SAP HCI is developed as Integration System-as-a-Provider (PAAS) which helps to combine several unbiased methods/apps for a company procedure. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid design. HCI features Adapters (Connectivity alternatives) which include: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData.