The capability of the software product to be understood, learned, used and attractive to the user, when used under specified conditions. [ ISO/IEC 9126-1 ]
Usability [ ISO/IEC/IEEE 24765 ]: The ease with which a user can learn to operate, prepare inputs for, and interpret outputs of a system or component.
Usability [ ISO/IEC 25062 ]: The extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use.
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