Service Networking, storage, physical servers and virtualization are provided as a service. You manage the middlewares, runtime, applications and data. PaaS Platform as a Service Networking, storage, virtualization, security, runtime, middlewares are provided as a service. You manage your applications and data. On-prem On-premises Nothing is managed on behalf of you. You manage the networking, storage, servers, virtualization, middlewares, runtime, your applications and data.