• Proceedings of the KAIS Fall Conference
• /
• 2003.06a
• /
• pp.215-218
• /
• 2003

오늘날 인터넷의 광범위한 보급은 이제 유선을 넘어 무선 이동통신 기술로의 급발전을 가져오게되었고, 실생활에 있어서도 무선단말기를 통한 인터넷 상에서의 정보검색이 시간과 장소에 구애받지 않고 가능하게 되었다. 그러나 무선인터넷의 성장세는 무선 단말기가 가진 자체의 제한과 무선망의 제한으로 인해, 광범위한 보급과 활용만큼 성장이 급속화 되어지지는 못하다. 이러한 무선인터넷의 성장을 가로막는 요인들은 컨텐츠의 부족, 접속시간의 지연, 애플리케이션 미비, 무선인터넷 단말기의 보급지연, 완벽한 보완의 미흡등이다. 본 논문에서는 이러한 제한요인중에서 기존의 유선통신에서 사용되어지는 HTML로 구성된 웹페이지를 무선에서도 보다 효율적으로 이용할 수 있는 방법에 관해 제시함으로서 모바일 컨텐츠 개발의 생산성을 향상시키고 개발기간 및 비용을 단축할 수 있는 웹탐색 변환방법을 시도한다.

• Proceedings of the Korean Information Science Society Conference
• /
• 2004.10a
• /
• pp.490-492
• /
• 2004

웹 서비스는 최근 가장 주목받고 있는 기술 중 하나이다 오늘날 웹 서비스는 간단한 데이터 공유에서부터 대규모의 인터넷 판매 및 통화 교환. 애플리케이션 통합 시나리오의 범주까지 다양한 분야에서 전개되고 있다 또한 웹 서비스는 모바일, 디바이스, 그리드 시나리오 등에도 적용되고 있다. 현재 웹서비스는 이기종간에 구축된 서비스를 통합하고 호환시키는데 많은 중점을 두고 있다. 설기서 반드시 필요한 부분이 이기종 간의 인증 부분이다 서로 다른 시스템에 접근하기 위해서 사용자는 여러 번의 인증절차를 거쳐야 한다. 본고에서는 사용자의 인증절차를 통합하고, 접근 권한에 대한 제어를 위해 WS-Security의 표준안에 포함된 보안 토큰을 이용한 통합 인증 모델을 제시하고자 한다.

• Annual Conference of KIPS
• /
• 2012.11a
• /
• pp.424-426
• /
• 2012

REST 웹 서비스는 HTTP 프로토콜을 통해 손쉽게 적용 및 배포할 수 있다. 최근 다양한 정보시스템의 데이터베이스가 REST Open API 웹서비스를 통하여 배포되고 있으며, 이는 스마트폰 애플리케이션, 웹(Web) 등의 다양한 분야에서 활용되고 있다. 본 연구는 오픈 API 에 대한 시스템의 성능의 포인트에 서비스 평가를 제공하는 것이다. 본 연구는 REST 오픈 API 의 수행 성능 평가를 통하여 REST 오픈 API 웹 서비스의 확장성에 초점을 둔다. 이를 위해 REST 오픈 API 가 미래에 모바일 클라우드 플랫폼으로써 충분한 성능 및 활용될 수 있는지 검증할 필요가 있다. 본 논문은 큐잉 네트워크(Queueing Network)을 활용하여 REST Open API 웹서비스 서버 시스템을 모델링하고 성능을 분석하였다.

• Journal of the Korea Society of Computer and Information
• /
• v.19 no.3
• /
• pp.101-108
• /
• 2014

Many businesses, government offices, educational institutions, according to the characteristics of each business and information system is used. However, prevalence of smart phones and a wide range of mobile devices with services, which requires users with mobility, according to the latest mobile services and in many places, and is under development. Interworking between existing systems and mobile systems to be set aside for the development cost and time, a waste of human resources is getting worse. Also, in many places to provide mobile services to existing systems need to fix the problem is coming. In this paper, to solve the problem of interworking between existing systems and mobile systems for the data transfer and processing of existing server, web services server, and mobile systems has been developed between the library.

• Science of Emotion and Sensibility
• /
• v.18 no.4
• /
• pp.59-74
• /
• 2015

When product or service provides unexpectedness the user would be satisfied, and lately some mobile applications and web services provide those unexpectedness. However, unexpectedness itself can make negative effects such as decrease of the ease of use, still studies about mobile application are focused on satisfaction from the usability. Therefore, we would study experimentally user experience changes caused by unexpectedness using serendipity in mobile application UX, and observe how those changes to affect to user satisfaction. In other words, we observed the relationship between factors such as the unexpectedness caused by interactions of mobile application, the serendipity provided game, perceived newness, perceived ease of use, perceived usability, and satisfaction. As a result, the serendipity has positive effect to the perceived newness and negative effect to the perceived ease of use, and perceived newness and perceived ease of use affect to perceived usability positively, and all three factors are have positive effects to the use satisfaction.

• Annual Conference of KIPS
• /
• 2004.11a
• /
• pp.571-574
• /
• 2004

디지털화 된 멀티미디어 데이터가 증가함에 따라 데이터의 효과적인 분류 및 검색 작업이 더욱 중요해 지고 있으며, 네트워크와 하드웨어의 발전으로 영상 정보를 검색함에 있어 기존의 웹상의 클라이언트/서버 기반 검색만으로는 부족하게 되었다. 이에 따라 영상 정보를 웹상에서 뿐만 아니라 모바일 같은 이기종간의 검색이 필요하다. 그러나 이기종 간의 플랫폼에서 동일한 정보를 얻기 위해서는 상호운용성에 문제가 있다. 웹 서비스(Web Service)는 분산 애플리케이션에 대한 언어-중립적(language-neutral)과 벤더-중립적(vendor-neutral)[5]을 제시하고 있어 기존의 서로 다른 플랫폼간의 정보 이전 문제를 해결할 수 있다. 따라서 본 논문에서는 영화 컨텐츠 검색 시스템을 웹 서비스화 하였다.

• The Journal of the Korea Contents Association
• /
• v.11 no.9
• /
• pp.85-95
• /
• 2011

Recently, sudden interests of mobile cloud computing as well as conventional internet environment are rapidly increased as cloud computing spread out in our web society. Mobile devices including smart phone are rapidly changing in a wholesale way that covers hardwares, applications, and services. However, the Internet access using mobile device is not quite smooth in this local mobile internet environment which suffers from lack of understanding and observance of Web Standards. Although most of domestic web sites are developed focusing on various functions and eye-catching designs, this should became one of the main factors that make the usability and accessability decrease when accessing web with smart phones or table PCs. Therefore, this paper suggested a web interface that considered usability and accessability under mobile cloud environment and we tried to prove it via usability test. It could be found that there was an improvement of usability of interface of the main page that has been optimized to the mobile device environment suggested from the previous research we present, but this paper aimed to prove a usability improvement of total website as a whole by performing the usability test on the entire website. Selecting a special website optimized for mobile cloud computing, we prove an improvement of usability and accessibility. Therefore, we offer a guideline about user interface design applications to developers or companies who want to construct mobile website.

• Journal of rehabilitation welfare engineering & assistive technology
• /
• v.9 no.3
• /
• pp.195-201
• /
• 2015

In this study, IT education contents have been developed based on the u-Learning approach for people with hearing impairment, focusing on allowing the user to learn from anywhere and anytime. Specifically, this study applies HTML5 to implementing IT education contents(JSP, Oracle) for the deaf because HTML5 enables the learner to access the contents through both web and mobile device on various platforms including android, Mac OS, and PC etc. The results of this study are as follows: First, the online computer courses are mostly supposed to be compatible with diverse types of mobile devices. However, some of the contents could not be run on applications residing in web and mobile devices because the contents tend to be developed using FLASH. HTML5 is the effective way to overcome the compatibility problem. Second, FLASH and HTML5 contents authoring tools have been compared in terms of their strong and weak points by applying the developed contents to those tools. The study also suggests that the future work would be needed in order to implement wide variety of event functions with HTML5. Lastly, design strategies enabling access through web and mobile devices have been analyzed in accordance with u-Learning design guidelines for the deaf and mobile application accessibility guidelines. However, in the latter case, the future work regarding design guidelines needs to be conducted to improve the educational accessibility depending on the level of impairment.

• Journal of Software Engineering Society
• /
• v.24 no.1
• /
• pp.1-7
• /
• 2011

MVC(Model-View-Controller) architecture is well-known for high maintainability and it makes efficient development possible. Recently, it has been applied in many fields such as web, desktop and mobile applications. Therefore, effective testing for this architecture is strongly needed. Although much research has been done, there was not much efforts for exploiting MVC architecture in GUI testing. Therefore, in this paper, we propose a scheme for efficient and accurate GUI testing for MVC based applications. In this study we separate original state diagrams into view state diagram and model-controller state diagram. Then, we present a case study showing the effectiveness of our proposed scheme.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.10 no.2
• /
• pp.53-59
• /
• 2010

Android that was made by Google and Open Handset Alliance is the open source software toolkit for mobile phone. In a few years, Android will be used by millions of Android mobile phones and other mobile devices, and become the main platform of application developers. In this paper, we develop an application contents Booky based on Google Android flatform by using Webview merits and Google search engine. The features of the developed content are as follows. First, a mobile-based Web browser which has an advanced screen resolution and can support more faster viewer than normal web browser as it reduces the amount of data transmission. Second, efficient E-book search and reading functionality. In the performance evaluation, we show the results of simulation using AVD(Android Virture Device).