Studies on Cooperative Information Systems

协同信息系统研究

基本信息

批准号：
10044154
负责人：
KAMBAYASHI Yahiko
金额：
$ 5.18万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B).
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

项目摘要

This research aims at realizing distributed cooperative work environments for integrating and utilizing various information resources distributed among networks. Themes of this research include pursuing cooperative interoperability of distributed heterogeneous multimedia information and modeling cooperative information systems by extending object-oriented model.In 1998, mechanisms for dynamic updating of environments are designed for a virtual office application system. Transaction in cooperative systemsare required more detailed control and flexibility than conventional transactions. A new method that realizes such tranactions has been developed. We also have exarnined trends in technologies related to data warehouse, made a submission about guidelines for the research community, developed a new method for view update that improves in efficiency of conventional solutions, and designed and implemented an action history view function on a cooperative hypermedia system.In 1999, the devel … More opment of a multimedia cooperative processing system that is a platform for development of application systems such as a distance education system and a virtual office system has proceeded, and feedback from users was obtained by experiments about usage. We also studied extension of interoperability in multimedia databases supporting personalization for each user and a model for multimedia information systems based on extension of view functions of object-oriented databases. The model was incorporated with the architecture of our cooperative hypermedia system. In addition to these, utilization of a data warehouse technology in cooperative systems and parallel processing for increasing efficiency and a guarantee of correctness in cooperative processing were studied.In 2000, we have integrated our research results about cooperative information systems, reorganized them as basic techniques for developing practical cooperative systems. First, a mechanism for management of transitions of working status in a cooperative hypermedia system was designed, implemented, and evaluated. It shows that the mechanism decreases a operating load of work managers and supports cooperative work that has complex working statuses. Secondly, we integrated action history view mechanisms into our education support system and used the system in practice. It became clear that the action history view mechanisms are useful in practical application such as education systems. We also studied methods for raising WWW cache hit-rate and proposed a new concept web-warehouse, which integrates WWW and data warehouse technologies and provides more advanced utilization of WWW data. Less

本研究旨在实现分布式协作工作环境，以集成和利用分布在网络中的各种信息。本研究的主题包括追求分布式异构多媒体信息的协作互操作性以及通过扩展面向对象模型来建模协作信息系统。1998年，动态机制。协作系统中的交易需要比传统交易更详细的控制和灵活性，我们还研究了与数据相关的技术的趋势。仓库，提交了一份关于研究界指南的意见，开发了一种新的视图更新方法，提高了传统解决方案的效率，并在协作超媒体系统上设计和实现了动作历史视图功能。1999年，开发了……更多选项多媒体协同处理系统是远程教育系统、虚拟办公系统等应用系统的开发平台，我们已经进行了开发，并通过使用实验获得了用户的反馈。我们还研究了支持多媒体数据库的互操作性的扩展。每个人的个性化用户和基于面向对象数据库的视图功能扩展的多媒体信息系统模型。除此之外，该模型还与我们的协作超媒体系统的体系结构相结合，并在协作系统和并行处理中利用了数据仓库技术。 2000年，我们整合了协同信息系统的研究成果，将其重新整理为开发实用协同系统的基本技术。一是工作状态转换管理机制。在合作超媒体系统中设计、实施和评估表明，该机制减轻了工作管理者的操作负担，支持复杂工作状态的协作工作。其次，我们将行动历史视图机制融入到我们的教育支持系统中，并在实践中使用。显然，动作历史查看机制在教育系统等实际应用中是有用的。我们还研究了提高WWW缓存命中率的方法，并提出了一种新概念Web仓库，它集成了WWW和数据仓库技术，并提供了更高级的利用。万维网数据较少。