Cross platform rights
There are applications with licensing conditions that permit installation on more than one type of operating system. In Snow License Manager this is called Cross platform rights.
Just as cross edition rights, cross platform rights can interact with upgrade and downgrade rights.
EXAMPLE
A license for Adobe Acrobat 8 Professional with cross platform rights could cover installations of Adobe Acrobat 8 Professional on both Windows and Mac operating systems (same version, same edition).
A license for Adobe Acrobat 8 Professional with upgrade rights and cross platform rights could cover installations of Adobe Acrobat X Pro as well (higher version, same edition), on both Windows and Mac operating systems.