According to the statistics and analysis of the students sports injuries in Zhangjiakou Teachers College, the writer s find the more and more sports injuries mainly take place in extracurricular sports.

The data statistics and analysis work plays a very important role in the telecommunication network management filed,it provides very important reference for the network optimization and the construction,so it subjects strong impression on the network operation works.

The authors conduct a statistics and analysis on these conditions,such as the thesis published number,information density,time difference of publication,factors of influence,and co operative degree of thesis etc.

Aimed at the design of whirling tools with different shapes and parameters,this paper sets up a general design and analysis system.

System Analysis and Design for Engineering Operation Management of South-to-North Water Diversion Middle Route;

For solving some design problems in the object-oriented method,such as high coupling,low reusability and code scattering,the aspect-oriented system analysis and design method is proposed.

With the collaboration problem between business analysis, software development and database development, the object-oriented design flow of relation database, which is consisted of business modeling, system analysis and design, and mapping of model, is proposed from the unified modeling language (UML) system analysis.