基于Java共享数据开发包的电子白板设计  

Design of Java sharing development kit electric whiteboard

作　　者：施维颖[1] 安毅生[1] 孙宏琦[1] 

机构地区：[1]长安大学信息工程学院,陕西西安710064

出　　处：《长安大学学报（自然科学版）》2004年第5期119-122,共4页Journal of Chang’an University(Natural Science Edition)

摘　　要：基于分布式网络的同步协作计算系统为用户提供了一种无约束的、同步感知模型,电子白板系统作为该模型的具体应用,为分散的协作成员提供了一种高度结构化的对象空间中全新的交互模式。设计并实现了该电子白板系统,并就实现过程中的一些关键技术,如操作一致性和用户感知问题展开讨论,提出了一种基于令牌的操作权控制策略及分段同步控制策略,解决用户间视图的不一致问题。实际应用表明对这两个策略的使用,能够在不增加响应时间的前提下使该问题得到较好的解决,并且完全可以满足同步协作系统的需求。Synchronous collaboration via a network of distributed computers provides users a relaxed, concurrency awareness model. Whiteboard system as an important application of this model provides a novel interactive mode in highly structured object spaces. A electric whiteboard tool was designed in the collaborative computing environment and its key techniques such as consistency and awareness were discussed in the process of development, a new token based and synchronization in subsection control strategy were proposed. The practical result shows that these two strategies can solve inconsistency between users' view effectually under the precondition of not increasing response time and satisfy the requirement of synchronized collaboration absolutely.

关 键 词：电子白板 协作计算 操作一致性 感知 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]