Mercedes Moráguez Bergues’s research while affiliated with University of Havana and other places

In the present society, the relevance of the Web is unquestionable and there is a great variety of Web sites that offer services to users. In this context, usability plays a fundamental role in the process of developing successful Web sites. In this article we review different definitions about the discipline of usability, its incorporation in the engineering process (usability engineering) and its relation to software engineer, as well as its attributes and evaluation methods. The considerations about the evaluation system of the Web usability are also presented, advising the user and basing it in the establishment of critical tasks (SIRIUS, reviewed by the authors).