Migrating applications developed in BW 3.1/SEM 3.5 to BW-BPS and SEM 4.0

We have a BW 3.1/SEM3.5 System (Windows)and have developed BPS and CPM applications.

Also, we have a separate BW production server ( BW 3.0 B). We are upgrading this BW production server to 3.5 ( NW 04-SR1). (Windows).

We would like install SEM4.0 on top of the BW Production server.

We would like to migrate :

1. The CPM applications developed in BW 3.1/SEM 3.5 server to the upgraded BW 3.5/SEM 4.0 Server?.

2. The SEM-BPS applications developed in BW 3.1/SEM3.5 to the upgraded BW-BPS of BW3.5 Server?.

Pl provide some hints on how this could be achieved?.

Thanks in advance.

Regards

Yogesh