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Using and integrating Discount Usability Engineering in the life cycle of a health care Web application

Usability is an important characteristic in any interactive system, but sometimes is neglected by some software development teams because of the lack of knowledge of these about usability techniques. They think that the methods are hard to learn, execute and integrate on the software development life cycle. A kind of application that suffer with usability problems is the health care software. Our team work with a health care software developed by people from computer science and physiotherapy, without people related to usability. After various functions developed, the users continuously claim for easier ways to use the software, and we detect some learnability problems. At this point we decided to focus in usability, using the methods of Discount Usability Engineering. This work presents the methodology used during the heuristic evaluation and usability tests. The results show that is possible to reach a satisfactory amount of problems to correct, great feedback from users, similar results between heuristic evaluation and usability tests with users and that even people with few knowledge about usability can learn and conduct tests like ones of the Usability Engineering. Additionally, these methods can be integrated in our software life cycle, what will avoid future re-work.