• Proceedings of the Korean Society of Computer Information Conference
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• 2016.01a
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• pp.337-340
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• 2016

본 논문은 유아 및 저학년 초등학생의 쓰기 학습을 위한 쓰기 학습용 애플리케이션을 설계하였다. 유아들은 어린 나이에 수동적인 글쓰기를 시작하고 전통적으로 사용된 '정사각형 글씨 교본'의 정형화된 연습으로 학습에 흥미를 잃는다. 쓰기 학습용 애플리케이션은 전통적 글씨 연습의 틀에서 벗어나, 게임 형태의 콘텐츠로 재미를 유지하도록 메인화면, 메뉴, 실행 화면 등의 내용을 기술하였고 설계하였다. 그리고 유아들은 수동적인 글쓰기로 인해 올바르지 못한 쓰기 자세를 형성한다. 이는 어린 아이들의 손에 무리가 가게 된다. 학생용 애플리케이션과 함께 설계한 홀더는 손에 힘이 없는 아이들이 쉽고 편안하게 필기구를 잡는 습관을 기르기 위한 것으로 지렛대 메커니즘을 응용하였다. 다양한 손의 크기에 대응하여 조절할 수 있도록 중지 받침대 조절 기능으로 다양한 연령대가 사용할 수 있다. 학습용 게임 애플리케이션의 재미와 홀더의 효과 등의 내용을 기술하였고 모바일에서 또 다른 아이들의 쓰기 방법을 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.05a
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• pp.12-14
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• 2022

최근 코로나 바이러스로 인한 팬데믹이 장기화 되었고 이는 개인의 정신건강에도 많은 악영향을 미치고 있다. 이에 따른 코로나 우울감 해소 방안으로 '감정일기 애플리케이션'을 제안하며 감정 분석을 위해 2차원 좌표계를 사용한다. 이 애플리케이션에서는 사용자가 입력한 좌표값의 평균으로 콘텐츠를 추천하는데, 평균 좌표값이 획일화되어 한 가지 범주에 고착되는 문제가 있다. 이를 해결하고자 본 논문에서는 콘텐츠 평가 변수 및 사용자 성향 변수를 이용하여 평균 좌표값에 변화를 주었다. 이를 통해 사용자에게 보다 적합한 콘텐츠 추천을 기대한다.

• The Journal of the Korea Contents Association
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• v.17 no.3
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• pp.274-284
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• 2017

Due to aging society, the prevalence of dementia is continually increasing and, thereby, causing a serious issue. Although Long Term Care Insurance is provided on a national level, it is not available for the elderly with dementia who do not satisfy the requirements. As the use of smartphones becomes widespread, this study investigated an application that can help disease management of the elderly with the early-stage (mild) dementia and communication among the family members based on analysis of the functions found in currently-available applications and survey among the relevant subjects. As a research method, based on review of the relevant theoretical studies, the service environment of applications available for the elderly with mild dementia was analyzed. Through this analysis, it found out that there is no application for the eldery with mild dementia. On the basis of the results, this study proposed a direction for design planning of an application included many functions like managements of taking medicine, physical activity, brain activity, information on dementia and notes. for dementia management aimed to help the patients with mild dementia manage the disease on their own. If this type of services are expanded in addition to the systemic support from the government, the data collected from these applications can contribute to improving management of mild dementia.

• The Journal of the Korea Contents Association
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• v.12 no.3
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• pp.352-362
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• 2012

Recently, the number of smartphone user is increasing fast, and many companies provide various mobile applications. However, not all applications remain at the smartphones, they could be deleted easily if users don't trust them. Therefore in this study, we try to develop the model of building trust to use the smartphone applications and examines the influences of ease of use, usefulness, enjoyment on user satisfaction and trust. For this study the 221 sets of data collected, who use the smartphones, were tested against the model using PLS 2.0. The results of this study are as follows. First, perceived ease of use had an effect on usefulness and enjoyment. Second, usefulness and enjoyment had an effect on user satisfaction and trust. We can derive the factors which affect building trust in smartphone applications through this study, and provide a guideline to mobile application vendors and providers.

• The Journal of the Korea Contents Association
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• v.16 no.2
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• pp.68-81
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• 2016

This study suggests, based on analysis of current status, improvement plans for the local government's public mobile applications. Fist of all, this study selected analysis elements and established an analysis framework for public mobile applications. Then the study analyzed the applications developed by all local government and application management practices in Seoul-City. The status of public applications shows that there are no institutional guidelines and the practical use of the public application is low in relation to the invested costs. Additional problems are the imprudent development, non-reflection of demand, absence of systemic management. For the improvement plans, the study suggests understanding of exact demand, detailed examination of validity, offering of effective information and the utilization of double-way interaction application. The management side of the improvement plans addresses the preparing for public application ordinance, building proper management system, regular check, education and active promotion.

• Convergence Security Journal
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• v.20 no.2
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• pp.85-90
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• 2020

The purpose of this study was to provide information necessary for development of the applications that could facilitate the prevention and management of obesity in children with intellectual disabilities and to present improvement measure for development of practical applications. Mobile applications for prevention and management of obesity for children with intellectual disabilities need to be configured to enable effective flow of information and services delivered between parents and children with disabilities through applications. This configuration is expected to allow effective obesity control to be derived through parental involvement in the process of motivation.. The composition of contents consists of three parts: nutrition, exercise(physical activity), and lifestyle. It is desirable for each content to be applied in a simple but easy-to-understand method, reflecting the characteristics of an intellectually disabled child. In addition, this study presented the user expansion and their continuous involvement through interface simplification, alert function, reward, voice recognition and subtitle support strategies in consideration of the characteristics of the children with intellectual disabilities.

• The Journal of the Korea Contents Association
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• v.10 no.3
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• pp.141-148
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• 2010

The aim of this paper is to propose a communication middleware which makes it possible to easily and efficiently develop the networking support for multi-user applications. Even though existing middleware and development tools provides lots of functionalities to realize distributed applications, they are purely low-level services passing the most development efforts to developers, or too specialized for a specific application. It brings a challenging issue of how the middleware supports general and efficient high-level mechanisms. To meet different networking and interaction requirements of multi-user applications, we propose various schemes to provide the communication architecture, the user membership management, the content transmission mechanism and the event management. Our middleware provides developers with application-level APIs and configuration files so that the different interaction requirements of a multi-user application can be easily handled in the developers' point of view.

• The Journal of the Korea Contents Association
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• v.19 no.3
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• pp.10-21
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• 2019

With the 4th industrial revolution, the traditional logistics is shifting to the smart logistics, and it has led to rapid growth of logistics startup companies to support smart logistics. They build their mobile applications and customize their services in the areas of freight transport, parcel delivery services, freight tracking, on-demand logistics, transport intermediary platforms, online-to-offline business, and last mile delivery. In order for logistics startup to be successful, it should lead to sales and profit through customer satisfaction and continuous use by developing highly usable mobile applications. The evaluation of usability of mobile application should use different evaluation criteria from Web based applications because of the inherent characteristics of mobile phone. The purpose of this study is to evaluate the usability of the mobile application provided by the logistics startup and to draw out implications and improvement plans. Through the literature review, we will review the concept of smart logistics. Thus we derive the usability criteria suitable for mobile applications and perform usability testing.

• Journal of Digital Contents Society
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• v.12 no.4
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• pp.575-583
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• 2011

Due to the development of mobile devices and communication technology, cell phones have radically evolved from portable phones into smartphones and provided variety of services to a society. This paper presents Multi-user Musical Instrument application for smart phones based on band instruments such as piano, guitar, bass guitar, and drum. This application makes music playing from smartphone to integrative music data stream using the synchronization function of server. In addition, user can play it of smartphone efficiently by implementing a graphic user interface similar to real musical instruments.

• The Journal of the Korea Contents Association
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• v.21 no.6
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• pp.12-18
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• 2021

A proportional share scheduler allocates CPU time to tasks and determines which task will be dispatched according to their priorities. In this paper, we investigate the correlation between the characteristics of applications and task priorities in the Linux Completely Fair Scheduler(CFS), which is one of the representative proportional share schedulers. We also propose a method of controlling the granularity of priority assignments according to the characteristics of applications. We implemented the proposed technique in a Linux system and confirmed the meaningful experimental results.