SAP HCI is designed as Integration Platform-as-a-Assistance (PAAS) which really helps to combine a number of impartial techniques/programs for a business process. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid product. HCI delivers Adapters (Connectivity possibilities) for example: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, https://sap-analytics-cloud-s4-ha03681.blog4youth.com/28683588/hana-cloud-integration