Hi Sathish,
Understand the concept,
- RFC Program ID will connect BODS and BW and this will be available whole DS.
- Datastore for BW will be created under particular repository and available only on particular repository
A central repository is an optional component that can be used to support multi-user development.
The central repository provides a shared object library allowing developers to check objects in and
out of their local repositories. i guess, it may be helpful for you.