Based on the referential theory of the Cognitive Ergonomics, this theoretical article articulates the usability criteria, and its pertinence to the evaluation of the web informatization systems, as one of the possible perspectives to minimize the digital exclusion. This way, the article points out new elements that can be conceptually added in the construction or evaluation of websites, such as the concept of competency to action - understood through the operatory and heuristics strategies adopted by the users, and the decision process based on the representations for action. At the end, considerations are made for the articulation of these variables with navigation criteria, and with the concepts which are behind the principles of digital inclusion.
Cognitive Ergonomics; Digital Inclusion; Navigation; Competence
