SAP HCI is built as Integration System-as-a-Company (PAAS) which helps you to combine multiple independent systems/applications for a company process. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid design. HCI delivers Adapters (Connectivity selections) which include: Cleaning soap Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://sapanalyticsclouds4hana73726.blog-a-story.com/8193548/hana-cloud-integration