SAP HCI is made as Integration Platform-as-a-Assistance (PAAS) which really helps to integrate a number of independent techniques/programs for a company process. HCI can perform 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. https://saps4hanacloud64173.get-blogging.com/28637845/hana-cloud-integration