• Proceedings of the Korea Contents Association Conference
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• 2007.11a
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• pp.719-723
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• 2007

It is very active that existing companies of providing e-Learning contents try to differentiate themselves through a business model based on Web 2.0. For instance, Etoos, online education website (www.etoos.com) run by SK Communications has made more space where students can participate in the Web 2.0 era and overhauled its website completely, turning into an open-ended one, which strengthens learning and fun in 2007. This study is to analyze the present state of e-Learning contents with representative e-learning sites for middle and high school students, to find that the development direction for next generation e-Learning lies in developing contents focusing on learners that can get effective feedback and drawing collective intelligence grounded on the essence of Web 2.0, and to suggest 'the project to form virtual private tutor community in e-Learning contents.'

• Journal of The Korean Association of Information Education
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• v.14 no.1
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• pp.13-23
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• 2010

In recent creativity becomes a new request in the knowledge and information age. Robot programming education is an effective teaching method for improvement of creativity. Existing robot programming tools includes text-based or GUI-based development environment. Most of programming tools provide a simple tutorial system without interactive activity for beginners. In this paper, we propose an online robot programming education system based on web2.0, which embedded collaborative code creating tool, interactive tutorial chat and video conference tool to support collaborative code creating via web 2.0. Knowledge sharing tool allows users to share their collaborative source code. Besides, it makes users gained the experience and knowledge of program designing efficiently.

• Journal of the Korean Data and Information Science Society
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• v.19 no.3
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• pp.851-865
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• 2008

Recently, the Web 2.0 and RSS techniques have gained enormous attention in the Internet and e-Learning fields. In this paper, we design a RSS system on the Web 2,0 base for e-Learning, and implement the educational RSS information sharing system for back-to-basic curriculum of secondary schools that is called EduRSS. Our EduRSS can create web feed file with RSS format from learning blogs for back-to-basic curriculum, and share it with other users conveniently. In addition, it also provide the recommendation function to improve the reliability of the RSS feed resources.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2007.05a
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• pp.163-170
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• 2007

Web 2.0은 개방형과 사용자 중심형이라는 특징으로 우리에게 많은 가능성을 안겨주기도 하지만 UCC에서 나타나는 문제점들의 예를 보면 그 정도가 상당히 심각함을 알 수 있다. 이러한 문제점을 분석하고 해결하기 위해 본 연구에서는 Wiki 시스템을 이용한 사용자 주도형 커뮤니티에 관한 연구를 하였다. 우선 Wiki 시스템의 특징을 이용하여 커뮤니티를 운영하고 운영상의 문제점을 발견, 분석하여 Web 2.0의 긍정적인 문화가 정착될 수 있도록 해결방안을 제시하였다. 이는 사용자들이 만들어가는 Web2.0 시대를 더욱 가능성 높이 만들어 줄 것이다.

• Proceedings of the Korea Information Processing Society Conference
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• 2008.11a
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• pp.1111-1114
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• 2008

국내 병원들은 u-Hospital 서비스 구현을 위한 진료예약시스템을 구축, 운영하고 있고, 운영되고 있는 시스템의 대부분은 웹 기반의 방식을 사용하고 있다. 최근 등장하고 있는 Web 2.0 기술은 웹 방식에 있어서 편리한 UI 구조 제공, 빠른 응답서비스 등의 장점을 가지고 웹 영역의 많은 부분을 변화시켜 나가고 있다. 본 논문에서는 Web 2.0 기술을 적용하여 모바일 진료예약 시스템을 구축하였다. 이 시스템은 FLEX 기술을 기반으로 하여 구축되었고, 기존의 모바일 및 웹 기술에 비해 적은 페이지 뷰와 빠른 로딩속도로 인해 사용자의 편리성 및 응답속도를 개선하였다.

• Journal of the Korean Society for Library and Information Science
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• v.42 no.1
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• pp.213-231
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• 2008

In this study, we wanted to find out about the perceptions and the requirements of the academic information service users about the Library 2.0. This study used the survey research method, which utilized the web-based survey using the academic information service users as the target population. Specifically, we studied whether and how the users recognized and experienced the Web 2.0 technologies and its related services with respect to Library 2.0. In addition, we gathered the requirements for the Library 2.0 concept applied information services. The analysis results showed that the users were in need of obtaining the most up-to-date information and also using the professional information services such as the experts generated information contents and the Google Scholar type document reference information services instead of the Library 2.0 services based on the Web 2.0 technologies.

• Journal of the Korean Geographical Society
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• v.47 no.4
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• pp.592-605
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• 2012

This article reviewed issues in Korean geographical journals: web GIS and National GIS. Web GIS in Korea is now evolving to mobile GIS, which requires portable hardware, wireless Internet, and GPS receiver. The new trend of mobile GIS is using a smart phone. Recently, a variety of studies for the mobile App and mobile Web in Korea has been developed. With explosive information on the Web 2.0, the Korean government has built the Human-Oriented Geographic Information System (HOGIS) in which Ontology was implemented for semantic query on the Web. On the government side, Korean government has produced various nationwide data through 4-phase NGIS project. Current NGIS ($4^{th}$ phase: 2011-2015) moves toward a Korean Green Geospatial Society using geospatial information as a new growth engine for the future.

• Journal of the Korean Association of Geographic Information Studies
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• v.19 no.3
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• pp.16-28
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• 2016

Advancing geo-spatial web technologies and their applications require compatible and interoperable heterogeneous browsers and platforms. Reduction of common or supporting components for web-based system development is also necessary. If properly understood and applied, OGC-based standards can be utilized as effective solutions for these problems. Thus, OGC standards are central to the design and development of web-based geo-spatial systems, and are particularly applicable to web services, which contain data processing modules. However, the application for OGC WPS 2.0 is at an early stage as compared with other OGC standards; thus, this study describes a test implementation of a web-based geo-spatial processing system with OGC WPS 2.0 focused on asynchronous processing functionality. While a binary thresholding algorithm was tested in this system, further experiments with other processing modules can be performed on requests for many types of processing from multiple users. The client system of the implemented product was based on open sources such as jQuery and OpenLayers, and server-side running on Spring framework also used various types of open sources such as ZOO project, and GeoServer. The results of geo-spatial image processing by this system implies further applicability and extensibility of OGC WPS 2.0 on user interfaces for practical applications.

• Journal of Communications and Networks
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• v.17 no.3
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• pp.296-305
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• 2015

Coupled schemes between service-oriented architecture (SOA) and Web 2.0 have recently been researched. Web-based content providers and telecommunications company (Telecom) based Internet protocol television (IPTV) providers have struggled against each other to accommodate more three-screen service subscribers. Since the advent of Web 2.0, more abundant reproduced content can be circulated. However, because according to increasing device's resolution and content formats IPTV providers transcode content in advance, network bandwidth, storage and operation costs for content management systems (CMSs) are wasted. In this paper, we present a user centric CMS for open IPTV, which integrates SOA and Web 2.0. Considering content popularity based on a Zipf-like distribution to solve these problems, we analyze the performance between the user centric CMS and the conventional Web syndication system for normalized costs. Based on the user centric CMS, we implement a social Web TV with device-aware function, which can aggregate, transcode, and deploy content over social networking service independently.

• Korean Journal of Remote Sensing
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• v.33 no.4
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• pp.391-400
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• 2017

Geo-based application services linked with the Open Geospatial Consortium (OGC) Web Processing Service (WPS) protocol have been regarded as an important standardized framework for of digital earth building in the web environments. The WPS protocol provides interface standards for analysis functionalities within geo-spatial processing in web-based service systems. Despite its significance, there is few performance tests of WPS applications. The main motivation in this study is to perform the comparative performance test on WPS standards. Test system, which was composed of WPS servers, WPS framework, data management module, geo-based data processing module and client-sided system, was implemented by fully open source stack. In this system, two kinds of geo-based image processing functions such as cloud detection and gradient magnitude computation were applied. The performance test of different server environments of non-WPS, synchronous WPS 1.0 and asynchronous WPS 2.0 was carried out using 100 threads and 400 threads corresponds client users on a web-based application service. As the result, at 100 threads, performance of three environments was within an adjacent range in the average response time to complete the processing of each thread. At 400 threads, the application case of WPS 2.0 showed the distinguished characteristics for higher performance in the response time than the small threads cases. It is thought that WPS 2.0 contributes to settlement of without performance problems such as time delay or thread accumulation.