1·Then we analyze three most popular multimedia synchronistic models and point out their advantages and disadvantages.
接着分析了当前最为流行的三种多媒体同步模型，指出了其优缺点。
2·Successfully implements the operation method to the asynchronies of the message queue and diminishes the default of POSIX message queue by synchronistic visiting only.
成功实现了对分布式消息队列异步的操作方式，消除了POSIX消息队列只能够进行同步访问的缺陷。