SAP HCI is made as Integration Platform-as-a-Company (PAAS) which helps you to combine a number of independent devices/programs for a company procedure. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid product. HCI gives Adapters (Connectivity options) for instance: Cleaning soap Adapter, IDoc, HTTP, Mail, https://s4hanacloudsapnotes36802.blog4youth.com/28692880/hana-cloud-integration