• Journal of the Korean BIBLIA Society for library and Information Science
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• v.34 no.2
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• pp.275-294
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• 2023

This study aims to analyze usability of public libraries' metaverse platform. This study also examines factors that affect usability and immersion of metaverse platform of Gangbuk culture information library, Hanbat library in Daejeon, and Mapo Central library. In order to conduct this study, 60 college students participated in online survey and experiment. There was a statistically significant positive relationship between learnability and usability, and between GUI and immersion in every library. Learnability and usability of Gangbuk culture information library were statistically significantly higher than other libraries. On the other hand, GUI score and immersion of Hanbat library was significantly higher than other libraries. However, given that there were few users connected to metaverse platform, there was no significant difference in interactivity among libraries. This study examines characteristics (including strengths and weaknesses) of metaverse platform of each library. It is expected that the results of this study could contribute to the improvement of usability of public library's metaverse platform.

• Electronics and Telecommunications Trends
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• v.24 no.3
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• pp.24-31
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• 2009

IMT-Advanced 무선전송 시스템 단말모뎀 플랫폼은 다중 반송파 변조 기술, 채널 부호화 기술, 셀 탐색/동기 기술 등 핵심이 되는 요소 기술인 고속 무선 전송 기술을 구현할 수 있는 하드웨어 구조, 기능 및 인터페이스를 설계 제작하였다. 상기 단말모뎀 플랫폼에서는 기저대역 모뎀 물리계층 기능인 변조, 복조, 부호, 복호, 동기를 위한 각각의 FPGA가 실장되는 Daughter Board 형태로 구성되어 L1 기저대역 모뎀 장치에 실장된다. 그리고 PHY 계층(L1)부터 MAE 계층(L2), RRC 계층(L3)까지의 하드웨어 및 소프트웨어 수행을 지원한다. 4G용 단말모뎀을 개발하기 위하여 상용화 이전에 LTE-Advanced 테스트 베드용 단말모뎀 플랫폼을 개발하여 20 MHz 대역폭을 적용 3 km/h의 저속 이동속도에서는 최대 110 Mbps를 수신하고, 최대 55 Mbps를 송신한다. 그리고 120 km/h의 고속 이동속도에서는 최대 55 Mbps를 수신하고, 최대 28 Mbps를 송신한다. 상기 성능을 만족하는 단말모뎀 플랫폼이 개발되면 IMT-Advanced 단말모뎀 플랫폼 기술을 확보하게 된다. 따라서 이동통신 분야에서 기술적인 우위와 시장 선점을 위하여 요소기술 IPR을 확보하고, IMT-Advanced의 표준화 과정에서 이를 국제 표준으로 반영하여 로열티 창출 효과 및 기술 경쟁력을 확보하게 될 것이다. 아울러, LTE 사용자들은 대용량의 고속, 멀티미디어 송 수신을 가능하게 하는 기술로 2010년 이후 가상 현실 서비스, 3D 게임, 센싱 등 사물과 사물이 통신하는 유비쿼터스 서비스로 발전할 것으로 전망한다.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2007.05a
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• pp.101-110
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• 2007

Current strategic trends in service distribution and software development in response to Web as a platform represent a paradoxical concurrent pursuit of 'economy of scale' and 'service'. From the software perspective, the major novel elements of the Web 2.0 era are Web as a platform and the emergence of long-tail service enabling web sites to function as an independent distribution channel. The current study analyzed the platform strategy for establishing a community of interactive developer and customers taking the issue of economy of scale into consideration. Software industry should face the new reality and utilize the open source community for cost minimization and securing customer base. Furthermore, Lego-style software development should be adopted for maintaining cost-competitiveness in customized software development.

• Journal of the Korean Institute of Intelligent Systems
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• v.25 no.5
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• pp.464-469
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• 2015

This paper presents the smart system platform for remotely controlling the windows and doors system(WDS), which gathers and analyzes the state of WDS and the environmental data for preventing crimes and keeping a pleasant indoor. In particular, standard API between the smart WDS platform and the smart home platform has been presented to be easy to a home services, such as security, safety, and home appliance control. The private gateway of wire and wireless communication interfaces has been developed to remotely control and monitor the WDS for anytime and anyplace solving the crime prevention and ventilation problem. Web-and App-based user interface in order to detect the opening and shutting states and remotely control WDS have also been developed to support the mobile environment, respectively.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.11a
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• pp.717-720
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• 2006

한국 국내에는 GVM(GNFX), WIPI, BREW, MIDP 등 다양한 모바일 플랫폼이 존재하고 있으며, 각 이동통신사별로 서로 다른 플랫폼을 채택하여 사용하고 있다. 이로 인해 개발자는 하나의 콘텐츠를 서비스하기 위하여 각 이동통신사들의 플랫폼에 맞추어서 다양한 버전의 콘텐츠를 개발하거나, 개발된 콘텐츠를 다른 플랫폼에 이식하기 위하여 콘텐츠를 변환하여야 한다. 이러한 이유로 콘텐츠 서비스를 위해 많은 시간과 비용이 소모되고 있으며, 모바일 사용자는 다양한 콘텐츠를 제공받지 못하고 있다. 본 연구팀은 이러한 문제점을 해결하기 위하여 콘텐츠를 자동으로 분석하여 변환해주는 콘텐츠 자동 변환기 시스템을 연구하였고, GVM 콘텐츠를 WIPI Java 콘텐츠로 자동으로 변환해주는 GVMC-to-WIPI Java 변환기를 설계하고 구현하였다. 본 변환기는 한번 개발한 콘텐츠를 단기간 내에 다른 플랫폼의 콘텐츠로 변환할 수 있도록 지원하여, 콘텐츠를 다른 플랫폼으로 이식하기 위한 개발 기간 및 비용을 단축시켜 준다. 또한, 모바일 사용자에게 다양한 콘텐츠를 제공할 수 있도록 한다.

• The Journal of the Convergence on Culture Technology
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• v.8 no.6
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• pp.855-860
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• 2022

Today, the metaverse is understood as a concept in which the boundaries between the real and the virtual are blurring and the economic, social, and cultural activities of the real and virtual worlds are interconnected. In this study, we intend to examine the current status of the metaverse platform at home and abroad. Through this, if we can confirm the current location of the metaverse platform in Korea, we will try to identify the field of metaverse application suitable for the domestic situation. In addition, we will try to find ethical problems among the problems of the metaverse that developed rapidly. This will serve as a basis for finding solutions when using the Metaverse platform in the future.

• International Commerce and Information Review
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• v.19 no.1
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• pp.99-126
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• 2017

The Indonesian e-commerce market has grown significantly due to sustained economic growth, middle class growth, rapid increase in Internet and SNS users, and increase in accessibility of mobile broadband services. In particular, consumers' online shopping through mobile and SNS has been increasing rapidly based on the expansion of the popularity of smart phone devices. This research suggested the strategies for expanding exports of Indonesia through e-commerce platform to the Korean firms, with deep analysis of the current status and features, problems, cases, and implications etc. of Indonesia's e-commerce market. As an export expansion strategy utilizing Indonesia's e-commerce platform, this study showed the Korean firms have to build a local online distribution network, establish a logistics & delivery and payment system, acquire Halal certification for Muslim market, carry out the in-depth market research, actively implement Hanryu marketing strategy, develop a creative product, set up market segmentation strategies, and develop SNS mobile marketing.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.26 no.6
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• pp.571-581
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• 2008

With the advent of u-City(ubiquitous city) concept, the importance of urban management has been increased. GIS is a foundation for the efficient urban management and an essential technology for the development of u-City. u-City, which aims for convenient, safe, healthy, and comfortable life, provides diverse services based on advanced information technologies, and it will offer more services in the future. u-City integrated management platform enables the ease of service development, guarantees the quality of services for the resident, and provides organic information sharing. Moreover, the platform by integrating GIS and other common management functions, makes possible efficient urban management. In this paper, required functions of u-City integrated management platform for u-City service were analyzed. As a result, GIS module for management of street lights and supervision of fire was developed and the application usability of u-City integrated management platform was verified by service simulation.

• Journal of Digital Convergence
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• v.17 no.7
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• pp.351-357
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• 2019

A number of case studies and type analyzes have been conducted on mobility platform services that are rapidly evolving around the world. However, since the actual user experience is important for the development of the mobility service, research on the user side is needed. In the mobility platform service, only the car-hailing was used, and the preference factors were analyzed through the questionnaire in seven aspects of the user experience. Studies have shown significant differences according to gender. While the safety of the woman, the comfort and the kindness of the vehicle have a great influence on the satisfaction, the male affirms that the familiarity is the factor affecting the satisfaction. This study focused on the customer experience as a real user and identified key factors of selecting mobility platform service, so it is expected that it will contribute to the development of mobility platform service in the future.

• Journal of Industrial Convergence
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• v.20 no.11
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• pp.127-134
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• 2022

With the recent advent of the Fourth Industrial Revolution, the importance of the platform business is increasing. Most global companies with high market value are known as platform companies. This change is changing the business model of companies in various industries. However, existing studies have mainly focused on information-intensive industries and large companies. Therefore, this study attempted to analyze the case of Everybot, which is successfully growing in the service robot industry. Everybot is known as a company that produces robot cleaners. However, according to the result, the company has focused on developing autonomous driving technologies and pursuing platform-based business strategies rather than product-based ones. The results of this study have theoretical and practical implications by showing how domestic small and medium-sized robot companies apply platform-based business strategies to achieve long-term growth with gaining leadership in the personal service robotics market.