International Journal of Computer and Communication System Engineering (IJCCSE)
To achieve a particular goal with effectiveness, in learnable, satisfy-able manner to maintain its efficiency during task attainment is known as software usability. This paper considers that human nature changes with time thus software usability also varies accordingly. Analyst and usability tester can calculate whole software/system usability at particular instance of time and for particular user behavior. Due to change in human nature analyst as well as usability tester need to introduce such attributes which relate human behavior directly or indirectly manner with software and system.