同步协同设计中并发控制的研究

为解决协同设计过程中存在的数据一致性不高、数据传输量大、实时性差等问题,通过分析分布式CSCW环境中并发控制的各种方法,并根据同步协同设计特点和用户操作意愿,设计了并发控制网络模型.在该模型中,计算数据传输的最小延时确定主控站点,提出了基于事务优先权的混合并发控制策略,以保证协同用户在操作过程中的并发率.实例证明,以上措施的实现保证用户自由共享资源,提高了并发控制的实时性和数据的一致性.

Research on Concurrency Control for Synchronous Collaborative Design

To resolve problems such as low data consistency,large quantity transmission data and poor real-time in the collaborative design,the concurrent control methods in the distributional CSCW environment are analyzed.And according to the synchronous collaborative design feature and the user operation wish,the concurrency control model is designed.In the model,the data transmission's smallest time delay determines the master site.And a transaction priority mix concurrency control strategy is proposed.It is verified that the realization of the strategy not only ensures users share resource freely but also improves real-time concurrency control and data consistency through an application example.