SAP HCI is intended as Integration System-as-a-Company (PAAS) which really helps to combine various unbiased devices/purposes for a company course of action. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid model. HCI provides Adapters (Connectivity choices) like: Cleaning soap Adapter, IDoc, HTTP, Mail, SFTP,Ariba, https://andyncprl.blogdon.net/hana-cloud-integration-44312825