SAP BTP is a platform-as-a-service (PaaS) with the platform services hosted from four environments:
A way to extend on-prem SAP systems, using the latest technology – but sticking to a familiar programming language and decoupling extension code.
An open-source, industry standard for multi-cloud environments which can be hosted on AWS, Microsoft Azure, Google Cloud Platform, Alibaba Cloud, and OpenStack.
A cloud-native platform for extending monolithic applications with serverless functions and microservices, which provides a properly configured, monitored, and secured Kubernetes cluster.
Neo (NetWeaver On-Demand)
Based on a SAP propriety runtime environment that runs only in SAP operated Data Centers, supporting Java, SAP HANA XS and HTML5 applications.