portability

noun
  1. 1

    The quality of being portable.

  2. 2

    The ability of a program (or software system) to execute properly on multiple hardware platforms.

  3. 3

    The ability of an employee to move between different social security schemes without losing their contributions.

  4. 4

    The ability of a telephone subscriber to keep his/her number when switching to a different network.

Source: https://en.wiktionary.org/wiki/portability