The main topic “Net-distributed Computing and Co-operation in Civil and Building Engineering” and the associated research achievement and evolution trends of CSCW(Computer Supported Collaborative Work)are introduced,and the development solutions of CSCW systems are presented by examples.

Integrating the concepts and theories of CSCW with the idea of distributed processing, a three-hierarchized structure is established and concurrency control and SVG are discussed in detail.

First,the concept of CSCW applied in the system is introduced.

Study on the Software Technology of Computer Supported Cooperative Work(CSCW);

Research and Analysis of the Development of CSCW;

Based on the analysis of group communication characteristic,a novel approach to the development of communication software that satisfies the require- ments imposed by computer-supported cooperative work(CSCW)multimedia applications is proposed,and dependencies for dif- ferent protocol stacks ar.

For solving the synergetic load forecasting problem between superior and subordinate network in the process of city network planning, a B/S based city power network load forecasting management system was developed with the theoretical framework of the computer supported cooperative work(CSCW).