SAP HCI is built as Integration Platform-as-a-Assistance (PAAS) which helps you to integrate several independent methods/applications for a company course of action. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid model. HCI offers Adapters (Connectivity choices) such as: Cleaning soap Adapter, IDoc, HTTP, Mail, https://s4-hana-cloud-tutorial47024.ivasdesign.com/50246448/hana-cloud-integration