were also significant. These results suggest that education and intervention considering self-esteem, depression, academic helplessness, and smartphone addiction to be useful as a way to help adolescents develop interest in specific goals and continue their efforts in these days when smartphone use is common.

• Journal of Digital Convergence
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• v.11 no.5
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• pp.423-428
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• 2013

This paper is to suggest how to apply smartphone application making for literature class as a learning tool. New specialists in literature are not satisfied with the traditional learning methods for the acquisition of theoretical knowledge any more. They try to learn the making process of smartphone application using app writing tools to meet their attention and needs. As a result, they can experience "deterritoriatization" of their major. Such a new learning method not only makes the learners build up their literary knowledge, but also plays a part to meet their needs to make it reality as a practical method that satisfies their learning needs. On this basis, there can be a possibility for literature to be the important resource of the contents development for mobile application.

• Journal of Digital Convergence
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• v.11 no.4
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• pp.209-213
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• 2013

This paper aims to design and realize mobile webapp ticket reservation system based smartphone with N-tier mobile webapp framework. In mobile framework, presentation-tier utilizes HTML5/CSS3 and Sencha Touch, middle-tier consists of spring framework and MyBatis, database-tier using oracle possible to apply enterprise services mobile webbapp offices. In this study, mobile framework deploy and configuration management without the support of the app in N-tier that does not need to be considered in the smartphone-based mobile webapp ticket reservation system analysis and design, and then implementation.

• Journal of Digital Convergence
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• v.13 no.4
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• pp.247-252
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• 2015

The earth has been suffering from global warming and experiencing unusual weather caused by increased fossil fuel usage in the industrialization period. In spite of the continuous effort to resolve the problem, the amount of fossil fuel usage is increasing constantly. Public bicycle system has been introduced as a solution to the fundamental problem of the existing public transportation systems. Also public bicycle system has another advantage that riding bicycle can keep the users in good health. In this paper, a new ICT convergence public bicycle system is presented which resolves the problems of existing public bicycle systems. The presented system has strong points in low installation fee and low maintenance expenses. The effectiveness of the presented system will be proven by analyzing case studies.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.265-272
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• 2017

As Location-based services on smartphone are getting more popular, users have more concern on exposing their location information. This study developed a research model to identify how smartphone users perceive on providing information pertaining to their location based on privacy calculus theory. 203 responses were analyzed with SmartPLS 2.0. The outcome of this research is quite interesting because conventional belief of privacy calculus perspective does not hold. The privacy calculus theory is based on assumption that human being is rational and decision to provide privacy information is determined by risk and benefit aspects. However, the result of this study is in accordance with behavioral economics perspective in which emotional judgment and behavioral judgement are affected by different factors.

• Journal of Digital Convergence
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• v.12 no.10
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• pp.329-335
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• 2014

With the spread of mobile phones and wireless networks, medical imaging needs to be accessible outside the hospital for patients. We develop the mobile PACS platform that allows doctors or patients to store, search, query and transfer medical images for their convenience. This system is a mobile based platform that patients DICOM images can be viewed from the hospital PACS server, then they can be converted according to smart standardization. For this, we designed the platform to transfer the data between PACS, mPACS and users. Also we suggest to use DICOM transformation processing to display DICOM images in PACS server.

• Journal of IKEEE
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• v.19 no.4
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• pp.617-624
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• 2015

In this paper, an adult authentication system based on authentication certificate was designed and implemented using smartphone and near-field communication. It has three advantages. First, it achieves easy, convenient, and fast authentication by using smartphone and near-field communication. Second, it achieves extremely high security and reliability by exploiting authentication certificate. Third, it achieves extremely low risk of personal information leakage by generating and sending only virtual identification code. Finally, it has a proper legal basis by Digital Signature Act. It consists of adult authentication module, near-field communication control module, policy server module, and database server module. A prototype of the proposed system was designed and implemented, and it was verified to have correct operation.

• The KIPS Transactions:PartD
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• v.19D no.1
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• pp.121-126
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• 2012

The study aims to identify and classify the decision factors in selecting a device, to measure buyers' perception for the factors at the point of smart phone purchase, and finally to propose the business strategies based on those purchase pattern changes. The research performs to not only investigate the decision factors through literature reviews, but also draw the device selection factors directly from buyers. The findings illustrated how the perceptions between the first buyers and existing buyers have been changes. The analyses will practically contribute as the references when the business strategy and policy are planned by smart phone related companies and the government.

• Journal of the Korea Convergence Society
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• v.10 no.2
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• pp.293-299
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• 2019

This study aimed to analyze the relationship between interpersonal problem, stress coping strategies and mental health for university students at risk of smartphone addiction using a structural equation modeling. Key results of the analysis were as follows. The interpersonal problem increased the severity of mental health. Stress coping strategies had partial mediating effects in the relationship between interpersonal problem and mental health. Passive coping strategy was risk factor and Active coping strategy was protective factor. Based on these results, various interventions for improving mental health for university students at risk of smartphone addiction were suggested.