In order to recover the system,this paper discusses the method of how to make use of GHOST software in recovering computer system,according to the amount of microcomputer,recommends two kinds of method:a key GHOST and network spreading.

Due to the problems in the existing Workflow Management System during its procession of enterprise business affairs,we put forward a new method that combines the network cooperation technique and Workflow Management System,and its realization frame according to its combination way.

Efficiency computation of enterprises collaborative network with PH distribution;

Implement of the network synchronization in simulation of moving objects;

Aiming at the MF-TDMA/TDM based new-generation broadband communication satellite system in China,the overall network synchronization scheme is proposed,and the frame synchronization architecture and the signal flow are designed for uplink and downlink respectively,and some key issues are discussed in detail,including timing acquisition,quick resynchronization and timing control.

Based on this,discussing how to control network synchronization and the network transmission delay compensation method,and via the simulation and analysis system,a good effect is gotten.