Final answer:
Usability is the degree to which the design of a user interface takes into account the overall patient visit and the logic required by the user to use it.
Step-by-step explanation:
Usability is the degree to which the design of a particular user interface takes into account how that piece of the software fits into the overall patient visit and the logic that is required by the user to figure out how to use it. The usability of a user interface is crucial in ensuring that users can easily navigate and interact with the software.