SAP HCI is intended as Integration Platform-as-a-Company (PAAS) which helps you to combine several unbiased techniques/purposes for a business course of action. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid model. HCI presents Adapters (Connectivity alternatives) which include: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, https://charliewrlfa.bloguerosa.com/27640811/hana-cloud-integration