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The effectiveness of software can be evaluated with the help of important quality factors such as maintainability, portability, functionality, reliability, usability and efficiency. There is increase in demand for quality software systems, but most of them fail to fulfill the user expectations due to lack of usability of software. Usability is one of the most important quality factor in the field of software engineering which is not given the due importance even though studies shows that considerable amount of improvement in usability increases revenues. Usability ensures that the software is easier to learn, efficient and satisfying in use. Usability of software can be evaluated through many ways. In this paper, the authors have studied and drawn an analysis of different evaluation techniques.
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