As nouns the difference between practicability and operationality
is that practicability is the state of being practicable; feasibility while operationality is that characteristic of something being operational.
practicability
English
Noun
(practicabilities)
The state of being practicable; feasibility
Antonyms
* impracticability
operationality
English
Noun
(operationalities)
That characteristic of something being operational.