암호 기술을 이용한 디지털 콘텐츠 안전 거래 시스템 구현

양정모 (사)디지털산업정보학회 2013 디지털산업정보학회논문지 Vol.9 No.4

The amount of digital content grows exponentially by the development of the internet and the change of computing environments and the target also is getting wider. The industry using this digital content has been growing greatly. However, the distribution of pirated digital content is increasing using internet because digital content is easy to store and transmit and the damage is growing. In this paper, we propose safety trading system which can conceal the author's information safely in digital content in order to block illegal distribution of digital content. ARIA encryption algorithm is used to protect the concealed information of author in digital content and it is a help to track the illegal traders by doing fingerprinting of buyer information to digital content and managing the transaction information. The technical support for copyright dispute is to allow by providing the capability to verify illegal edit to original digital contents.

효과적인 수업 운영을 위한 디지털 학습 도구 적용 사례 연구

김성림,권준희 (사)디지털산업정보학회 2023 디지털산업정보학회논문지 Vol.19 No.2

Digital transformation is accelerating in all industries due to COVID-19 and rapidly developing ICT technology. In the field of education, teaching methods that combine various IT devices and software technologies are being applied. The education requires a future learning environment using EduTech such as digital learning tools. We perform a case study on the use of digital learning tools for effective class. In this study, digital learning tools were applied to an university class. The class was held in the second semester of 2022 at A university, with 67 students participating. In our case, QuizN, Mentimeter, and Google Forms were applied as digital learning tools. In order to evaluate our case, a survey was conducted using the Google Questionnaire. From the results of the survey evaluation, more than 85% of all survey questions answered that they were satisfied. From it, digital learning tools were shown to be effective in class operation.

디지털 기업가정신과 디지털 역량이 경영성과에 미치는 영향에 관한 연구

변충규,하환호 (사)디지털산업정보학회 2024 디지털산업정보학회논문지 Vol.20 No.4

Currently, with the rapid development of digital economy-based business and digital technology, studies on the relationship between entrepreneurship and digital competency are needed. There is a lack of research on how digital technology changes entrepreneurship, how digital entrepreneurship predicts performance results and the relationship between individual digital competencies for digital entrepreneurship. This study set digital entrepreneurship and digital competency as independent variables based on previous studies, and management performance was set as a dependent variable. Statistical methods were used to verify the effect of digital entrepreneurship and digital competency components on management performance. For empirical analysis, a questionnaire survey was conducted on 142 founders. For hypothesis verification, a structural equation model analysis was conducted using AMOS 21.0. As a result of hypothesis verification, the hypothesis that digital entrepreneurship will have a positive (+) effect on digital competency was adopted. The hypothesis that digital entrepreneurship will have a positive (+) effect on management performance was also adopted. The hypothesis that digital competency will have a positive (+) effect on management performance was also adopted. The mediating effect of digital competency was confirmed in the relationship between digital entrepreneurship and management performance. In the conclusion, the summary, implications, and limitations of this study were discussed based on the analyzed results above.

Quad-tree Fresnelet 변환을 이용한 디지털 홀로그램 워터마킹

서영호,구자명,이윤혁,김동욱 (사)디지털산업정보학회 2013 디지털산업정보학회논문지 Vol.9 No.3

This paper proposes a watermarking scheme to protect ownership of a digital hologram, an ultra-high value-added content. It performs pre-defined levels of quad-tree Fresnelet transforms. The relationship among the same-positional-blocks is extracted as the digital pre-watermark. For the relationship, we use properties of a digital hologram that a hologram pixel retains all the information of the object and that the same size of partial holograms reconstructs the same size of object but different in their view points. Also we mix a set of private data with the pre-watermark and the result is encrypted by a block cipher algorithm with a private key. Experimental results showed that the proposed scheme is very robust for the various malicious and non-malicious attacks. Also because it extracts the watermarking data instead of inserting, the watermarking process does not harm the original hologram data. So, it is expected to be used effectively for invisible and robust watermark for digital holograms.

네트워크 서비스 환경에서 MPEG-21을 활용한 디지털 콘텐츠 보호 및 컴퓨터 포렌식스 증거 관리 메커니즘

장은겸,이범석 (사)디지털산업정보학회 2010 디지털산업정보학회논문지 Vol.6 No.2

In network service environment, cultures from diversified fields are easily accessible thanks to the convenient digital content services. Unfortunately, unauthorized access and indiscreet misuse behaviors have deprived content owners of their copyrights. This study suggests an integrity-ensured model applicable for forensic evidence of digital content infringement in network service environment. The suggested model is based on MPEG-21core components for digital content protection and the system is designed in connection with the components of digital content forensics. Also, the present study suggests an efficient technology to protect and manage computer forensic evidence and digital content by authorizing digital content use and catching infringing logs of authorized users without lag in network environment for the benefit of network security and reliability.

학부모 디지털 역량 실태 및 디지털 교육에 대한 인식 분석

김미진 (사)디지털산업정보학회 2025 디지털산업정보학회논문지 Vol.21 No.2

This study investigates parents' digital competency and their perceptions of digital education in the context of digital transformation. Parents' digital competency is defined as the ability to appropriately select and use digital tools to support their children's learning. A survey was conducted with 2,459 parents in Gyeongsangbuk-do Province, using validated items based on prior research. The findings revealed that parents' digital competency was moderate or lower, and their participation in digital education programs and familiarity with AI-based digital textbooks were limited. Parents expressed significant concerns regarding the potential negative effects of digital learning on children’s physical, cognitive, and socio-emotional development. Differences in digital competency and perceptions were identified based on school levels and regional characteristics. This study highlights the necessity of expanding digital competency education programs for parents, addressing digital gaps between regions, and enhancing parental trust in digital educational innovations such as AI digital textbooks.

데스크톱 가상화에 따른 디지털콘텐츠 통제방안: 가상폴더방식의 구현사례

윤한성 (사)디지털산업정보학회 2014 디지털산업정보학회논문지 Vol.10 No.4

Recently, with the enlargement of cloud computing, virtual desktop infrastructure(VDI) can be an alternative of the existing personal computer based information environment. For the case of partially introduced VDI coexisting with personal computer environment, we suggest a virtual folder based approach to control the overall digital contents within an organization with a case of implementation. Although a centralizing device was used for storage and sharing of organization’s digital contents, it was not easy to accomplish centralizing digital contents completely. It is tried to prevent users from utilizing their own storage in their personal computers or virtual machines and to use virtual folder which transfer and store digital contents to and in EDMS. The virtual folder system of this paper looks like a real folder in a personal computer, but it is another virtual device for outer storage devices including EDMS. It can be an alternative and reference of digital contents control for future applications of cloud computing.

교원 디지털 역량 실태 분석: 경북 지역을 중심으로

김미진,박상우 (사)디지털산업정보학회 2025 디지털산업정보학회논문지 Vol.21 No.1

To respond to the era of digital transformation, it is necessary to assess the current status of teachers' digital competencies and systematically enhance them. This study aimed to investigate the digital competencies of teachers in the Gyeongbuk region. For this purpose, we conducted validity and reliability tests on the items measuring teachers' digital competencies and finalized 28 items based on the test results. Using these developed items, we collected data from 574 teachers in the Gyeongbuk region and conducted frequency analysis and difference tests according to school levels. The results showed that teachers in the Gyeongbuk region generally had high digital competencies in most areas except for advanced digital skills. Additionally, elementary school teachers had significantly higher digital competencies in many items compared to secondary school teachers. The study suggests the necessity of comparative studies between different regions.

디지털 콘텐츠 사용자의 만족에 영향을 주는 서비스 품질 요인 및 유통 채널 탐색에 관한 연구

서정한,배순한,김영국,최재영 (사)디지털산업정보학회 2011 디지털산업정보학회논문지 Vol.7 No.4

With the recent development of IT technology, the existing contents have been digitalized through various distribution channels. Accordingly, a lot of studies have been done in order to figure out the distribution and features of digital contents, In these studies, however,categorical characteristics of digital contents were not considered ; most of the previous researchers saw digital contents as only a single item or focused on some contents within particular part such as movie, music, etc. So, this study divides digital contents into movies,music and texts. I was going to study which factors affect Customer Satisfaction in relation with the kind of contents. With SERVQUAL as independent variables, which affect the Customer satisfaction, I used five factors :Design Quality, Information Quality, Security Quality, Communication Quality and Transaction Quality. As for the detailed items, I corrected them with Open-End Question and Pre Survey Research, which are more fit into the features of digital contents. This research conducted Principle Component Analysis, Reliability Test, Correlation Analysis and Regression Analysis. I verified that each factor of Service Qualities has a positive effect on Customer Satisfaction. Moreover, the factors of the effect are different according to the kind of digital contents. This paper was added Exploratory Study to find the best distribute channel. For the study, I search the possible distribute channel in each digital contents and their characteristic.

양방향 광고의 증강현실 구현을 위한 디지털로봇 활용 연구

최치권,엄기준 (사)디지털산업정보학회 2010 디지털산업정보학회논문지 Vol.6 No.3

Developments and changes in digital environment based on computer technologies and internet networks enabled us interactive communication for planning and execution through the freedom of ‘connection’, ‘sharing’, and ‘conversion’. The subject of this study, interactive commercial, might be the core of success based on creation which stems from communication design, revolution in design and technology, and conversion. Communication in modern economy is not optional, but essential. Furthermore, like evolution process up to Augmented Reality from developments of mobile communication technology, or concept in paradigm change, digital interactive commercial means the core of success, not a part of it. Therefore, in order to achieve success in the global competition structure, mobile communication design, revolution, and creation which produce added value shall be working as a base. In order to reach effective communication process performance of interactive commercial media, this study would like to propose building a media commercial system which is realized by human senses. Using this, standardized methods for interactive commercial which can be used together with augmented reality based on digital technology, and for using digital robot contents are available, along with methodology system of their use. In addition, the ultimate goal of this study aims to discover new factors through reorganization of precedent analysis and adaptation based on academic achievement and practical application. And thus, it wants to contribute to practical use of interactive commercial out of augmented reality-based communication in which technology, marketing, and design are integrated to be used in real sense.