A presentation slide titled "What Actually Drives User Sizing" lists features such as User I/O Patterning, Application Provisioning, Full Provisioned vs. Thin Provisioned, Dedicated Desktops vs. Shared Desktops, Linked Clones vs. Disk modes with delta changes only, Staple vs. Stateful desktop images, Temp file space, User data location, Boot storms / logon storms, Sequential vs. random / O, and Sizing is much more than VMs per core and memory.