• Journal of Digital Contents Society
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• v.18 no.7
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• pp.1465-1474
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• 2017

The study analyzed how the user uses the smart mobile device to assess the effects of the user's acceptance factor and user-factors affecting the work performance of Public Agencies. And Prove that leveraging smart devices can improve your business performance, It was aimed at making strategic recommendations to improve the suitability of smart mobile devices and Tasks. Smart mobile devices User Innovation has affected Usefulness, such as B=.296. p.000, it also affected Perceived Ease-of-Use, such as B=.326, p.000. job fitness has affected Perceived Ease-of-Use, such as B=.261, p.001. Usefulness and Ease-of-Use had a positive affect on work performance. Each of affect on much of B=.382 and B=.488(p.000). At the conclusion, it has been validated that the effects of smart mobile devices user Innovation and job fitness on work performances are mediated by perceived usability and perceived ease of use of the smart mobile device.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.6
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• pp.203-209
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• 2016

Digital tourism is the digital support of the tourist experience before, during and after the tourist activity[1]. The GPS-enabled mobile phones provide location-based mobile applications such as tour guide and storytelling services. In this paper, we propose the smart tour guide service platform based on GIS and develop the mobile application to provide the smart tour guide service. The proposed smart tour guide service platform consists of CMS, the multi-modal navigation system, the tour attraction content creation and management system, the tour commodity creation and management system, the smart search system, and the user terminal. The smart tour guide application supports digital tourism in the pre-tour, during tour, and post-tour using the proposed smart tour guide service platform in the popular tourist attractions in Jeju.

• Journal of Digital Convergence
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• v.13 no.6
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• pp.81-89
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• 2015

Recently, according to rapid technological development trend of mobile devices revolutionary transforming our lives in various fields, thereby combining the latest in communications technology. These mobile devices to celebrate the digital convergence era are now created a new business model due to mobility. The mobile business operators obtains a user's location information using the smart phone. The mobile business operators provide users with the area or building-related information for the user on. The mobile business operators provide users profiles to advertisers and product sellers. In this study, I propose the mobile business model and that there are no technical problems design a conceptual framework on mobile agents for mobile operators.

• Journal of Digital Convergence
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• v.14 no.11
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• pp.501-505
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• 2016

Recently, the frequency of dealing important information regarding financial services like paying through smart device or internet banking on smart device has been increasing. Also, with the development of smart device execution environment towards open software environment, it became easier for users to download and use random application software, and its security aspect appears to be weakening. This study inspects features of hardware-based smart device security technology. Furthermore, this study proposes a realization method in MTM hardware-based secure smart device execution environment for an application software that runs in smart devices. While existing MTM provides the root of trust function only for the mobile device, the MTM-based mobile security environment technology proposed in this paper can provide numerous security functions that application program needs in mobile device. The further researches on IoT devices that are compatible with security hardware, gateway security technology and methods that secure reliability and security applicable to varied IoT devices by advancing security hardware are the next plan to proceed.

• Journal of Digital Contents Society
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• v.11 no.3
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• pp.315-322
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• 2010

This study focused on mobile trend in diffusion of smart phone. Presently, it has been evolved from digital nomad to smart nomad. Smart nomad era is based on digital technology with mobility and being smart. Smart nomad that is made up high-end device and intellectual content has changed structure of industry and life style. Smart phone is a core key in smart nomad era. In 2010 smart phone has been distributed about 2.5 hundreds million which is 20% of whole mobile phone sales and the volume of smart phone sales will be getting bigger and bigger in near future. Although, there are various reasons for success of smart phone market, this research focused 4 reasons: first, development of mobile device, second, evolution of mobile content distribution, third, support of government system, fourth, success of Docomo i-mode and Apple i phone. Smart phone will grow up more rapidly. Smart phone eco-system will be more competitive in the world. In Korea, smart phone eco-system also will be very competitive. For success in the middle of this competitive environment, Korea should lead the competitive phase with development of ability of creation software and content, construction of various partnership and evolution of next generation technology and service.

• Electronics and Telecommunications Trends
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• v.31 no.2
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• pp.73-83
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• 2016

포스트 모바일 시대는 개별 스마트 기기를 사용하는 방식을 넘어 스마트폰, 웨어러블, 정보가전, 자동차, 사물인터넷 기기 등과 같은 다양한 디바이스들이 연결되고 상호제어 가능한 형태가 되어, 이를 통해 새로운 사용자 가치를 제공하게 될 것으로 전망되고 있다. 스마트 웨어러블 기술은 신체의 가까운 곳에서 사용자의 습관과 의식을 방해하지 않고 동작할 수 있다는 장점과 네트워크 연결을 기반으로 다양한 지능형 처리와 사용자 인터랙션을 가능하도록 한다는 장점을 갖고 있다. 이러한 특징 때문에 스마트 웨어러블 기술은 포스트 모바일 시대의 핵심요소로 주목받고 있다. 이에 본고에서는 스마트 웨어러블 기술 및 국내외 표준화 동향에 대해 살펴보고, 스마트 웨어러블 응용 확산에 필요한 상호호환성 이슈와 향후 나아가야 할 방향에 대해 살펴보고자 하였다.

• Annual Conference of KIPS
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• 2012.11a
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• pp.414-416
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• 2012

최근 스마트폰 사용이 확산은 모바일 컴퓨팅의 성장을 이끌고 있다. 그러나, 배터리 구동 장치의 근복적인 특성 및 무선 네트워크의 제약으로 인하여 스마트폰을 통한 모바일 컴퓨팅을 실현하는데는 여러가지 장애물이 있다. 본 연구에서는 Use case 및 스마트 폰 구성요소 관점에서 스마트폰 전력소모를 분석한다. 일반적으로 스마트폰은 다양한 컴포넌트로 구성되는데. 우리는 이러한 구성요소에서 발생하는 전원 손실을 분석하고, 다양한 Use Case 와 배터리 수명을 분석하기 위한 큐잉 모델(Queueing Model)을 개발하고 스마트폰 전력소모를 분석한 결과를 제시한다.

• Annual Conference of KIPS
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• 2011.11a
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• pp.261-264
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• 2011

최근 들어 스마트폰 보급의 확산과 더불어 일상생활에서 스마트폰 사용자들이 편리하게 이용할 수 있는 모바일 편의 서비스들의 개발도 활발하게 진행되고 있다. 본 논문에서는 안드로이드 스마트폰 환경에서 개발된 일정 안내 서비스의 설계와 구현에 대해 소개한다. 이 서비스는 선행 연구를 통해 개발된 인공지능 자동 계획 기술 기반의 모바일 퍼스널 어시스턴트 개발 도구인 스마트 스크립트 시스템을 이용하여 구현되었으며, 한 번의 버턴이나 아이콘 터치만으로 간단히 구글 캘린더에 저장중인 스마트폰 사용자의 일정 데이터를 기초로 음성 발화를 통해 그 날의 일정과 날씨를 알려주는 서비스이다. 본 논문에서는 실험을 통해 스마트 스크립트 시스템 및 일정 안내 서비스의 편리성과 효율성을 분석해본다.

• The Journal of the Korea Contents Association
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• v.11 no.12
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• pp.639-648
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• 2011

Since the emergence of the smartphone and tablet PC whose wireless internet accessibility has improved, personal computing environment has shifted from PCs to mobile web based mobile devices, and therefore the use of information and the communication method have been changing rapidly. Under the circumstance, domestic universities have actively been establishing mobile websites for smartphone users. Such mobile websites, however, focused on diverse functions and a showy design rather than on usability or accessibility, and were developed simply for the purpose of public relations. For this reason, students are now faced with difficulties in using the websites. Therefore, this paper proposes a novel web interface with the consideration of usability and accessibility in order for users to easily use and assess proper information. The matters to be taken into account in developing a mobile website are an intuitive interface design, user experiences, a user customized interface and compliance with web standards.

• The Journal of the Korea Contents Association
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• v.11 no.12
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• pp.1-11
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• 2011

An application's demonstration takes much time because there are a number of interactions involved. When a demonstration is indeed necessary, a separate session of demonstration is commonly carried out besides a presentation. If one can control the application wirelessly using mobile devices, he can present his messages effectively by having a live self-paced demonstration. This method of demonstration has not been possible to implement due to the limitations on performance and/or screen size of feature phones. Lately commercialized smartphones, however, are equipped with better performance and various features so that they can be utilized to implement the new demonstration method. With these smartphones, one can view the application images right on mobile devices to control applications directly. This paper describes the issues of design and implementation of a mobile-based demonstration system, 'Smart Demo'.