In order to assess which option to use, it is important to understand each option, their limitations, then to configure for best performance. The user can install Windows in Boot Camp, a native feature of the Apple Inc.’s OS X operating system, or they can use a virtualization program, such as Parallels or VMWare Fusion. ArcGIS for Desktop has been developed for Windows Operating systems, but there are many users out there running ArcGIS Desktop on Macs.