Abstract: Aiming at the contradiction between consistency, responsiveness and concurrency in concurrency control of Collaborative Virtual Environment(CVE), a client-based concurrency control mechanism is proposed in this paper. The consistency is guaranteed and improved through the state information of sharing objects which is preserved in client. Attribute-based concurrency control is introduced to promote the responsiveness of CVE system. Experiment shows that the consistency, responsiveness and concurrency of CVE system can be well balanced by the control mechanism.

Key words: Collaborative Virtual Environment(CVE), concurrency control, consistency, responsiveness, attribute

摘要： 针对协同虚拟环境(CVE)并发控制在一致性、响应性和并发性之间存在的矛盾，提出一种基于客户端的并发控制机制。该机制通过在客户端保存共享物体的状态信息，使系统的一致性得到提高，利用基于对象属性的并发控制思想，提高系统的响应性。实验表明，该并发控制机制能使CVE系统在一致性、响应性和并发性等方面达到较好的平衡。

关键词: 协同虚拟环境, 并发控制, 一致性, 响应性, 属性

CLC Number: 

• TP311