SAP HCI is developed as Integration System-as-a-Services (PAAS) which helps to integrate multiple impartial techniques/purposes for a business system. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid product. HCI provides Adapters (Connectivity options) for instance: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oDa