SAP HCI is designed as Integration Platform-as-a-Provider (PAAS) which really helps to combine many unbiased units/purposes for a company system. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid design. HCI delivers Adapters (Connectivity solutions) which include: Cleaning soap Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://becketthsbjr.blogsumer.com/27825978/hana-cloud-integration