Upgrade to BI 7.0

Hi Experts,

Can anyone pls provide me detailed steps as to howto upgrade from BW 3.X to BI 7.0.

Can you also detail on whether we can get all the data and objects in the lower version to BI 7.0 version.

Pls provide detailed answer.

Urgent, Got to do an upgrade project.

Thanks,

Aravind