To construct a wholescale police work system is required by the new social order situation after China s entry into WTO,and a fundamental way of solving the separation of Chinese police work system and a tendency to strengthen unified command in the world modern police work.

Design and Implementation of Proxy Server on Mobile Police-service System;

Object-oriented analysis of comprehensive system of police affairs;

The Research and Implementation of Police Mobile System Based on Component;

Through analyzing the extensible service demand,this article proposed an extensible design scheme of police mobile system based on component,using the thought of Component-Based Software Development,so called CBSD.

In view of the small and medium enterprises financial situation, based on the cost-benefit and financial prewarning principle, this paper put forward how to construct the small and medium enterprises financial prewarning system based on cash flow, and several key points should be paid attention to in constructing SMEs’ financial prewarning system.