• Journal of the Korea Institute of Information Security & Cryptology
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• v.25 no.6
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• pp.1341-1351
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• 2015

As the popularization of smartphone increases the number of various applications, the number of malicious applications also grows rapidly through the third party App Market or black market. This paper suggests an investigation filter, Androfilter, that detects the fabrication of APK file effectively. Whereas the most of antivirus software uses a separate server to collect, analyze, and update malicious applications, Androfilter assumes Google Play as the trusted party and verifies integrity of an application through a simple query to Google Play. Experiment results show that Androfilter blocks brand new malicious applications that have not been reported yet as well as known malicious applications.

• Journal of Korea Multimedia Society
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• v.19 no.5
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• pp.948-956
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• 2016

Many franchise stores are in the surrounding. These stores offer many membership services. But, small traders do not provide much customer management service. For example, non-franchised cafes provide the services through paper coupons. However, most of paper coupons are available only in one store that issued the coupon. Besides, these coupons are in stamp format. Due to the absence of customers' management service, it is hard for small traders to attract customers compared to the franchise. Therefore, in this paper, We had implemented a mobile application, and applied to new customer management service in order to increase the price competitiveness of small traders. This service issues electronic coupon through a mobile app. customers can receive a relatively large amount of discount, and a deadline of coupons are short. When customers use coupons, new coupons are issued at the same time. This structure can be powerful means to lead customers' frequent visit. Small traders can gain a lot of regular customers by using this service.

• Journal of Information Technology Services
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• v.19 no.5
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• pp.125-136
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• 2020

The subject of this study is user experience analysis for OTT mobile app services. Application service quality was quantitatively measured by utilizing KS-eSQI evaluation model from a service quality perspective. The purpose of this analysis is to analyze how service reuse and other people's intention to recommend services are affected by service quality. In addition, further analysis of user experience will qualitatively look at what efforts are needed to improve OTT service quality and provide a user-friendly environment. According to the survey, the higher the level of KS-eSQI service quality, the higher the reuse of OTT services and recommendation of others. In particular, the dimensions of primary services and unexpected additional services had a higher impact on customer loyalty and recommendation of others than in other industries. Moreover, the following three implications were found to improve app services from a customer experience perspective. First, images and video thumbnails that highlight the strength of the content they provide should be actively utilized. Second, it is necessary to provide service companies with evidence for data-based work recommendations. Third, it should provide a viewing environment in which users can respond more intelligently to the various situations and conditions when they actually watch.

• Journal of Digital Contents Society
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• v.18 no.1
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• pp.115-121
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• 2017

The Korea metropolitan areas have the largest of population density in OECD countries. Those people who use public transportation is facing many difficulties in commuting and going to school. There are many applications to help this situation. However, those applications inform a regular timetable and also offer a real-time alarm to user by user's passive action. In this paper, we design and implement the application that give the real-time traffic information and the arrival notification message about subway, bus and foot to user.

• Journal of Digital Contents Society
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• v.18 no.1
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• pp.25-33
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• 2017

The development of ICT and the popularization of smart devices are affecting not only politics, economics and culture but also even education. Smart education, a concept that promotes active learning based on the latest mobile technology, is being noted for a new paradigm in education of the $21^{st}$ century. The aim of this study was to develop a mobile application, Smart Medical Terminology(SMT), allows health science students to learn medical terminology anytime, anywhere, easily and conveniently. The SMT makes learners interested in and motivated to learn medical terminology. It also provides various learning methods that enable self-direction learning in accordance with the level of learners.

• Child Health Nursing Research
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• v.24 no.1
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• pp.109-118
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• 2018

Purpose: The purpose of this study was to develop a sexual abuse prevention education program for elementary school students. Methods: Orem's Self-Care Theory (1995) and Seels & Richey's ADDIE model (1994) for developing learning materials were applied to develop this program Results: The development progress of the program consisted of 5 distinct phases: analysis, design, development, implementation, and evaluation. The contents was classified into 6 categories: the definition of sexual abuse, how to deal with sexual abuse, the situational reaction, areas with a high risk for sexual abuse, related organizations, and a wrap-up quiz. The app was easily accessible for elementary school students. Conclusion: A sexual abuse prevention program using a hybrid app may be an effective way to reach elementary students, and further research for children of various ages is required.

• Journal of Digital Contents Society
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• v.15 no.3
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• pp.339-346
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• 2014

VOD Service, which has established a solid foothold as a profit model of digital broadcasting companies, is emerging as a key application of the N-screen technologies and services. In the circumstance, broadcasting companies are trying to promoting their VOD services by providing mobile services for improving the VOD service usability. The paper introduces a VOD mobile app (of a domestic digital cable broadcasting), which includes the functions of promoting the VOD programs and events printed on a VOD guide book, directly transmitting the information (e.g., book-marking and remote-control signals) to a set-top box, and watching the video contents stored in the mobile device on TV.

• The Journal of the Convergence on Culture Technology
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• v.1 no.4
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• pp.65-69
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• 2015

This study can read register reviews and search read information that users want by musical, drama and movie by using DB by developing App providing the newest culture view and information in android smart phone, when users want to enjoy cultural life. Also, the administrator logins as Administrator-mode and controls cultural information and makes smooth controlling by identifying user's information. In addition, the user logins as User-mode and reads cultural information and can make possible in reading and writing reviews. It makes possible to enjoy leisure activity as cultural activity by identifying reliable performance information via recommendation of friend groups.

• Journal of Information Technology Services
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• v.16 no.4
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• pp.213-222
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• 2017

The advancement of ICT is changing every field of life. It becomes possible with the penetration of personalized devices, that is, smartphone. The boom of IoT will come when there exist diversified and personalized services. In general, we might admit that it is needed that the more privatized services than the overall serviced. Jeju Island is the only one special self-governing province in Republic of Korea and deserves to be proud of the unique culture from its long historical background. One of the very regional culture which performs by women divers, Haenyeo activity or culture, was registered as Intangible Cultural Heritage. When authors were researched Jeju Haenyeo as a worthy reserving service, we recognized that it has never considered to use any point of ICT/IoT yet. Because IoT holds the high potentiality to create any service scenario between interesting groups. We will design a few services for Haenyeo which covers their job territory or daily life, adopts up-to-date technology or method such as sensored network, smart contract and App/Web. In this paper, we intent to show the simplicity and easiness of the application of IoT not to much inconspicuous target. So, we suggest a specialized IoT service for the reservation and promotion of Haenyeo Culture. This service would be composed of sensors, IoT network and App/Web at home and office. This service can be used among interesting groups : Haenyeo, policy maker, manufacturer, service provider and culture consumer.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.05a
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• pp.496-498
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• 2016

The current domestic subway has been conducting specialized transportation seats, aimed at whomever wish to use metro not only for vulnerable and disabled people but also for 'pregnant women', which mostly concerns for women during their pregnancy. However so far, such measures have not shown to be effective enough for the community to consider pregnant women as 'weaker transportation users'. Therefore, this paper announces a new seat arrangement system proposal for these specialized seats to be exerting advantageous influences for pregnant women. The grounds for this proposal are using "Hybrid Beacon", which is a short-range communication technology, and combining this to the Mobile Application. The proposal starts with observing the current problem related to the specialized seats for pregnancy, and follows by the concept of the system and the scenario.