DaaS is a form of Virtual Desktop Infrastructure (VDI), hosted in the cloud. With VDI, an organization deploys virtual desktops from its own on-premises data centers. In-house IT teams are responsible for deploying the virtual desktops as well as purchasing, managing, and upgrading the infrastructure.
DaaS is essentially the same thing but the infrastructure is cloud-based. Organizations that subscribe to a DaaS solution don’t need to manage their own hardware.