• Journal of The Korean Association of Information Education
• /
• v.21 no.3
• /
• pp.335-342
• /
• 2017

The artificial intelligence, robot technology, Internet of things, and life sciences that create added value while dramatically transforming human life have been highlighted in the fourth industrial revolution, the next industrial revolution. In order to adapt to the 4th industry, it is necessary to educate students to develop fusion thinking and computing thinking ability. Therefore, in this study, we developed a digital Yut Playing system based on physical computing, reflecting STEAM and decomposition, pattern recognition, abstraction, and algorithm design, which are components of computing thinking. By experiencing the developed system and applying it to education, it raised interest and interest in programming education and improved programming lesson for fusion thinking and computing thinking ability.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.13 no.4
• /
• pp.13-23
• /
• 2017

In order to protect personal information and important information (confidential information, sales information, user information, etc.) in the internal network, companies and organizations apply encryption to the Server-To-Server or Server-To-Client communication section, And are experiencing difficulties due to the increasing number of known attacks and intelligent security attacks. In order to apply the existing S / W encryption technology, it is necessary to modify the application. In the financial sector, "Comprehensive Measures to Prevent the Recurrence of Personal Information Leakage in the Domestic Financial Sector" has been issued, and standard guidelines for financial computing security have been laid out, and it is required to expand the whole area of encryption to the internal network. In addition, even in environments such as U-Health and Smart Grid, which are based on the Internet of Things (IoT) environment, which is increasingly used, security requirements for each collection gateway and secure transmission of the transmitted and received data The requirements of the secure channel for the use of the standard are specified in the standard. Therefore, in this paper, we propose a secure encryption algorithm through mutual authentication and grouping for each node through H / W based Network Control Server (NCS) applicable to internal system and IoT environment provided by enterprises and organizations. We propose a protocol design that can set the channel.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.17 no.3
• /
• pp.1-7
• /
• 2021

The number of new students at many domestic universities is declining. In particular, private universities, which are highly dependent on tuition, are experiencing a crisis of existence. Amid the declining school-age population, universities are striving to fill new students by improving the quality of education and increasing the student employment rate. Recently, there is an increasing number of cases of using the accumulated big data of universities to prepare measures to fill new students. A representative example of this is the analysis of factors that affect student employment. Existing employment-influencing factor analysis studies have applied quantitative models such as regression analysis to university big data. However, since the factors affecting employment differ by major, it is necessary to reflect this. In this paper, the factors affecting employment by major are analyzed using the data of University C and the decision tree model. In addition, based on the analysis results, a roadmap for student employment by major is recommended. As a result of the experiment, four decision tree models were constructed for each major, and factors affecting employment by major and roadmap were derived.

• Journal of Digital Convergence
• /
• v.19 no.11
• /
• pp.135-144
• /
• 2021

This study investigates the underlying mechanism of YOLO in millennial consumer, especially the influence of perceived economic recession on the present-biased preference. In addition, it was attempted to expand the implicit theory by proposing the individual's entity belief as a mediator for the effect of perceived economic situation on consumers' present-biased seeking behavior. In three experimental studies, undergraduate students who both highly primed and measured negative economic situation showed more favorable attitudes towards present-biased persuasive message and related products. The results of this research provides practical implication for marketers especially in the current situation experiencing economic slowdown due to low economic growth and COVID 19.

• Human Ecology Research
• /
• v.61 no.4
• /
• pp.709-721
• /
• 2023

This study aimed to enhance awareness of diverse families and promote an inclusive, family-friendly culture by implementing the metaverse in a family festival and assessing its effects during the Covid-19 pandemic. To achieve this, the metaverse was applied and operated at the Jung-gu Family Center Family Festival in Seoul from October 29 to November 6, 2021. The design of the Metaverse Family Festival prioritized the integration of metaverse technology and the layout of program-linked spaces to create a realistic experience. The festival was operated with a focus on providing experiential activities and exhibitions. Data comprised program satisfaction and reviews from a sample of 228 festival participants. The key findings were as follows. Firstly, participants shared their interest and joy in experiencing new activities with their families through the Metaverse Family Festival. Secondly, creating a realistic family festival environment proved practical for encouraging active participation. Thirdly, the Metaverse Family Festival was perceived as promoting an inclusive, family-friendly culture by facilitating safe and accessible communication. Fourthly, the festival effectively bridged the digital gap within families, thereby enhancing digital literacy. This study offers new insights for the future design and operation of various programs in family centers and public institutions.

• Journal of KIISE:Software and Applications
• /
• v.30 no.10
• /
• pp.944-954
• /
• 2003

People are experiencing severe problems in temporal navigation as time-based contents and platforms become more popular Relatively limited research, however, has been conducted on temporal navigation compared to that on spatial navigation. This research aims to identify efficient temporal navigation aids for time-based contents. It proposes Time Navigator, a new temporal navigation system based on the episodic indexing theory, and evaluates its efficiency through two experiments with a computer-based simulator for digital TV The video contents of digital TV was focused on because it is one of the most representative time-based contents and platforms. Our results indicate that Time Navigator helps people navigate time -based contents more effectively. Its effects increase as the contents include more narratives.

• Journal of Digital Convergence
• /
• v.18 no.9
• /
• pp.373-378
• /
• 2020

With the continuous development of economic activities of influencer(people with social influence). Because of 'Influencers' bring huge economic benefits, all walks of life are creating their own 'influencers'. In the art exhibition industry, the 'influencer' art exhibition pays more attention to experiencing the audience. Although it reduces the professionalism of art exhibitions, it also lets more non-professional visitors to see and experience art exhibitions. In this paper, the write takes the 'influencer' art exhibition as the research object and divides into 'emotional immersion' and 'technological immersion', and analyzes the development status of 'influencer' art exhibition. It is a commercial marketing method to call art exhibition 'influencer'. But with the increasing demand of the public for art and culture consumption. the 'influencer' art exhibition, which can bring immersive cultural experience to the audience. It just meets the cultural consumption demand of the public. So that it has become one of the main forms of art exhibition. In the future, immersive 'influencer' art exhibition will become the main form of art exhibition. With continuous innovation and creativity, art professionalism and commercial marketing, the 'influencer' art exhibition will continue to develop.

• Journal of Digital Forensics
• /
• v.12 no.3
• /
• pp.39-54
• /
• 2018

Recently, discussions for the eradication of illegal shooting have been carried out in a socially-oriented way. The government has established comprehensive measures to eradicate cyber sexual violence crimes such as illegal shooting. Although the social interest in illegal shooting has increased, the illegal film shooting case is evolving more and more due to the development of information and communication technology. Applications that can hide confused videos are constantly circulating around the market and community sites. As a result, field investigators and professional analysts are experiencing difficulties in collecting and analyzing evidence. In this paper, we propose an evidence collection and analysis framework for illegal shooting cases in order to give practical help to illegal shooting investigation. We also proposed a system that can detect hidden applications, which is one of the main obstacles in evidence collection and analysis. We developed a detection tool to evaluate the effectiveness of the proposed system and confirmed the feasibility and scalability of the system through experiments using commercially available concealed apps.

• Journal of Digital Convergence
• /
• v.19 no.2
• /
• pp.83-92
• /
• 2021

Recently many organizations have adopted 'untact' work due to social distancing caused by Coronavirus-19. To clarify some controversy about the effectiveness from 'untact' work, it is necessary to examine the cognition of organizational members. This study identified issues in 'untact' work from the literature review, analyzed the content of in-depth interviews with workers and managers experiencing 'untact' work, and compared both groups' cognition by applying the co-orientation model. Both groups pointed out the communication difficulty as the top disadvantage and showed no significant differences in job satisfaction, organizational commitment, and work-life balance. However, the two groups showed significant differences in their cognition about performance evaluation (agreement and workers' congruence) and productivity enhancement (workers' accuracy). This paper has an academic contribution in that it has focused on cognitive gaps between workers and managers, urges organizations to devise ways to reduce the gaps, and suggests future studies with quantitative approaches.

• Journal of Internet of Things and Convergence
• /
• v.7 no.3
• /
• pp.31-37
• /
• 2021

This study aims to develop a face-to-face & non-face-to-face convergence tea culture therapy program for elderly people experiencing CORONA 19 pandemic anxiety and digital alienation, and apply the program to eight senior citizens aged 70 or older who use the K Senior Citizens' Day Care Center in P City to verify its effectiveness. Anxiety among elderly people experiencing coronavirus anxiety was 3.02 (SD 0.25) before participating in the program and 2.79 (SD 0.15), indicating a significant difference between before and after participating in the program (Z=4.245, P=.004) Based on this analysis, we present practical suggestions for the expansion of face-to-face & non-face-to-face convergence tea culture therapy programs to alleviate anxiety among elderly people who experience CORONA 19 pandemic anxiety.