• Journal of Korea Port Economic Association
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• v.29 no.2
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• pp.211-238
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• 2013

The Port Logistics Information System (Port-MIS) is the system that processes all of port management such as entry and departure of ships, using facilities within ports, port traffic control, cargo entering and carrying and tax collection in 31 trade ports over the whole country. Lately, The Port Logistics Information System (Port-MIS) has been reformed as a WEB-based system and established basis to provide real time information support structure, diversification of civil complaint system, and optimized civil complaint service by using wire and wireless internet. The typical study on the Port Logistics Information System was C/S program and EDI-centered. But it has significance to study on service quality measurement of WEB Port-MIS that has been served as a new web-based platform since April 2010, for there was no such a study until now.

• The KIPS Transactions:PartD
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• v.14D no.2
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• pp.249-264
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• 2007

As the need for telematics contents services due to the frequent traveling of people is increasing, it is necessary to provide various telematics contents by connecting and integrating current telematics contents which are collected and provided by each individual data provider. However, it is difficult to integrate or exchange the current telematics contents, because the data providers use different telematics contents models. Therefore, we propose a 'telematics contents gateway(TCG); system, which enables to integrate different telematics contents, so that the contents can be interoperable. The TCG can be a solution for several problems in the current telematics contents providing system. First of all, it has been impossible to search the contents without any information about data providers, because of the absence of metadata in the current systems. For this problem, TCG supports a search function based on a web-service technology. Second, TCG provides a common road network model for interoperability, and the model can be a solution to integrate different road network models into the common model. Moreover, integration algorithm for enhancing the correctness of integration will be proposed. In addition, it is designed by multi threads and multi queue structure. The TCG developed with C# on a windows system has been running and we verified that there was no information loss in the integration process. In addition, the speed of content integration and transfer satisfied the requirement of telematics services providers.

• The Journal of Korean Association of Computer Education
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• v.11 no.1
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• pp.57-64
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• 2008

This paper presents a web-based virtual educational system for Java language, which consists of a management system named Java Web Player (JWP) and creative multimedia contents for the lectures of Java language. The JWP is a Java application program free from security problems by the Java Web Start technologies that supports an integrated learning environment including three important learning procedures: Java concept learning process, programming practice process and assessment process. On-line voice presentation and its related texts together with moving images are synchronized for efficiently conveying creative contents to learners. Furthermore, a simple and useful compiler is included in the JWP for providing user-friendly language practice environment enabling such as coding, editing, executing, and debugging Java source files on the Web. Finally, simple multiple choices are given suddenly to the learners while they are studying through the JWP and the test results are displayed on the message box. In order to show the validity of the proposed virtual educational system we analysed and assessed the learners' academic performance on the five quizzes for one semester.

• The Journal of the Korea Contents Association
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• v.10 no.8
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• pp.32-37
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• 2010

We classify SNS into two categories and describe the merits and demerits of them. In order to combine the merits of each kind of SNS, we propose the social information sharing system for social network service using social content channel. It makes user share information faster and gather information more effectively. In this paper, we present AskMyFriend. It opens a channel aggregating users' interaction and recommends person who is most likely to know about topic of the question.

• Journal of the Korean Society for information Management
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• v.18 no.3
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• pp.115-138
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• 2001

The purpose of this study is to provide general principles to be used in designing university websites from the perspective of information architecture. Quantitative and qualitative evaluation criteria of web sites were developed based on information architecture principles. The students taking IA class were directly involved in constructing the evaluation criteria and they can be classified into four categories: 1) information organization; 2) navigation system; 3) labeling system; and searching system. These criteria were employed in evaluating twenty randomly selected university websites in Korea. General principles to be used in designing university websites were developed based on the findings of the study. They are composed of four major components in designing: 1) systematic information organization; 2) flexible navigation system; 3) consistent labeling system; and 4) efficient searching system.

• The KIPS Transactions:PartC
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• v.16C no.1
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• pp.125-132
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• 2009

The pre-generated web contents or various devices have to be used in order to execute UMA(UMA:Universal Multimedia Access). However, an HTLM web page for PC is not very compatible with wireless internet because of its unnecessary advertisements, high resolution, and various multimedia data. This is because the main focus when creating it was on high speed. In this paper indicates with the RSS channel, converted from the main part of the HTML web page, which users show interest in, a wireless compatible internet page can easily be created. Consequently, web administrators could create a wireless page easily and quickly, and wireless users would be able to find information in the same manner.

• Proceedings of the Korea Information Processing Society Conference
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• 2001.04b
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• pp.1149-1152
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• 2001

본 논문에서는 WAP을 지원하는 휴대폰을 가지고 무선 인터넷 서비스를 제공하는데 사용되는 WML 문서를 손쉽게 생성하고 유지, 관리할 수 있는 도구와 효과적인 WML 컨텐츠 사이트를 구축하기 위한 사이트 빌더의 설계와 구현에 대해 소개한다. 아울러 요즈음 웹사이트에서 많이 제공하는 웹 커뮤니티 구축 서비스와 유사한 포탈 서비스를 휴대폰을 통해서도 지원 가능하도록 해주는 WAP 기반 포탈 서비스 사이트 구축 도구에 대해 소개하는데, 먼저 WML 문서를 WYSIWYG 방식으로 저작해 주는 WML 전용의 WAP 사이트 빌더를 설계 및 구현하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2000.10b
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• pp.496-498
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• 2000

기존의 웹 기반 3차원 가상환경 분야에 대한 연구는 시각적인 면에서 이전의 웹 컨텐츠에 비해 많은 향상이 있었다. 그러나 내부 객체들간의 다양한 상호작용이나 참여자를 대신하는 아바타(Avatar)의 행위(Behavior)표현에 대해서는 많은 한계를 가지고 있다. 본 논문에서는 아바타를 포함한 가상 객체간의 상호작용과 행위의 유형을 정의하며 이를 지원할 수 있는 가상환경서버를 설계하고 구현한다. 또한, 다중사용자의 참여로 인해 발생할 수 있는 서버의 성능저하를 줄이기 위한 방법론으로서 지역관리 및 메시지 필터링 기법을 제안한다. 구현된 시스템은 가상 쇼핑몰 등의 응용분야에 실제 적용이 가능하다.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10a
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• pp.92-96
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• 2006

WBES(Web-Based Education System for Programming Language)는 웹을 기반으로 한 프로그래밍 학습 시스템이다. 학습자와 교수자가 시스템적 공간적 제약에 구애 받지 않도록 하여 학습자에게는 자율적이고 효율적인 학습이 가능하도록 하고 교수자에게는 과제제출이나 성적부여에 편의성을 극대화 한다는 장점이 있다. 본 논문에서 제안하는 WBES의 구현으로 가상학습시스템의 실습교육환경 미 구축 문제를 해결하여 이론교육과 그에 따른 실습이 병행되도록 한다. 또한 교수자 일인당 많은 학습자가 존재하는 현재의 교육환경에서 과제제출과 채점, 성적부여에서 학습자를 개인단위로 관리해야 하는 어려움을 별도의 과정이나 번거로움 없이 해결한다. 향후 본 시스템은 사이버대학, 방송대학, IT교육기관 등의 가상교육 학습시스템의 컨텐츠로 활용 가능할 뿐만 아니라 점차 확대되고 있는 공학인증시스템에 도입되어 발전가능하다.

• Journal of Internet Computing and Services
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• v.6 no.6
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• pp.139-148
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• 2005

The desired level for multimedia services in the mobile web environment, the next generation web environment, is expected to be of PC level quality. And great efforts have been made in the development of hadware technology, communication technology, various kinds of services and standardization to support these services, In the mobile web environment, multimedia contents adaptation services should be available through supporting various kinds of devices, network abilities and users' preferences. It means that due to the variety of both desired devices' hardware specifications, called destinations, and desired QoSes, the QoSes in the destinations are not fixed or defined. If a new user wants to stream multimedia contents in a server through a new kind of terminal device, it should be considered whether the existing transcoders are able to adapt the multimedia contents. However, the existing libraries for multimedia adaptation have heavy transcoder figures which include all adaptive functions in one library, The challenge of universal access is too complex to be solved with these all in one solutions. Therefore, in this paper we propose an application independent multimedia adaptation framework which meets the QoS of new and varied mobile devices. This framework is composed of a group of unit transcoders having only one transcoding function respectively, Instead of heavy transcoders. Also, It includes the transcoder manager supporting the dynamic connections of the unit transcoders in order to satisfy end to end QoS.