“…In the field of Software Engineering (SE) in ISO 9126-1, usability is defined as " the capability of the software product to be understood, learned, operated, attractive to the user, and compliant to conditions" [5]. It has 6 characteristics such as functionality, reliabity, usability, efficiency, maintainability and portability [19] [20] [21]. Each of the attributes has their own sub -characteristics.…”