• Convergence Security Journal
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• v.18 no.3
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• pp.149-161
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• 2018

The private military company(PMC) or the private military industry may be one of the most important, but little understood developments in security studies to have taken place over the last decade. This new industry, where firms not only supply the goods of warfare, but rather fulfill many of the professional service functions, is not only significant to the defence community, but has wider ramifications for global politics and warfare. The private military industry emerged in the early 1990s. Its underlying cause was the confluence of three momentous dynamics - the end of the Cold War and the vacuum this produced in the market of security, transformations in the nature of warfare, and the normative rise of privatization. In order to introduce MPFs(Military Provider Firms) into Korea, where in principle private citizens are prohibited to own a gun, unlike the United States, a special law should be enacted which allows them to possess weapons and fight in combat. Therefore, the National Assembly of Korea has been submitting and discussing "the Act on the Prevention and Conduction of Practice of Piracy" since 2014.

• Journal of Digital Convergence
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• v.17 no.5
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• pp.99-108
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• 2019

This study aims to explore key factors which influence user's decision-making on the adoption of e-learning. We integrated UTAUT and Information Success Models to test that four independent factors affect student satisfaction to use e-learning in Rwanda's higher education. Data was collected by surveying students of University of Rwanda and Protestant Institute of Social Sciences (n=206). The analysis results showed that performance expectancy, facilitating conditions and effort expectancy except for social influence have a significant effect on students' satisfaction. This can help university administrators understand the factors that influence students' adoption of e-learning and incorporate these results into Rwanda's e-learning design and implementation. In final, Rwanda's government can contribute to establishing the e-learning policy and allocating its relevant resources centered on student needs.

• Journal of the Korean Academy of Esthetic Dentistry
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• v.27 no.2
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• pp.105-115
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• 2018

Not to recreate the final prosthesis is the shortest way to get a successful outcome. In the case of an aesthetic prosthesis, it is important not only the condition of the oral cavity but also the whole harmony in the face such as the interpupillary line and the smile line. But the dental technician creates the prosthesis only based on the oral model. So if you want to prevent the failure of the prosthesis due to discordance with the face, it is a good idea to use patient's facial photography and provisional restorations to reproduce facial features, shapes and aesthetics before switching to a final prosthesis. To prevent the failure of the final prosthesis, it is important to communicate among the patient, the technician and the doctor according to the model diagnosis, facial and oral photos. Then all the technicians will get satisfactory results. In addition, the technician have to understand the form of natural teeth, to analyze and reproduce colors, and to understand materials in order to produce a successful aesthetic prosthesis. From now on, I will explain two parts. At first, the communication in the dental office for the successful production of aesthetic prosthesis through the clinical case. And the second, my opinion for the successful aesthetic prosthesis.

• Journal of Digital Convergence
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• v.17 no.4
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• pp.75-85
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• 2019

For the growing importance of mobile communication, this study sets out to investigate the factors that influencing mobile phone customer satisfaction behavior through a structural equation model. This study proposes six factors model as the key determinants of customer satisfaction. Furthermore, we examine the moderating effect of demographic factors. The study was conducted using a structured questionnaire, data collected from 386 active subscribers. Results confirm that brand name, social influence and after sales service are the three significant determinants of consumer satisfaction. This study finding also suggests that demographic attributes have important consequences on customer satisfaction. The study findings offer an extended theoretical understanding towards customers' mobile satisfaction in the emerging market perspective and for practitioners, potentially to other similar context.

• Journal of Korean Society of Archives and Records Management
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• v.21 no.1
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• pp.163-187
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• 2021

Although Korea's records management has achieved administrative development not only in private companies but also in public institutions, administrators and employees still lack awareness in records management. Nevertheless, knowledge management has been studied for a long time as a pillar of administration. Thus, this study compared and analyzed the records management process suggested in ISO 15489-1:2016 and the knowledge management process. In addition, by comparing and analyzing the records management components suggested by ISO 30301 and those of knowledge management suggested by ISO 30401, it was confirmed whether records management could be an axis of management similar to knowledge management. Moreover, an integrated model of records management and knowledge management was presented based on the comparative analysis of processes and management elements, and its implementation was presented from administrative and information governance perspectives.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.18 no.4
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• pp.143-152
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• 2008

The incredible progress of information and communication technology has allowed various information and communication services to emerge in the Web environment. Such a service is initiated when the user provides his/her personal information to the service provider and is then given an identifier and authentication data. A series of the processes is inconvenient as it requires authentication by the service provider each time that the user requests the service. Furthermore, as the user subscribes to more services, the volume of ID and authentication information increases. This compels the users to use an ID that is easy to remember or to register the same ID over and over, increasing the risk of ID hacking. It is clear that such threats will become more serious as our lives become more dependent upon the Internet and as the Internet service environment advances. With the introduction of different services, the need to efficiently manage ID has been raised. In this paper, a Internet Identity Management Service that enables the control of the flow of the user’s personal information, which is used and stored for the Internet service, is proposed from the user's perspective.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.22 no.5
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• pp.1145-1157
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• 2012

Google Android employs a security model based on application permissions to control accesses to system resources and components of other applications from a potentially malicious program. But, this model has security vulnerabilities due to lack of user comprehension and excessive permission requests by 3rd party applications. Broadcast intent message is widely used as a primary means of communication among internal application components. However, this mechanism has also potential security problems because it has no security policy related with it. In this paper, we first present security breach scenarios caused by inappropriate use of application permissions and broadcast intent messages. We then analyze and compare usage patterns of application permissions and broadcast intent message for popular applications on Android market and malwares, respectively. The analysis results show that there exists a characteristic set for application permissions and broadcast intent receiver that are requested by typical malwares. Based on the results, we propose a scheme to detect applications that are suspected as malicious and notify the result to users at installation time.

• The Journal of the Korea Contents Association
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• v.20 no.12
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• pp.482-491
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• 2020

This study proposed a research model based on self-determination theory and unified theory of acceptance and use of technology to explain the factors influencing intention to use sharing economy services. A total of 392 responses were collected, and structural equation analysis was performed with AMOS 22.0. The results are summarized as follows. First, self-technological aptness and trust had a positive effect on intention to use sharing economy services. Second, access bigger market and environmental friendliness had a positive effect on intention to use sharing economy services. Third, intention to use sharing economy services had a positive effect on actual usage of sharing economy services. Finally, benefits was found to strengthen the relationship between intention to use sharing economy services and actual usage of sharing economy services. The findings of this study would provide a theoretical framework for sharing economy services and important information for understanding individuals using the sharing economy services.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.49 no.4
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• pp.281-290
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• 2021

For successful operations of an airborne Active Electronically-Scanned Array (AESA) radar, which has various advantages over traditional radar systems, accurate and robust navigation is critical. This paper discusses a study on the performance analysis of an integrated navigation based on the Embedded GPS/INS (EGI) system for an aircraft equipped with an AESA radar. The models for generating the inputs for the GPS/IMU are developed. A navigation filter for a loosely-coupled GPS/IMU system is constructed. Overall navigation performance assessment procedure using a six degree of freedom aircraft simulator - along with the GPS/IMU models and the navigation filter - is introduced. The steps of the performance analysis procedure are explained using a comprehensive case study.

• Journal of Digital Convergence
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• v.20 no.4
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• pp.225-234
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• 2022

Voice commerce has emerged as a key channel for consumer searches and purchases. This study examines the continuance use intention of voice commerce, applying value-based adoption model. An online survey was conducted with 470 consumers who has experienced with voice commerce. As participants were who buys and purchases goods; or a user who uses food delivery service in voice commerce context. This study used SPSS 23.0 and Amos 23.0 for descriptive analysis, correlation analysis, confirmatory factor analysis, and structul equation modeling analysis. These reaults are as follows. First, usefuleness and response accuracy were significantly influenced the perceived value of voice commerce. Second, functional risk was significantly influenced the the perceived value of voice commerce. Third, perceived value was significantly influenced the continuance use intention of voice commerce. These results enhance understanding of voice commerce users and provide insight into the service provider of voice commerce.