By analyzing the model,it shows that the available QoS(quality of service) and service with high reliability are related to the number of concurrent multimedia servers N and the number of service instances n provided by a multimedia server in the system.

• 通过对模型的分析表明:系统的服务质量(QoS)和高可靠性与系统中并发的数据服务器数目N、单个数据服务器提供的媒体数据服务实例数n相关,通过正确调整N与n之间的比率,系统可以获得较高的QoS;