• Title/Summary/Keyword: web-based collaborative system

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A Design of the Active Web Server Supporting Synchronous Collaboration in the Web-Based Group Collaboration Systems (웹 기반 그룹 협동 시스템에서 동기화된 협동을 지원하기 위한 능동형 웹 서버 설계)

  • 허순영;배경일
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 1999.03a
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    • pp.95-102
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    • 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.

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A System for Collaboration in Distributed Enterprises

  • Lee, Eon-Gyeong;Sungdo Ha
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1996.11a
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    • pp.509-513
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    • 1996
  • The information technology of computers and computer tools have become so powerful that virtual enterprises are not just concepts any longer The virtual enterprises comprise distributed facilities and it is necessary to have a collaborative system among them. This paper proposes the modeling process of web-based collaborative system in the distributed manufacturing environment. It also presents the information infrastructure in order to communicate and to share the information more efficiently among the collaboration subsystem. The web-based collaborative system consists of four processes: 1) product design, 2) procurement of DB information, 3) query process, and 4) negotiation. The proposed web-based collaborative system will be implemented with network technologies.

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A Design of the Active Web Server Supporting Synchronous Collaboration in the Web-Based Group Collaboration Systems (웹 기반 그룹 협동 시스템에서 동기화된 협동을 지원하기 위한 능동형 웹 서버 설계)

  • 허순영;배경일
    • Proceedings of the Korea Database Society Conference
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    • 1999.06a
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    • pp.95-102
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    • 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.

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A Design of the Active Web Server Supporting Synchronous Collaboration in the Web-Based Groupware Systems (동기화된 협동을 지원하기 위한 능동형 웹 서버 설계)

  • 허순영;배경일
    • Journal of the Korean Operations Research and Management Science Society
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    • v.24 no.4
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    • pp.157-170
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    • 1999
  • The web-based groupware systems hold many possibilities for system developers and users. Especially, 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. However, current web technologies have limitations in supporting this, largely because the existing Hypertext Transfer Protocol(HTTP) is unidirectional and does not allow web servers to send messages to their web browsers without first receiving requests from them. This paper proposes an active web server that can overcome such limitations and facilitate synchronous collaboration in web-based group collaborative systems. To accomplish such goals, the active web server manages dependency relationships beween 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 usefulness 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(0DBMS) called OBJECTSTERE using the C++ programming language.

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A Personalized Recommender System, WebCF-PT: A Collaborative Filtering using Web Mining and Product Taxonomy (개인별 상품추천시스템, WebCF-PT: 웹마이닝과 상품계층도를 이용한 협업필터링)

  • Kim, Jae-Kyeong;Ahn, Do-Hyun;Cho, Yoon-Ho
    • Asia pacific journal of information systems
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    • v.15 no.1
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    • pp.63-79
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    • 2005
  • Recommender systems are a personalized information filtering technology to help customers find the products they would like to purchase. Collaborative filtering is known to be the most successful recommendation technology, but its widespread use has exposed some problems such as sparsity and scalability in the e-business environment. In this paper, we propose a recommendation system, WebCF-PT based on Web usage mining and product taxonomy to enhance the recommendation quality and the system performance of traditional CF-based recommender systems. Web usage mining populates the rating database by tracking customers' shopping behaviors on the Web, so leading to better quality recommendations. The product taxonomy is used to improve the performance of searching for nearest neighbors through dimensionality reduction of the rating database. A prototype recommendation system, WebCF-PT is developed and Internet shopping mall, EBIB(e-Business & Intelligence Business) is constructed to test the WebCF-PT system.

Design and Implementation of the Web Services Based Collaborative Production Management System (웹 서비스 기반의 협업적 생산관리 시스템의 설계 및 구축)

  • Lee, Myeong-Ho;Kim, Hyeoung-Seok;Kim, Nae-Heon
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.29 no.3
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    • pp.79-86
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    • 2006
  • Especially, MTO(Make-To-Order) companies take collaborative approaches with their partner companies to make low-price products and/or technologically low intensive products. The collaborative approach to manufacturing requires collaboration with partner companies for inventory review, production plan, and manufacturing to fulfill customer's orders. However, frequent changes of partnerships binder partner companies from sharing production information in effective ways since their information systems have different data architectures and platforms. Therefore, it is required flexible and standardized system integration approach fir effective information sharing. This research studies current status and problems of collaborative production system, proposes an architecture for collaborative production systems based on Web Services which is a standard information technology, and discusses expected effects and the vision of Web Services.

Development of Knowledge Process-based Product Development Engineering Collaboration System (II) : Process-based Application System (지식 프로세스 기반의 제품개발 엔지니어링 협업시스템 (II): 프로세스 기반 응용시스템)

  • Park J.H.;Kim S.J.;Park K.H.;Jang Y.H.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.599-600
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    • 2006
  • In order to promptly cope with the various requirements of consumers, the environment of product development is being globalized in manufacturing industrials. For this reason, it is necessary to build up an efficient collaborative system for communication between remote area designers. Specially, while Internet and information technologies were merged with the manufacturing or business process, the research for collaborative system has become an important issue. Therefore, we propose a Web-based Engineering Collaboration Framework using SPS(SharePoint Portal Server) which is an enterprise business solution that integrates information from various system into one solution through single sign-on and enterprise application integration capabilities, with flexible deployment options and management tool. Through a Web-based Engineering Collaboration Framework, designers can share knowledge assets and have a remote conference with others via web.

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A Study on the Factors Facilitating the Effectiveness of Web-based Collaborative Learning - Focused on Situation, Interaction, System- (e-Learning에서 협력학습과 학습효과에 영향을 주는 요인에 관한 연구 -상황요인, 상호작용요인, 제도요인을 중심으로 -)

  • Ko, Il-Sang;Ko, Yun-Jung
    • Journal of Information Technology Applications and Management
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    • v.13 no.4
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    • pp.197-214
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    • 2006
  • This study explores factors to facilitate web-based collaborative learning and the effect of learning, based on the PBL(Problem Based Learning) from the constructivist approach in e-learning. A research model, using the key variables such as situations, interactions, and systems, was developed. In order to test this proposed model, experimental design and post-survey was conducted to the learners who took on-line and off-line course with team project. In the research model, situation category was divided into instructor's support, unstructured problem, and self-directed learning. Interaction category was divided into three factors; 'interaction between learners', 'interaction between learner and instructor', and 'interaction between learner and technology'. System category was divided into.monitoring and incentives. As a result, it was found that collaborative learning can be improved by situations, interactions, and systems, and the effectiveness of learning can be improved by situations and interactions in PBL.

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A Web-based Synchronous Distance Learning System Supporting the Collaborative Browsing (공동 브라우징을 지원하는 웹 기반의 동기적 원격 학습 시스템)

  • 이성제;신근재;김엄준;김문석;성미영
    • Journal of Korea Multimedia Society
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    • v.4 no.5
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    • pp.430-438
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    • 2001
  • In this paper, we present the design and implementation of a web-based distance learning system supporting the collaborative browsing. Our system consists of an education affair management system, a video conferencing server/client, a white-board server/client, a session manager and a web browser sharing system. Among other things, our collaborative web browser is unique and not found in any other system. The web browser shows synchronously the same web pages as the lecturer moves through them. Therefore, it allows the student to feel real-time surfing gust as the lecturer would. The session manager supports multi-user and multi-group, and integrates various synchronous collaborative component into one distance learning system by providing the same session data and information of users in a session group. Our collaborative browsing system can increase the efficiency of distance learning and provides the effect of learning in the same classroom by supporting various synchronous functionalities, such as collaborative browsing.

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Design and Implement of Collaborative Learning System for Web Based Problem Based Learning (웹 기반 문제중심학습을 위한 협동학습 시스템의 설계 및 구현)

  • Yeo Sang-Han;Kho Dae-Ghon;Ahn Seong-Hun
    • The Journal of the Korea Contents Association
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    • v.4 no.4
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    • pp.53-63
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    • 2004
  • There have been a lot of studies on problem based instruction and collaborative learning environment, but there is a lack of the studies on a system that offers a collaborative learning environment for problem based instruction. Thus I developed and applied a collaborative instruction system for web based problem based instruction. The system was comprised of the collaborative instruction room and the problem based instruction room so that the students could solve the problems by groups through collaborative instruction. The developed system was applied to the actual learning. As a result, the system contributed to the students' improvement in academic achievements, drew a high degree of responses from them, and had positive effects on their affective domain.

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