VMware Identity Manager provides the Workspace ONE portal as shown in the previous section, allowing users single-sign on (SSO) access to SaaS (Software-as-a-Service) applications, RDSH hosted Windows applications and desktop sessions, Horizon virtual desktops, ThinApp and Citrix applications. Identity Manager is available as a VMware hosted SaaS offering (VMware vCloud Air™) or as an on-premises deployment of which this document is based on.