【作者】 武伟；

【导师】 陆建德；

【作者基本信息】 苏州大学 ， 计算机应用技术， 2005， 硕士

【摘要】 计算机支持的协同工作(CSCW)是一个多学科支持的新兴研究领域。应用共享技术是CSCW系统中支持同步协作的关键技术之一。近年来,以JXTA平台为代表的新型P2P对等网络的出现,对CSCW的发展提出了新的研究课题。 本论文的具体研究和实现工作包括以下几方面: 分析已有CSCW的应用共享实现机制并比较它们各自的特点、优势与存在的问题,确定在JXTA新环境下应用共享的优势和研究目标。 设计和实现了新的基于JXTA平台的应用共享系统——JBCAS,进行了体系结构和功能实现方案的设计。 对JBCAS系统中的通信服务、协同工作组管理等模块进行了设计和实现,并重点对动作控制、一致性保持和连续性维护等模块进行了研究和实现。 对原有Java图形开发包进行了CSCW扩展,设计了一套完整的动作事件处理流程。 研究并解决了新节点动态加入应用共享的难题,支持节点的动态会话状态保存。 测试JBCAS原型系统,对其可行性和正确性进行了验证。 本课题的研究,使CSCW的应用共享技术在P2P网络模式下有了新的解决方案,并在JXTA环境下使应用共享拥有更强的一致性、连续性和可靠性。更多还原

【Abstract】 Computer Supported Cooperative Work (CSCW) is a new emerging research field with multidisciplinary support. Application sharing is one of the key techniques that support synchronous cooperation in CSCW systems. In recent years, the appearance of newly P2P (Peer-To-Peer) network represented by JXTA Platform arouses the new research subjects for CSCW’s development.This paper covers following parts of research and implementation as: Analysis of several existing mechanisms of typical CSCW application sharing and comparison of respective characteristics, advantages and problems, which determines advantages and research goals of JXTA-based application sharing. Design and implementation of a new JXTA-based CSCW application sharing system—JBCAS, along with the design of the architecture and solution of the functions. Design and implementation of communication service module and cooperative working group management module, with a focus on the research and implementation of event control, maintenance of system consistency and continuity. CSCW extensions to the original Java Graphics Develop Toolkit and design of a complete procedure of event processing. Research and solution to the problem of new peer dynamic joining and support of the peer dynamic session status saving. Test of the prototype system and the validation of JBCAS’s feasibility and correctness.The research of the project has introduced the new solution of application sharing of CSCW in P2P environment, and provides the application sharing with better consistency, continuity and robustness under JXTA.更多还原