• Journal of Digital Contents Society
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• v.19 no.5
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• pp.891-898
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• 2018

Although programming language is a core education area of software that is becoming increasingly important in the age of the fourth industrial revolution, as it requires logical thinking skills, it is recognized as a difficult subject even for SW major students. This difficulty occasionally causes SW major students to lose interest and confidence in their major during the introductory course of a programming language; making them change their majors, or give up their studies. In this study, we designed an instructional model using Scratch for educating C language which is a typical programming introductory language. To do this, we analyzed the concepts that can be trained by Scratch among the programming concepts supported by C language, and developed the examples of Scratch for exercising the concepts. The instructional model supports the progress model of learning first the programming concepts through Scratch and then expand the learning content into C language. We also conducted an experiment on the SW major freshman students of a local private university to verify the effectiveness of the model.

• Journal of Digital Convergence
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• v.16 no.5
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• pp.21-31
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• 2018

Recently, there is an increasing number of universities in which SW education is operated as a liberal arts education regardless of major. In this paper, the survey is conducted to analysis the factors affecting the non-majors students' perception of the necessity of SW education through a case study of SW liberal arts by gender, college, and SW learning experience. As a result, men, students of social science college, and students with SW learning experience strongly agreed that SW education for non-majors is essential. 'SW education is very helpful in studying my major' was analyzed as a necessary condition of SW education for non-majors. Especially, the difficulty of SW learning did not affect the recognition of the necessity of non-majors SW education. If the SW liberal education is based on the SW technology that helps their major, it will be expected that the improved learning motivation due to majors-relevance will deepen a consensus on SW education.

• Convergence Security Journal
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• v.18 no.2
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• pp.59-67
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• 2018

The programming language is a core education area of software that is becoming increasingly important in the age of the fourth industrial revolution, but it requires mathematical knowledge and logical thinking skills, so that many local private university and college students with low basic skills are having difficulties learning it. This problem occasionally causes SW-major students to lose interest and confidence in their majors during the introductory course of programming languages; making them change their majors, or give up their studies. In this study, we designed an instructional model using Scratch for educating C-language which is a typical programming introductory language. To do this, we analyzed the concepts that can be trained by Scratch among the programming concepts supported by C-language, and developed the examples of Scratch for exercising the concepts. In addition, we designed an instructional model, by which the programming concepts are first learned through Scratch and then C-language is taught, and conducted an experiment on the SW-major freshman students of a local private university to verify the effectiveness of the model. In the situation where SW education is becoming common, we expect that this study will help programming language education of security IT students.

• Proceedings of the Korea Information Processing Society Conference
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• 2024.05a
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• pp.125-127
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• 2024

최근 COVID-19 팬데믹으로 전 세계적으로 원격 근무로의 전환 속도가 가속화되면서 VPN 을 사용하는 기업이 증가하면서 VPN 을 통한 국내 개인정보 및 기술 유출이 빈번하게 일어나고 있다. 기존 전통적인 네트워크 프로토콜 분석 방법은 다양한 우회 방법과 패킷의 암호화로 인해서 VPN 프로토콜 탐지가 불가능하다. 하지만 AI 기반 모델을 사용하면 암호화된 패턴을 학습을 하여 분류가 가능하다. 따라서 본 논문에서는 오토인코더 기반 이미지 분류 기법으로 전통적인 방법으로 탐지하기 불가능하다고 생각했던 암호화된 VPN 패킷 중의 VPN 프로토콜을 직접 수집 및 탐지했고 성능이 0.99 가 나왔다.

• Journal of Digital Convergence
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• v.18 no.5
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• pp.55-63
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• 2020

Recently, there is a strong interest in SW basic education for non-major students in universities, but SW non-majors are having a hard time learning. This paper proposes a class operation method that utilizes customized contents reflecting the interests of non-majors, rather than using existing learning contents for SW majors. The proposed method is to improve the education effects by increasing the learning motivation of SW non-majors. The paper shows a case study of A university, which has operated non-major SW basic education for more than five years. The case study analyzed the change of class satisfaction of students of pre- and post- learning group that reformed major-friendly contents about the same curriculum. As a result, the students of social sciences are interested in learning contents using public data that can examine the social and cultural phenomena of the country, and humanities students are interested in text contents such as novels, history books, and SNS articles. In addition to the understanding of the lectures, the class satisfaction was also greatly improved, and it showed that the major-friendly contents is useful for SW basic education of non-majors.

• Journal of The Korean Association of Information Education
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• v.23 no.4
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• pp.329-341
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• 2019

Computer education in universities has been expanded and specialized from ICT-based education in recent years to software education such as computational thinking and programming. Especially, as the 4th Industrial Revolution is emphasized in all fields of society, software education, which is its core, is being applied as an essential liberal arts course in universities. In the case of basic SW education for all students, it is necessary to provide differentiated education that is suitable for students because their special characteristics are different. In this study, we conducted a basic SW course for general liberal arts at A-university in Seoul and analyzed the survey data from 4,927 students for about 3 years, and classified the major series and searched the appropriate education method for each subdivided group. Through the analysis, we were able to find characteristic groups such as business and commerce, art and sports major. Finally, six groups for basic-SW education are presented. Educational directions such as programming language and level of difficulty setting suitable for differentiated education are presented for each group.

• Journal of Digital Convergence
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• v.19 no.7
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• pp.51-56
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• 2021

This paper studies VPBL(Various PBL) models, applies them to classes, and analyzes results so that students of various majors can design and implement problems according to the characteristics of their majors in order to improve problem solving in education. VPBL performs the process of designing and implementing problems that reflect the characteristics of the major by applying constraints to the professor's programming language. The professor performs mini_class in the process of solving the designed problem and then shares it throughout. VPBL model apply results, The traditional teaching method was 3.51 points and the application of the VPBL model was 4.52 points, and "interaction, understanding of learning contents, and acquiring knowledge related to curriculum" were improved. In addition, VPBL has the advantage of expanding the learning range in the solving process as it is based on various problem solving, which has the effect of expanding the learning range compared to existing class models. Research on the expanded application of various SW liberal education in the future is required.

• The Journal of Korean Association of Computer Education
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• v.19 no.3
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• pp.11-19
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• 2016

Enhancement of computing education became an international phenominon including South Korea's revised national curriculum 2015. As the enhancement begins to focus on universal computing education, researches to investigate long-term effect of the enhancement is needed. To explore whether the reinforced computing education will bring which long-term impacts, this study investigated university students' experience on computer subject in their secondary schools, and major selection and achievement in a college computing course. As results, there was no statistically significant relation of taking the computer subject per se and major selection and achievement, but significant relation between contents of the subject, and major selection and achievement. This study has limitation on design and results lacking longitudinal data but contributes emphasizing need of longitudinal study to measure long-term effect of enhancement of computing education and providing clues of what impact it would bring.

• Journal of Digital Convergence
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• v.15 no.7
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• pp.123-132
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• 2017

Recently, there has been a growing interest in SW education for non-SW major in order to nurture SW convergence talent. In Korea, it is a tendency to make SW mandatory for basic education to all students regardless of their major, starting with SW-oriented universities. Through a case study of programming lesson, the paper compared differences in academic achievements and difficulties of learning between SW majors and non-majors and between the humanities department and the science department. As a result, although there was no significant difference in academic achievement according to majors, the humanities department had more difficulty in implementing programs such as practices, assignments, and team project. Through the interview, lack of understanding about programming problem itself, lack of relationship with friend or tutor that can help assignments, and difficulty in learning motivation by piecemeal curriculum knowledge alone were the main causes. The results will be expected to propose the direction of SW education for non-SW majors.

• Journal of The Korean Association of Information Education
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• v.23 no.5
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• pp.427-440
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• 2019

Software courses required for all students regardless of their major in many universities. SW educational effectiveness model needs to be developed to enable effective communication among students, professors, and SW educators, and to identify the responsibilities of SW educators. SW educational effectiveness model based on literature review is composed of computational thinking, SW literacy, SW awareness, and SW attitude. Computational thinking, focused on analysis and design of problem solving processes, consists of decomposition, pattern recognition, abstraction, and algorithms. SW literacy involves viewing social development based on SW beyond information literacy in the digital age. The SW awareness and attitude were organized by considering the collegiate contexts. The SW educational effectiveness model will be used as the basis for diagnosis tools as further studies.