To deal with the problems occured in orthodox integration between CAD system and PDM system,a integrative solution based on Web Services was proposed.System structure found on Web Services,the intergrative interfaces between CAD and PDM was carried out by the way of publishing,banding and invoking the web methods.The CAD model was described using XML standard,and distributing a CAD process services over the PDM server to achieve the collaboration between two systems.In end,according to the proposed solution,the integration between Pro/E and automatic weapon PDM system which was made by ourselves had been developed successfully,which proved feasibility of the solution.

The change management is inevitable during the process of product development.This paper regards change management requirement as start,analyzing the key problem of change management at present,puts forward project change model and change process which are based on PDM.Then through the way of integrated workflow and lifecycle loose coupling,to solve the key problems of automation control in virtual enterprise's project change,and the key problems of correct evolvement and transfer in data changing etc..Finally,to give the detailed realization steps and examples.