Hi Somanath,
Usually you have to do some transformation of BW data to bring it in line with BPC requirements. So, create BW cubes on BPC server that will be close to your BPC Models. Then use BW Transformation/DTP to load those cubes form BW.
After that you can use standard BPC DM Package to load from BW InfoProvider.
If you don't need any BW data transformations then you can create a BW VirtualProvider in BPC system and link it to your BW base cube.
Regards,
Gersh
