SAP HCI is developed as Integration Platform-as-a-Provider (PAAS) which really helps to combine multiple independent techniques/apps for a company system. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid product. HCI provides Adapters (Connectivity alternatives) for instance: Cleaning soap Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://andyj802vxa2.wikiinside.com/user