different between portability vs productivity

English

portability (usually uncountable, plural portabilities)

The quality of being portable.
(software) The ability of a program (or software system) to execute properly on multiple hardware platforms.
The ability of an employee to move between different social security schemes without losing their contributions.
The ability of a telephone subscriber to keep his/her number when switching to a different network.

productive +? -ity

productivity (usually uncountable, plural productivities)

the state of being productive, fertile or efficient
the rate at which goods or services are produced by a standard population of workers
the rate at which crops are grown on a standard area of land

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