SAP HCI is designed as Integration Platform-as-a-Services (PAAS) which helps you to combine several impartial systems/programs for a business system. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid model. HCI delivers Adapters (Connectivity options) including: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. So