Análise de métodos de avaliação de acessibilidade em sites para deficientes visuais

Abstract

The concept of web accessibility refers to the elimination of barriers in web spaces and requires that websites and portals be designed só that all people can perceive, understand, navigate and interact effectively with the web content. The implementation of digital accessibility can make a way to democratizing access, to improve the understanding and control of userŠs navigation to content and services, regardless of physical-motor and sensorial disabilities. The main situations experienced by users include accessing the computer without a monitor in the case of blind people. Considering the important role that information technology plays in the lives of the blind and the need of implementation of accurate techniques of accessibility, the present work aimed to investigate accessibility assessment methods, which are important components of web accessibility, for the blind people on websites, also discussing the characteristics and limitations of these methods. From studies that use automatic tools, found in the literature, it was concluded that none of them, alone, are capable of deĄning with signiĄcant accuracy that a site is accessible or not, and should be used in combination with methods with human evaluation, which allow the identiĄcation of interaction problems, real user problems, and the implementation of accessible solutions. A set of requirements for each method is presented as a reference for future, more efficient, analysis.