Hi Pallavi,
HCI DS is nothing but SAP Data Services (BODS) OnDemand.
BODS executable objects are called Jobs whereas BODS OnDemand executable objects are called as Tasks. BODS is installed on Premise and used for general purpose whereas BODS OnDemand is on Cloud and is mainly used for Sales and Operation Planning.
You can find more details below-
SAP HANA Cloud Integration for data services – SAP Help Portal Page
Regards,
Karthik