Hi
My take is :
- the BI Platform installers have their own "DataAccess" components, which enable the middleware/connectivity you need to access HANA as a datasource.
- However, if you are installing HANA as a local CMS DB (on the same node as the BIPlatform), then yes you would need the HANA Clients on the same stack. See Admin Guide, section 11.1.2 (page 397) http://help.sap.com/businessobject/product_guides/sbo41/en/sbo41sp5_bip_admin_en.pdf
I hope hope this helps
Kind regards,
H