• Journal of Digital Convergence
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• v.13 no.8
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• pp.431-438
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• 2015

Smartphone is popularized, it is a lot of development of the mobile advertising industry, is born many types of mobile advertising. Many developers in the mobile game is the advertised profitable by using the SDK of service companies that service the advertising the launch of free games. Mobile IGA banner, front advertising, we use the ad in the three forms of the front video advertising, each of advertising, have advantages and disadvantages. Although many of the games currently use a full-page ad and front video ads, these ads profitable model is use the user game play time. In order to improve the disadvantage of this method, Commonly used to analyze the three ad revenue model, looking for the element, by using the research result of the previous studies, we have proposed a new advertising Convergence profitable models.

• Journal of Digital Convergence
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• v.13 no.7
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• pp.333-340
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• 2015

Mileage system in some online media, I have a lot of use. In addition, there are a lot of companies that are making money by using the mileage system. A mileage system is the first airline in such a way that the service in the late 1980s, many states now listed sungineung and features. In addition, there are many industries that reported good results using a mileage system used by carriers in other industries. However, mileage of the current game industry has not been introduced, it is not the service by using the concept of point returning to the user is purely a function of mileage. So a lot of developed payment systems in the mobile industry since 2010, proposed a better and more current online payment systems industry has an easy hybrid revenue model for mobile games service convergence mileage using this system.

• Information and Communications Magazine
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• v.26 no.4
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• pp.19-25
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• 2009

무선 서비스들의 비약적인 발전을 거듭함에 따라 유선만의 서비스나 무선만의 서비스는 점점 힘을 잃어가고 있으며, 다양한 서비스들이 융복합되고 있다. 이러한 때 새로운 킬러서비스로 SNS가 주목받고 있고, 페이스북과 마이스페이스와 같은 유선사업자가 모바일 서비스에 적극적으로 뛰어들고 있다. 본고에서는 모바일 SNS의 기본 구성과 수익모델, 주요 사업자들의 근황 등을 통해 산업 동향과 전망에 대해서 알아본다.

• Journal of Digital Convergence
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• v.13 no.8
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• pp.245-251
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• 2015

If a digital signage system is operated in PC mounted in the Window OS then the implementing price is very high. For resolving this problem, we used the Smartphone mounted in ARM Cortex family of multi-core processor-based mobile platform. We developed a low-power low-cost digital signage system and a remote convergence content management program based on web server. This convergence system manages advertising content to a remote control device anywhere using remote control technology. This system is one integrated system with display and is a low-power consumed and is developed in very efficient hardware interface. And condition sensors(intensity of illumination, temperature, weather, GPS etc) is equipped in the developed system. Automatic contents builder and Context-aware SMIL module is also implemented in the convergence system. We achieved over 50% power savings comparing with conventional Window OS system and 16 points multi-touch in our system.

• Journal of Digital Convergence
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• v.13 no.9
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• pp.89-98
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• 2015

To celebrate the convergence era, Park Geun-Hye government has adhered to the principle sets out to secure revenue no tax increase due to the underground economy legalization, etc. Recently due to the tax deduction policies such as cash receipts and credit card is like getting better transparency on income. However, focusing on the self-employed Evaded income scale is increasing steadily. For the underground economy legalization, it has the plan to increase the transparency of the capital market due to the strengthening of the cash receipt system and the mobile payment market. The purpose of this study is that it hopes the domestic mobile payment market is expanding for the underground economy legalization. To this end, domestic financial companies are hoping to develop a variety of additional services. And the mobile payments market is hoping to gain the trust our customers due to safety and security, etc. As a result the underground economy is expected to disappear naturally.

• Journal of Digital Convergence
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• v.13 no.11
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• pp.63-70
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• 2015

The fierce competition of mobile messenger services (MMS) allows MMS providers to perform a variety of marketing campaigns and business activities to enhance user loyalty. The applied model in this study is based on Oliver's four-stage loyalty model for the formation processes of user loyalty about MMS. While social network formation and service quality are the key elements of cognitive loyalty, positive mood and negative mood are the key components of affective loyalty in the study. Conative loyalty is captured by commitment. The data of 249 KakaoTalk users at least five times for three months is empirically tested based on the research model using partial least squares. The analysis of test identifies that positive feeling and commitment significantly influences behavioral loyalty, whereas negative feeling plays a significant role in inhibiting behavioral loyalty. The findings of this study show that social network formation and service quality significantly affect only positive feeling. The analysis results reveal several insights that can help MMS managers understand the roles of cognitive, affective, conative, and behavioral loyalty in the MMS environment.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.05a
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• pp.647-650
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• 2008

네트워크 환경이 컨버젼스(convergence)되면서 하나의 단말에서 제공하는 서비스 역시 다양화되고 있다. 개인용 휴대 단말들도 기존에 개별 기능만을 주로 다루던 형태에서 다양한 융복합 서비스를 하나의 단말에서 제공하는 형태로 발전하고 있다. 따라서 본 논문에서는 컨버젼스 네트워크 환경에서 제공되는 여러 서비스를 동시에 지원하는 단말을 "복합단말(All-in-one Mobile Device)"이라 정의한다. 복합단말은 기능, 성능, 네트워크 인터페이스 측면에서 다양한 컨버젼스가 제공되고 있는데, 이 중에서 다양한 네트워크 인터페이스의 제공으로 인터페이스간 교차로 인해 기존에 존재하지 않았던 새로운 형태의 보안 위협인 Cross-service 공격이 등장하고 있다. 기존 모바일 디바이스와는 달리 복합단말에서의 Cross-service 공격은 사용자에게 과금이나 배터리 소모와 같은 치명적인 문제점을 발생시킨다. 본 논문에서는 Cross-service 공격으로부터 복합단말을 보호하기 위한 탐지 메커니즘 및 보안 요구사항을 제시한다.

• Design Convergence Study
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• v.14 no.2
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• pp.151-168
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• 2015

As the market of music download stores moved into the mobile epoch the market was growing explosively. Recently, the digital music market tends to move from the mp3 download market to streaming service and the users can use the service on their mobile devices without reference to any inconvenient download and limited storage capacity. It was found that they mainly use the recommendation music playlist, instant player, main player and sharing of the functions of the streaming service from the user behavior research. This is noticeable features that set apart from the mp3 download service. However, the interface design of the streaming app followed the previous service and it needs the optimization of its UI design. In this study, the usability of high ranked three mobile streaming apps was evaluated. The result of the test was that Naver music and Bugs had high scores overall in four sections of the streaming service features. On the other hand, the Melon had primarily high score in color application on the service. The aim of this study is to suggest the direction of the UI design of music streaming service through the understanding of essence of streaming service and evaluation the usability test.

• Journal of Digital Convergence
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• v.12 no.5
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• pp.263-269
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• 2014

Mobile Cloud Service will provide cloud services through mobile devices. Because storage space constraints and computing process performance limitations of mobile devices, this service will process in the cloud environment after moving works and data that have to process in mobile terminal. The obstacles of mobile cloud service activity will have concerned high about the reliability service, data security, and the confidentiality security. In particular, in convergence of mobile services and cloud services, each threats are expected to be generated complicatedly. In this paper, we define the type of mobile cloud services as well as security threats that can occur in mobile cloud. Also we suggest security countermeasures in mobile app. and enterprises countermeasures. We suggest verification of mobile applications for user information protection about security countermeasures in mobile app. Also we describe the cloud providers responsibility and user responsibility about enterprises countermeasures.

• Design Convergence Study
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• v.15 no.1
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• pp.233-246
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• 2016

Mobile health industry has been combined with IT technology and is attracting attention. The health application has been developed to provide users a healthy life style. First of all, 5 mobile health applications were selected and reviewed in terms of their service trend. It turned out that none of those applications had any emotional data but physical one. Secondly, to extract users' emotion, technological researches were sorted into different categories. And the result implied that text-based emotion recognition technology is the most suitable for the mobile health service. To implement the service, the application was designed and developed the process of emotion recognition system based on the contents of the research. One-dimension emotion model, which is the standard of classifying emotional data and social network service, was set up as a source. In last, to suggest the usage of health application has been combined with persuasive technology. As a result, this paper prospered a overall service process, concrete service scheme and a guidelines containing 15 services in accordance with the five emotions and time. It is expected to become a direction for indicators considering a psychological individual context.