SMIGR_CREATE_DDL of ERP 6.0

Hello,

I am planning to execute one system copy of one system ERP6.0 (ECC 6.0) ABAP. The question is:

The program SMIGR_CREATE_DDL  apply to source system ECC 6.0 or only aplied when the source system is BW ?

Thanks a lot for your help,,

Winsor