Abstract
At present there are some problems in the management of the multi-vendor projects. They are mainly as follows: First it requires a great deal of time to share the methods of production and management. It is also easy to have misunderstandings in communication because the production procedures and the document names differ. Further, there is a gap in the interface between products and between products and applications. Finally, the performance of products varies widely, so it is difficult to maintain consistent quality. This paper considers the application of the improvement process based on the integrated project management of CMMI to the multi-vendor project.