For VDI, Microsoft's licensing model is VDI Standard and Premium Suites. These're great offerings & simplify the process to acquire Microsoft VDI. And for many customers, this's a cost-effective solution, IT decision makers must examine & compare Microsoft offerings with others in the market. VDI Suite includes not only basic infrastructure needs, but critical management components to ensure a successful VDI deployment. So customers can, for instance, employ System Center Virtual Machine Manager and take advantages of the many integrations among System Center family, Windows Server 2008 R2, and Windows 7. For a more comprehensive offering, VDI Premium Suite includes additional desktop & app deployment options.
Still many may have fundamental question, why a new licensing model is necessary for VDI? To better understand it, the following chart details a number of VDA (Virtual Desktop Access) scenarios and we should also further look into how software was deployed yesterday and how software can be deployed today & beyond.