A considerable distributed isomeric data and redundant data will accrue, while the software such as CAD,CAE,CAM,CAPP etc. are adopted in different operating system and hardware platform.

• 由于企业在采用、、、等软件时所用的操作系统和硬件平台的差异,因此不可避免地要产生大量的分布式异构CADCAECAMCAPP数据和冗余数据。