• Journal of Intelligence and Information Systems
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• v.24 no.2
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• pp.37-57
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• 2018

With the spread of smart phones, interest in mobile media is on the increase as useful media recently. Mobile media is assessed as having differentiated advantages from existing media in that not only can they provide consumers with desired information anytime and anywhere but also real-time interaction is possible in them. So far, studies on mobile advertising were mostly researches analyzing satisfaction with, and acceptance of, mobile advertising based on survey, researches focusing on the factors affecting acceptance of mobile advertising messages and researches verifying the effect of mobile advertising on brand recall, advertising attitude and brand attitude through experiments. Most of the domestic mobile advertising studies related to advertisement effect and advertisement attitude have been conducted through experiments and surveys. The advertising effectiveness measure of the mobile ad used the attitude of the advertisement, purchase intention, etc. To date, there have been few studies on the effects of mobile advertising on actual advertising data to prove the characteristics of the advertising platform and to prove the relationship between the factors influencing the advertising effect and the factors. In order to explore advertising effect of mobile advertising platform currently commercialized, this study defined advertising characteristics and media characteristics from the perspective of advertiser, advertising platform and publisher and analyzed the influence of each characteristic on advertising effect. As the advertisement characteristics, we classified advertisement format classified by bar type and floating type, and advertisement material classified by image and text. We defined advertisement characteristics of advertisement platform as Hedonic and Utilitarian media characteristics. As a dependent variable, we use CTR, which is the ratio of response (click) to ad exposure. The theoretical background and the analysis of the mobile advertising business, the hypothesis that the advertisement effect is different according to the advertisement specification, the advertisement material, In the ad standard, bar ads are classified as static framing, Floating ads can be categorized as dynamic framing, and the hypothetical definition of floating advertisements, which are high-profile dynamic framing ads, is highly responsive. In advertising, images with high salience are defined to have higher ad response than text. In the media characteristics classified as practical / hedonic type, it is defined that the hedonic type media has a more relaxed tendency than the practical media, and there is a high possibility of receiving various information because there is no clear target. In addition, image material and hedonic media are defined to be highly effective in the interaction between advertisement specification and advertisement material, advertisement specifications and media characteristics, and advertisement material and media characteristics. As the result of regression analysis on each characteristic, material standard, which is a characteristic of mobile advertisement, and media characteristics separated into 'Hedonic' and 'Utilitarian' had significant influence on advertisement effect and mutual interaction effect was also confirmed. In the mobile advertising standard, the advertising effect of the floating advertisement is higher than that of the bar advertisement, Floating ads were more effective than text ads for image ads. In addition, it was confirmed that the advertising effect is higher in the practical media than the hedonic media. The research was carried out with the big data collected from the mobile advertising platform, and it was possible to grasp the advertising effect of the measure index standard which is used in the practical work which could not be grasped in the previous research. In other words, the study was conducted using the CTR, which is a measure of the effectiveness of the advertisement used in the online advertisement and the mobile advertisement, which are not dependent on the attitude of the ad, the attitude of the brand, and the purchase intention. This study suggests that CTR is used as a dependent variable of advertising effect based on actual data of mobile ad platform accumulated over a long period of time. The results of this study is expected to contribute to establishment of optimum advertisement strategy such as creation of advertising materials and planning of media which suit advertised products at the time of mobile advertisement.

• KIPS Transactions on Software and Data Engineering
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• v.2 no.8
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• pp.555-564
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• 2013

Innovative evolution in mobile devices along with recent spread of Tablet PCs and Smart Phones makes a new change not only in individual life but also in enterprise applications. Especially, in the case of medium-large mobile applications for large enterprises which generally takes more than 3 months of development periods, importance and complexity increase significantly. Generally Agile-methodology is used for a development process for the medium-large scale mobile applications, but some issues arise such as high dependency on skilled developers and lack of detail development directives. In this paper, S-MADP (Smart Mobile Application Development Process) is proposed to mitigate these issues. S-MADP is a service oriented development process extending a object-oriented development process, for medium-large scale mobile applications. S-MADP provides detail development directives for each activities during the entire process for defining services as server-based or client-based and providing the way of reuse of services. Also, in order to support various user interfaces, S-MADP provides detail UI development directives. To evaluate the performance of S-MADP, three mobile application development projects were conducted and the results were analyzed. The projects are 'TBS(TB Mobile Service) 3.0' in TB company, mobile app-store in TS company, and mobile groupware in TG group. As a result of the projects, S-MADP accounts for more detailed design information about 'Minimizing the use of resources', 'Service-based designing' and 'User interface optimized for mobile devices' which are needed to be largely considered for mobile application development environment when we compare with existing Agile-methodology. Therefore, it improves the usability, maintainability, efficiency of developed mobile applications. Through field tests, it is observed that S-MADP outperforms about 25% than a Agile-methodology in the aspect of the required man-month for developing a medium-large mobile application.

• Korea Science and Art Forum
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• v.31
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• pp.21-32
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• 2017

Local festivals form the regional cultures and atmosphere of communication; they increase the demand of domestic tourism businesses and thus, have an important role in ripple effects (e.g. regional image improvement, tourist influx, job creation, regional contents development, and local product sales) and economic revitalization. IoT (Internet of Thing) technologies have been developed especially, beacon-one of the IoT services has been applied as plenty of types and forms both domestically and internationally. However, notwithstanding expansion of current digital mobile technologies, it still remains as difficult for the individual to track the information about all the local festivals and to fulfill the tourists' needs of enjoying festivals given the weak strategic approaches and advertisement activities. Furthermore, current festival-related mobile applications don't function well as delivering information and have numerous contents issues (e.g. ways of information delivery within the festival places, independent application usage for each festival, one time usage due to one time event). This research, based on the background mentioned above, aims to develop the local festival mobile application and data analysis system applying beacon technology. First of all, three algorithms were developed, namely, 'festival crowding algorithm', 'visitor stats algorithm', and 'customized information algorithm', and then beta test was followed with the developed application and data analysis system. As a result, they could form the database of visitors' types and behaviors, and provide functions and services, such as personalized information, waiting time for festival contents, and 'hot place' function. Besides, in Google Play store, they also got the titles given with more than 13,000 downloads within first three months and as the most exposed application related with festivals; and, thus, got credited with their marketability and excellence. This research follows this order: chapter 2 shows the literature review of local festival related with technology development, beacon service, and festival application. In Chapter 3, design plans and conditions are described of developing local festival mobile application and data analysis system with beacon. Chapter 4 evaluates the results of the beta performance test to verify applicability of the developed application and data analysis system, and lastly, chapter 5 explains the conclusion and suggests the future research.

• Proceedings of the Korea Contents Association Conference
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• 2019.05a
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• pp.311-312
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• 2019

최근 기업의 클라우드 도입 확산으로 인해 정보자산이 분산됨에 따라 보호해야 하는 접점이 점차 증가 되고 있다. 또한, 모바일의 업무 활용 증가, 망 분리 및 내부 사설 클라우드의 도입 등 기업 내 변화된 IT 환경으로 인해 네트워크 구성이 더욱 더 복잡해지고 있으며, 이로 인해 보안 수준 유지가 어려워지고 있다. 특히, 클라우드 컴퓨팅에서는 보호해야 하는 자원이 기업 외부에 분산되어 있어 기존처럼 경계를 구축하는 것은 어려운 일이다. 본 논문에서는 CSA가 주도하는 SDP 표준화 동향 및 SDP의 구성요소와 동작 원리에 대한 연구를 진행하고, 핵심 기술인 SPA 및 Dynamic Firewall 기술을 활용하여 기존 접근통제 방식의 문제점을 개선하기 위한 방안을 제시하고자 한다.

• The Journal of Society for e-Business Studies
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• v.8 no.3
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• pp.165-176
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• 2003

Instead of existing cell phones, PDAs are observed as leading wireless Internet devices recently Numerous applications are developed by extended usage of PDAs and it should be installed appropriately according to devices. Furthermore, when battery is discharged, all data stored in RAM(Random Access Memory) becomes obsolete. So it should be recovered or reinstalled from flash memory, backup media or something. In this paper, we present an automatic application installation system(PAIS : PDA Automatic Installation System) to solve problems that users have to install applications by themselves whenever it is necessary. With this system, users feel comfortable by saving time and effort to install each applications and application development companies save cost needed to make materials illustrating installation process. Consequently PAIS may flourish wireless Internet business.

• Review of KIISC
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• v.17 no.1
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• pp.11-21
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• 2007

최근 휴대전화의 확산과, 웰빙에 대한 관심이 높아지면서, 휴대전화를 매개로 한 새로운 u-health서비스에 관한 관심이 고조되고 있다. 휴대폰을 매개로 한 u-health 서비스가 다양한 만큼 휴대전화 사업자들이 다양한 u-health 서비스를 효율적이고 체계적으로 개발하는 방법 또는 기술을 갖추는 것은 중요하다. 사실 서비스 관점에서는 전혀 다르게 보이는 u-health서비스들도 서비스 구조, 단위 서비스, 데이터 레벨등과 같은 관점에서 바라보면 많은 부분에서 공통점을 가지고 있다. 따라서 다양한 서비스들을 각각 독립적으로 개발해나가는 것 보다는 각각의 서비스들에 공통되는 특징들을 모아서 공유하고 재사용할 수 있게 지원하는 플랫폼을 준비하고 준비된 플랫폼 상에서 u-health 서비스를 개발하는 것이 효과적이다. 본 논문에서는 u-health 서비스 개발을 위해 필요한 공통적인 핵심 기능들과 도구들을 제공하는 u-health 서비스 플랫폼을 제안한다. 서비스 플랫폼의 주된 구성요소들은 u-health 온톨로지와 데이터 구조, 그리고 Business Process Management System (BPMS)에 기반 한 서비스 통합 프레임워크 등을 포함한다. 제안한 플랫폼은 u-health 서비스들을 개발하는 데 있어서 공통되는 특징들과 서비스들을 등록하고 재사용할 수 있도록 해준다. 제안된 플랫폼의 원형을 구현한 결과, 제안하는 플랫폼은 서비스의 유연성, 접근성, 진화성, 재사용성, 적응성, 상호운용성에 장점이 있으며 u-health서비스 개발을 위한 지침을 제공할 수 있음을 확인하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.129-131
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• 2017

최근 다양한 사물인터넷 장비들의 개발 및 도입이 확산됨에 따라, 도입된 장비들에 대한 관리의 중요성이 나날이 부각되고 있다. 현재 이러한 사물인터넷 환경을 구성하고 있는 다수의 장비들을 효과적으로 관리할 수 있는 다양한 관리장비들이 출시되어 있지만, 이 중 가장 범용적으로 사용되고 있는 장비는 스마트폰이다. 스마트폰은 언제 어디서나 사용할 수 있다는 장점이 있지만, 관리되는 장비의 특성에 따라 스마트폰으로 원격지에서 특정 장비를 관리하게 될 경우 보안 및 장비상태의 정확한 확인 등의 측면에서 많은 위험성을 내포하게 된다. 때문에, 본 논문에서는 스마트폰을 이용하되 특정 위치 또는 범위를 벗어나는 경우에는 사용자가 관리장비에 접근할 수 없도록 하여, 잠재적인 위험성을 미연에 방지할 수 있는 시스템을 제안한다. 이러한 문제점들을 해결하기 위해, 본 논문에서 제안하는 시스템은 안드로이드 디바이스에서 사용가능한 센서 기술들을 활용하여, 특정 지역 및 범위 내에서만 관리장비에 접근할 수 있도록 하는 솔루션을 내재하고 있으며, 이를 실제로 모바일 기반 승강기 보수작업용 컴퓨터의 인증 및 권한부여 시스템에 적용하여, 제안 시스템의 우수성을 검증하였다.

• Journal of Satellite, Information and Communications
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• v.8 no.4
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• pp.70-74
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• 2013

In recent days, the number of users having multiple devices according to time and places continue to increases with the help of wide spreading plurality of mobile devices. Consequently, the need for a user to share a media content on his/her multiple devices; furthermore, this movement brings the expansion of N-screen service focusing on connectivity, mobility, and integrity. N-screen service is platform that mediates the use of content or services on multiple devices with the continuous playing scheme. However, N-screen services have the problem of being provided exclusively by a service provider. This paper aims to implement a continuous playing scheme based on RESTfull and on an open service platform; the prototype was successfully implemented on the Android - PC environment.

• Journal of KIISE:Computing Practices and Letters
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• v.16 no.7
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• pp.814-818
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• 2010

Online social networking services help people to migrate social networks from offline to online. Twitter, which has achieved incredible growth, showed that an online social networking service without offline bases can become large and successful. In this paper, we propose a twitter friend notification service using user‘s twitter messages and place recognizing technology. When there is a friend in user‘s nearby place, the service notifies the information to the users. Through the friend notification service, a user can easily extend his online social network to offline.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.14 no.6
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• pp.183-188
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• 2014

With the rapid growth of the mobile computing and sensor technologies, various application techniques related to USN converged with other related technologies are actively disseminated recently. Most of these applications are aimed at the proper control and system monitoring using context information gathered through various sensors. But it is not easy to control and monitor the system precisely and flexibly since data generated by sensors are huge and variety. In this paper, we design and implement the fuzzy-logic based central control system in USN to provide the flexibility and preciseness with sensed data. The performance of the proposed system is evaluated by a simulation study in terms of consumed electric power on the test bed of USN based streetlight control system.