Virando a página: um novo conceito de acessibilidade na web para deficientes visuais

Abstract

This paper presents a new architecture of information for the conversion of hypertext documents on hypergeometric documents that preserves the characteristics of the original, and adds an optimized assistive functionality aimed at visually impaired. Briefly introduces the concepts of interface, ergonomics, accessibility and assistive technologies, and includes discussions about the quality of web pages of various higher education Institutions in the light of the criteria set by the World Wide Web Consortium (W3C) Accessibility of documents in the Web 2.0. The proposal is based on set theory and graph theory, and in particular in multigraph, which results in a type of hypergeometric navigable document. It presents a theoretical formulation and validation of the theory on a case study. The assistive technology for information access proposed provides an assistive navigation experience that transcends the sequential navigation reading today imposed to the visually impaired by conventional screen readers.