Based on characteristics of designing mechanical products, we make comparisons among CGI,JSP,ASP in process of generating dynamic pages, resource consumption,response efficiency,etc.We emphasized the superiorities of JSP in developing collaborative system.Furthermore,by analyzing the actualization of collaborative system,we raised the problem of overfocus on response efficiency.Especially,methods to such problems are enumerated in the main context.Then,we discuss the trends of collaborative system.Finally,based on a cycloid pump designing system,a collaborative system is built by using JSP,Servlet.Finally,the potential utilization of this Collaborative System on parametric designs in distinguishing areas is described in the end.

Microactuator is a kernel part of MEMS.The research and development of microactuators in recent years are reviewed.The actuating principles,actuating modes,application,and their advantages and disadvantages are outlined in order to optimize the design of actuators.Some individual opinions are put forward on the thermal actuators.