SAP BI Installation help

Hi All,

We want to install SAP BI.

For this

1. where can I get installation Guides?

2. from where should I download its media?

3. what are its pre-requisites?

4. Which platforms it supports?

5. How much space needed for installation?

6. Is it Add-on type installation?

Please help us.

Thanks & Regards,

Ishan