• 한국멀티미디어학회논문지
• /
• 제6권4호
• /
• pp.630-637
• /
• 2003

This study is designed to use the stepwise learning system for solving learner-oriented problem on the Web, which can help learners probe studying targets and contents of mathematics as well as search for a study-related materials. The study provides a Web-based Courseware design model based on the general multimedia systematic professor design model. It develops a program for remote lecture that can solve problems through interaction among a professor and the other learners. It also implements a remote teaming system for real-time environment of mathematical problems oriented by the learner. The system designed either as a Web-based mathematical Courseware or as a text mode has the purpose of providing a Web-based stepwise learning system for solving mathematical problems oriented by the learner.

• 한국정보시스템학회지:정보시스템연구
• /
• 제10권1호
• /
• pp.127-146
• /
• 2001

The area of business applications in the internet are extended enormously in result of fast development of computing and communication technologies, increase of internet use, and use of intranet/extranet in enterprise information system. Widely spread the use of the internet, there are various applications for Business to Business (B to B) or Business to Customer(B to C) model that are based on the intranet or extranet. This paper designed and implemented the Web-based Electronic Bidding System for Business to Business (B to B) model. The technical issues of electronic bidding system in the internet are involved in the connection between web client and server, electronic data interchange for the contract document, and security solution during the bidding and contracting processes. The web-based electronic bidding system in this paper is implemented using Java applet and servlet as a connection interface for web client and server, XML/EDI-based documents for a bid and a contract, and bidding server and notary server for enhancing the security using PKI(Public Key Infrastructure)-based public key cryptography, digital signature and Certification Authority(CA).

• 정보처리학회논문지D
• /
• 제11D권1호
• /
• pp.1-10
• /
• 2004

인터넷과 무선 이동통신 기술이 발달함에 따라, 모바일 데이터베이스와 무선 웹 서비스 기술은 중요한 연구 이슈로 부각되어 왔다. 이러한 환경의 변화로 임베디드 시스템과 웹 서비스를 위한 새로운 GIS 데이터베이스 시스템 개발이 필요하다. 이 논문에서는 웹 기반 GIS 시스템에서 사용할 수 있는 자바기반 웹 데이터베이스 시스템을 제안하였다. 제안된 시스템은 자바기반 응용 프로그램 서버와 이동 컴퓨팅 장치에 쉽게 디스플레이하기 위해 자바 언어를 사용하여 구현하였고, 웹 데이터 호환성 보장을 위해 OGIS를 사용하여 구현되었다. 또한 스키마 관리자를 포함하는 공간 질의 처리기와 공간 객체 저장 모듈을 개발하여 사용자의 웹 상에서의 공간 질의를 효율적으로 처리할 수 있게 하였다.

• International Journal of Precision Engineering and Manufacturing
• /
• 제4권6호
• /
• pp.50-60
• /
• 2003

A web-based dynamic simulation system, called O-DYN, for multibody systems is developed. All the interfaces of the system are accessible via web browsers, such as Netscape or Explorer. The system uses a block-diagram type O-DYN/Modeler developed in JAVA Applet as a preprocessor. The O-DYN postprocessor composed of O-DYN/Plotter and O-DYN/Animator is developed in JAVA Applet. The O-DYN/Solver for predicting the dynamic behavior is run on the web server. Anyone who wants to simulate the dynamics of multibody systems or share results data can access the analysis system over the internet regardless of their OS, platform, or location.

• 환경영향평가
• /
• 제8권4호
• /
• pp.47-57
• /
• 1999

본 연구는 G7 과제의 일환으로서, Internet상에서 운영될 수 있는 광역적 환경 관리 시스템의 개발에 목표를 두었다. 이러한 목적을 달성하기 위해서는 아직 더 많은 연구가 수행되어야 하지만, 예비적인 개발 성과를 다음과 같이 요약할 수 있다 : 1) 통합적 환경 정보 관리 시스템, 2) web 기반의 제어 엔진, 3) 지표수환경 관리 시스템, 4) 지하수환경 관리 시스템, 5) 하수도 및 시설 관리 시스템. 본 엔진의 핵심 방법론은 다양한 편미분 방정식의 해석에 있어서 각 미분항을 서술하는 범용적 다차원 유한요소 행렬이다. GUI 지향적인 web 기반의 시스템을 구축하기 위해 공간 정보 관리 시스템(ArcView) 및 Visual Basic이 폭넓게 사용되었다. 개발된 시스템들은 환경 문제의 복합적인 관리의 필요성으로 인해 매우 집약적인 프로그램으로 구성되었다. web 기반의 엔진은 환경관련 사업의 통합적인 관리를 위한 정책 결정 도구로 제공될 수 있을 것이다.

• 한국데이타베이스학회:학술대회논문집
• /
• 한국데이타베이스학회 1999년도 춘계공동학술대회: 지식경영과 지식공학
• /
• pp.95-102
• /
• 1999

The web-based group collaborative systems are emerging as enterprise-wide information systems. Since data in group collaborative systems are apt to be shared among multiple concurrent users and modified simutaneously by them, the web-based group collaborative systems must support synchronous collaboration in order to provide users with synchronized and consistent views of shared data. This Paper proposes an active web server which can facilitate synchronous collaboration in web-based group collaborative systems. To accomplish such a goal, the active web server manages dependency relationships between shared data and web browsers referencing them and actively propagates changing details of the shared data to all web browsers referencing them. And, this paper examines usefullness and effectiveness of the active web server to apply it to the ball-bearing design example of concurrent engineering design systems. The prototype system of the active web server is developed on a commercial Object-oriented Database Management System (ODBMS) called OBJECTSTORE using the C＋＋ programming language.

• 한국산업정보학회논문지
• /
• 제14권5호
• /
• pp.103-111
• /
• 2009

본 논문에서는 CMS(Contents Management System)를 기반으로 한 교육시스템을 개발하였다. CMS 기반 교육시스템은 모든 작업이 웹 상에서 수행되어 관리자가 적용한 모든 내용은 실시간으로 사이트 이용자에게 적용될 수 있도록 하였으며, 사용자가 웹 사이트를 손쉽게 이용하고 관리할 수 있는 방법을 제공하였다. 또한, 웹 표준에 대한 내용을 부각시키고 이를 시스템에 접목시킴으로써 다양한 사용자층에 대한 배려를 시도하였으며, 이를 통해 더 많은 사용자들이 특정 환경에 구애받지 않고 보편적인 웹 서비스를 받아볼 수 있도록 하였다. 이를 위해 본 시스템은 웹 표준 가이드를 준수하여 W3C 표준을 준수하는 주요 플랫폼의 브라우저에서 호환될 수 있는 시스템을 개발하였다. 본 논문은 기존의 웹 기반 교육시스템이 가지고 있는 시스템적이고 구조적인 한계를 극복할 수 있는 가능성을 제시할 수 있을 것이라 생각한다.

• International Journal of Safety
• /
• 제8권1호
• /
• pp.10-13
• /
• 2009

In this study, a framework for web-based information system in VDN environment for safety and health monitoring in subway stations is suggested. Since physical variables that describing safety and health need to be closely monitored in multiple locations in subway stations, concept of distributed monitoring network using wireless media needs to be implemented. Connecting remote wireless sensor network and device (LonWorks) networks to the IP network based on the concept of VDN can provide a powerful, integrated and distributed monitoring performance, making a web-based information system possible.

• 한국IT서비스학회지
• /
• 제4권1호
• /
• pp.149-160
• /
• 2005

Information system outsourcing induces firms to concentrate on the core competence and to improve business value by utilizing specialized information systems outsourcing vendors. However, for those strategic effects, the outsourced information systems should guarantee a certain service level. Now companies are considering to adopt SLA(Service Level Agreement) as a method to check the service level of the outsourced information systems in quantitative terms. On the contrary, customer satisfaction survey supports qualitative analysis, and helps companies to understand the qualitative effects on information system more systematically. Recently, the growing use of the internet makes customer satisfaction survey to be carried out on the web. For that reason, lots of researches related to web survey have been performed. But these researches are just focused on finding out only items to be measured and the effect of web survey. In this paper, based on the service quality research model for information system outsourcing, we formalize and propose a web survey process, a system architecture, and a functional structure for information system outsourcing customer satisfaction survey. Additionally, we provide the implementation results for the web survey systems.

• 한국측량학회:학술대회논문집
• /
• 한국측량학회 2003년도 춘계학술발표회 논문집
• /
• pp.37-44
• /
• 2003

The aim of this research was performance of Web-based real time DGPS using MS visual basic 6.0 Active X control. This system supported the navigation of rover by transmitting the DGPS correction information of base station via internet and monitored the moving of rover by displaying the corrected results received from rover as well as permitting Web users monitoring for rover. The Web-based DGPS server and the client system using MS visual basic 6.0 Active X control for DGPS displayed on Web-browser with the pre analysis was constructed and the system loading test via Web-browser was performed after debugging this system through the static GPS test and publishing it on Web. Also, the wireless internet DGPS test on Web by changing the distance between a base station and a rover was carried out. As the result of the test, the real time DGPS could be performed by transmitting the correction message which calculated from the server system to the client system continually. The rover could be managed by displaying the location information which received from the client system. Other users also could monitor the rover by connecting with this system via internet in real time.